Linux-libre 4.2.3-gnupck-4.2.3-gnu

90 files changed, 334 insertions, 1088 deletions

diff --git a/fs/aufs/Makefile b/fs/aufs/Makefile
index c7a501e37..c7efb62b5 100644
--- a/fs/aufs/Makefile
+++ b/fs/aufs/Makefile
@@ -1,19 +1,11 @@
 
-include ${src}/magic.mk
-ifeq (${CONFIG_AUFS_FS},m)
-include ${src}/conf.mk
-endif
--include ${src}/priv_def.mk
+include ${srctree}/${src}/magic.mk
 
 # cf. include/linux/kernel.h
 # enable pr_debug
 ccflags-y += -DDEBUG
 # sparse requires the full pathname
-ifdef M
-ccflags-y += -include ${M}/../../include/uapi/linux/aufs_type.h
-else
 ccflags-y += -include ${srctree}/include/uapi/linux/aufs_type.h
-endif
 
 obj-$(CONFIG_AUFS_FS) += aufs.o
 aufs-y := module.o sbinfo.o super.o branch.o xino.o sysaufs.o opts.o \
diff --git a/fs/aufs/aufs.h b/fs/aufs/aufs.h
index d82e9743f..75290bdbb 100644
--- a/fs/aufs/aufs.h
+++ b/fs/aufs/aufs.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/branch.c b/fs/aufs/branch.c
index 2ec496438..d34e789ca 100644
--- a/fs/aufs/branch.c
+++ b/fs/aufs/branch.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/branch.h b/fs/aufs/branch.h
index 3d026f57a..7b9e7c9cd 100644
--- a/fs/aufs/branch.h
+++ b/fs/aufs/branch.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/conf.mk b/fs/aufs/conf.mk
deleted file mode 100644
index 0bbb2d3a5..000000000
--- a/fs/aufs/conf.mk
+++ /dev/null
@@ -1,38 +0,0 @@
-
-AuConfStr = CONFIG_AUFS_FS=${CONFIG_AUFS_FS}
-
-define AuConf
-ifdef ${1}
-AuConfStr += ${1}=${${1}}
-endif
-endef
-
-AuConfAll = BRANCH_MAX_127 BRANCH_MAX_511 BRANCH_MAX_1023 BRANCH_MAX_32767 \
-	SBILIST \
-	HNOTIFY HFSNOTIFY \
-	EXPORT INO_T_64 \
-	XATTR \
-	FHSM \
-	RDU \
-	SHWH \
-	BR_RAMFS \
-	BR_FUSE POLL \
-	BR_HFSPLUS \
-	BDEV_LOOP \
-	DEBUG MAGIC_SYSRQ
-$(foreach i, ${AuConfAll}, \
-	$(eval $(call AuConf,CONFIG_AUFS_${i})))
-
-AuConfName = ${obj}/conf.str
-${AuConfName}.tmp: FORCE
-	@echo ${AuConfStr} | tr ' ' '\n' | sed -e 's/^/"/' -e 's/$$/\\n"/' > $@
-${AuConfName}: ${AuConfName}.tmp
-	@diff -q $< $@ > /dev/null 2>&1 || { \
-	echo '  GEN    ' $@; \
-	cp -p $< $@; \
-	}
-FORCE:
-clean-files += ${AuConfName} ${AuConfName}.tmp
-${obj}/sysfs.o: ${AuConfName}
-
--include ${srctree}/${src}/conf_priv.mk
diff --git a/fs/aufs/cpup.c b/fs/aufs/cpup.c
index 3ea177a5d..f6f6818ba 100644
--- a/fs/aufs/cpup.c
+++ b/fs/aufs/cpup.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/cpup.h b/fs/aufs/cpup.h
index a5da7dbe9..3355f0880 100644
--- a/fs/aufs/cpup.h
+++ b/fs/aufs/cpup.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dbgaufs.c b/fs/aufs/dbgaufs.c
index df4c65635..c7c612c28 100644
--- a/fs/aufs/dbgaufs.c
+++ b/fs/aufs/dbgaufs.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dbgaufs.h b/fs/aufs/dbgaufs.h
index 03d47b80b..efa9a4db9 100644
--- a/fs/aufs/dbgaufs.h
+++ b/fs/aufs/dbgaufs.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dcsub.c b/fs/aufs/dcsub.c
index 910a2e870..f9d9d526c 100644
--- a/fs/aufs/dcsub.c
+++ b/fs/aufs/dcsub.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dcsub.h b/fs/aufs/dcsub.h
index d372325b2..2aa87acc3 100644
--- a/fs/aufs/dcsub.h
+++ b/fs/aufs/dcsub.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/debug.c b/fs/aufs/debug.c
index a1154d6de..e553cef1a 100644
--- a/fs/aufs/debug.c
+++ b/fs/aufs/debug.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/debug.h b/fs/aufs/debug.h
index de6c2a682..0a2e7e7b0 100644
--- a/fs/aufs/debug.h
+++ b/fs/aufs/debug.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dentry.c b/fs/aufs/dentry.c
index 1191a6c93..993c95e14 100644
--- a/fs/aufs/dentry.c
+++ b/fs/aufs/dentry.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dentry.h b/fs/aufs/dentry.h
index 2ce602e1a..65161462b 100644
--- a/fs/aufs/dentry.h
+++ b/fs/aufs/dentry.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dinfo.c b/fs/aufs/dinfo.c
index 7b9ca3b88..25b971bc6 100644
--- a/fs/aufs/dinfo.c
+++ b/fs/aufs/dinfo.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dir.c b/fs/aufs/dir.c
index 7705c2997..630819083 100644
--- a/fs/aufs/dir.c
+++ b/fs/aufs/dir.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dir.h b/fs/aufs/dir.h
index e4acf732c..803a0f1a5 100644
--- a/fs/aufs/dir.h
+++ b/fs/aufs/dir.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dynop.c b/fs/aufs/dynop.c
index a04d02f91..1f1283814 100644
--- a/fs/aufs/dynop.c
+++ b/fs/aufs/dynop.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2010-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/dynop.h b/fs/aufs/dynop.h
index 724dddab1..6d739c124 100644
--- a/fs/aufs/dynop.h
+++ b/fs/aufs/dynop.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2010-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/export.c b/fs/aufs/export.c
index c85b036b8..3026f39a7 100644
--- a/fs/aufs/export.c
+++ b/fs/aufs/export.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/f_op.c b/fs/aufs/f_op.c
index 34037c708..91c2ce78a 100644
--- a/fs/aufs/f_op.c
+++ b/fs/aufs/f_op.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/fhsm.c b/fs/aufs/fhsm.c
index 7ca4d1759..47106cbe9 100644
--- a/fs/aufs/fhsm.c
+++ b/fs/aufs/fhsm.c
@@ -1,19 +1,5 @@
 /*
  * Copyright (C) 2011-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
 /*
diff --git a/fs/aufs/file.c b/fs/aufs/file.c
index d3a566e4f..8b17fbac1 100644
--- a/fs/aufs/file.c
+++ b/fs/aufs/file.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/file.h b/fs/aufs/file.h
index 10ede169f..488473e31 100644
--- a/fs/aufs/file.h
+++ b/fs/aufs/file.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/finfo.c b/fs/aufs/finfo.c
index 7ac467cf7..05732c97b 100644
--- a/fs/aufs/finfo.c
+++ b/fs/aufs/finfo.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/fstype.h b/fs/aufs/fstype.h
index 8b6878b4e..6c3e1debf 100644
--- a/fs/aufs/fstype.h
+++ b/fs/aufs/fstype.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/hfsnotify.c b/fs/aufs/hfsnotify.c
index dc4f6c3c9..5c370196f 100644
--- a/fs/aufs/hfsnotify.c
+++ b/fs/aufs/hfsnotify.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/hfsplus.c b/fs/aufs/hfsplus.c
index ced054639..34c1f1abf 100644
--- a/fs/aufs/hfsplus.c
+++ b/fs/aufs/hfsplus.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2010-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/hnotify.c b/fs/aufs/hnotify.c
index 643bc57c5..3943dc4b4 100644
--- a/fs/aufs/hnotify.c
+++ b/fs/aufs/hnotify.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/i_op.c b/fs/aufs/i_op.c
index 7521691ec..a50cd4c59 100644
--- a/fs/aufs/i_op.c
+++ b/fs/aufs/i_op.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
@@ -1297,7 +1284,7 @@ static const char *aufs_follow_link(struct dentry *dentry, void **cookie)
 	int err;
 	aufs_bindex_t bindex;
 
-	ret = NULL; /* supress a warning */
+	ret = NULL; /* suppress a warning */
 	err = aufs_read_lock(dentry, AuLock_IR | AuLock_GEN);
 	if (unlikely(err))
 		goto out;
diff --git a/fs/aufs/i_op_add.c b/fs/aufs/i_op_add.c
index 209b26864..0c3530e55 100644
--- a/fs/aufs/i_op_add.c
+++ b/fs/aufs/i_op_add.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/i_op_del.c b/fs/aufs/i_op_del.c
index 78cf67a52..3cd4c7b19 100644
--- a/fs/aufs/i_op_del.c
+++ b/fs/aufs/i_op_del.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/i_op_ren.c b/fs/aufs/i_op_ren.c
index 4db778057..132301251 100644
--- a/fs/aufs/i_op_ren.c
+++ b/fs/aufs/i_op_ren.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/iinfo.c b/fs/aufs/iinfo.c
index 0eaa7de7e..b8efd4586 100644
--- a/fs/aufs/iinfo.c
+++ b/fs/aufs/iinfo.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/inode.c b/fs/aufs/inode.c
index 201e112a0..559da3358 100644
--- a/fs/aufs/inode.c
+++ b/fs/aufs/inode.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/inode.h b/fs/aufs/inode.h
index 1b9be356d..003534a44 100644
--- a/fs/aufs/inode.h
+++ b/fs/aufs/inode.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/ioctl.c b/fs/aufs/ioctl.c
index 18d7c6aea..87e3ddc88 100644
--- a/fs/aufs/ioctl.c
+++ b/fs/aufs/ioctl.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/loop.c b/fs/aufs/loop.c
index 677568445..69f7e9647 100644
--- a/fs/aufs/loop.c
+++ b/fs/aufs/loop.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/loop.h b/fs/aufs/loop.h
index 0c28c2366..6d9864dff 100644
--- a/fs/aufs/loop.h
+++ b/fs/aufs/loop.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/module.c b/fs/aufs/module.c
index 2c70dfffc..a7a4b3647 100644
--- a/fs/aufs/module.c
+++ b/fs/aufs/module.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
@@ -102,7 +89,6 @@ MODULE_AUTHOR("Junjiro R. Okajima <aufs-users@lists.sourceforge.net>");
 MODULE_DESCRIPTION(AUFS_NAME
 	" -- Advanced multi layered unification filesystem");
 MODULE_VERSION(AUFS_VERSION);
-MODULE_ALIAS_FS(AUFS_NAME);
 
 /* this module parameter has no meaning when SYSFS is disabled */
 int sysaufs_brs = 1;
@@ -120,7 +106,15 @@ static char au_esc_chars[0x20 + 3]; /* 0x01-0x20, backslash, del, and NULL */
 
 int au_seq_path(struct seq_file *seq, struct path *path)
 {
-	return seq_path(seq, path, au_esc_chars);
+	int err;
+
+	err = seq_path(seq, path, au_esc_chars);
+	if (err > 0)
+		err = 0;
+	else if (err < 0)
+		err = -ENOMEM;
+
+	return err;
 }
 
 /* ---------------------------------------------------------------------- */
diff --git a/fs/aufs/module.h b/fs/aufs/module.h
index c0a29d49d..adee827fa 100644
--- a/fs/aufs/module.h
+++ b/fs/aufs/module.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/mvdown.c b/fs/aufs/mvdown.c
index 25e3a80b9..bec20d360 100644
--- a/fs/aufs/mvdown.c
+++ b/fs/aufs/mvdown.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2011-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/opts.c b/fs/aufs/opts.c
index 4e8e2e1ff..90098fe7f 100644
--- a/fs/aufs/opts.c
+++ b/fs/aufs/opts.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/opts.h b/fs/aufs/opts.h
index b18a4aa00..da552ff50 100644
--- a/fs/aufs/opts.h
+++ b/fs/aufs/opts.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/plink.c b/fs/aufs/plink.c
index 988fba940..af2246c09 100644
--- a/fs/aufs/plink.c
+++ b/fs/aufs/plink.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/poll.c b/fs/aufs/poll.c
index 262a792fd..c324fc727 100644
--- a/fs/aufs/poll.c
+++ b/fs/aufs/poll.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/posix_acl.c b/fs/aufs/posix_acl.c
index d5266ef76..d9ce95724 100644
--- a/fs/aufs/posix_acl.c
+++ b/fs/aufs/posix_acl.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2014-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/procfs.c b/fs/aufs/procfs.c
index 772be91a9..ead2a0052 100644
--- a/fs/aufs/procfs.c
+++ b/fs/aufs/procfs.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2010-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/rdu.c b/fs/aufs/rdu.c
index 3beba1806..f11d9bbbd 100644
--- a/fs/aufs/rdu.c
+++ b/fs/aufs/rdu.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/rwsem.h b/fs/aufs/rwsem.h
index deb813f3e..171ee0c18 100644
--- a/fs/aufs/rwsem.h
+++ b/fs/aufs/rwsem.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/sbinfo.c b/fs/aufs/sbinfo.c
index 6f1e32b87..cb7ac83a1 100644
--- a/fs/aufs/sbinfo.c
+++ b/fs/aufs/sbinfo.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/spl.h b/fs/aufs/spl.h
index 94f09f298..a66d39e9e 100644
--- a/fs/aufs/spl.h
+++ b/fs/aufs/spl.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/super.c b/fs/aufs/super.c
index 6b7f38e48..7ae6ea12e 100644
--- a/fs/aufs/super.c
+++ b/fs/aufs/super.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
@@ -104,7 +91,7 @@ static int au_show_brs(struct seq_file *seq, struct super_block *sb)
 		path.mnt = au_br_mnt(br);
 		path.dentry = hdp[bindex].hd_dentry;
 		err = au_seq_path(seq, &path);
-		if (err > 0) {
+		if (!err) {
 			au_optstr_br_perm(&perm, br->br_perm);
 			err = seq_printf(seq, "=%s", perm.a);
 			if (err == -1)
diff --git a/fs/aufs/super.h b/fs/aufs/super.h
index e5e77427e..8ec54fa6e 100644
--- a/fs/aufs/super.h
+++ b/fs/aufs/super.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/sysaufs.c b/fs/aufs/sysaufs.c
index 42dbc2825..29ac6faa6 100644
--- a/fs/aufs/sysaufs.c
+++ b/fs/aufs/sysaufs.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/sysaufs.h b/fs/aufs/sysaufs.h
index 8e0fd02aa..feb78fd86 100644
--- a/fs/aufs/sysaufs.h
+++ b/fs/aufs/sysaufs.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/sysfs.c b/fs/aufs/sysfs.c
index 549f71d1a..cc74d02b1 100644
--- a/fs/aufs/sysfs.c
+++ b/fs/aufs/sysfs.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
@@ -23,30 +10,7 @@
 #include <linux/seq_file.h>
 #include "aufs.h"
 
-#ifdef CONFIG_AUFS_FS_MODULE
-/* this entry violates the "one line per file" policy of sysfs */
-static ssize_t config_show(struct kobject *kobj, struct kobj_attribute *attr,
-			   char *buf)
-{
-	ssize_t err;
-	static char *conf =
-/* this file is generated at compiling */
-#include "conf.str"
-		;
-
-	err = snprintf(buf, PAGE_SIZE, conf);
-	if (unlikely(err >= PAGE_SIZE))
-		err = -EFBIG;
-	return err;
-}
-
-static struct kobj_attribute au_config_attr = __ATTR_RO(config);
-#endif
-
 static struct attribute *au_attr[] = {
-#ifdef CONFIG_AUFS_FS_MODULE
-	&au_config_attr.attr,
-#endif
 	NULL,	/* need to NULL terminate the list of attributes */
 };
 
@@ -97,9 +61,11 @@ static int sysaufs_si_br(struct seq_file *seq, struct super_block *sb,
 	case AuBrSysfs_BR:
 		path.mnt = au_br_mnt(br);
 		path.dentry = au_h_dptr(root, bindex);
-		au_seq_path(seq, &path);
-		au_optstr_br_perm(&perm, br->br_perm);
-		err = seq_printf(seq, "=%s\n", perm.a);
+		err = au_seq_path(seq, &path);
+		if (!err) {
+			au_optstr_br_perm(&perm, br->br_perm);
+			err = seq_printf(seq, "=%s\n", perm.a);
+		}
 		break;
 	case AuBrSysfs_BRID:
 		err = seq_printf(seq, "%d\n", br->br_id);
@@ -260,7 +226,9 @@ static int au_brinfo(struct super_block *sb, union aufs_brinfo __user *arg)
 		if (unlikely(err))
 			break;
 
-		au_seq_path(seq, &br->br_path);
+		err = au_seq_path(seq, &br->br_path);
+		if (unlikely(err))
+			break;
 		err = seq_putc(seq, '\0');
 		if (!err && seq->count <= sz) {
 			err = copy_to_user(arg->path, seq->buf, seq->count);
diff --git a/fs/aufs/sysrq.c b/fs/aufs/sysrq.c
index a3e95bce6..dcfa82462 100644
--- a/fs/aufs/sysrq.c
+++ b/fs/aufs/sysrq.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/vdir.c b/fs/aufs/vdir.c
index 0929d393a..c3f6a74a1 100644
--- a/fs/aufs/vdir.c
+++ b/fs/aufs/vdir.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/vfsub.c b/fs/aufs/vfsub.c
index d2af7ce8d..da0df5a38 100644
--- a/fs/aufs/vfsub.c
+++ b/fs/aufs/vfsub.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/vfsub.h b/fs/aufs/vfsub.h
index 5c89f8e56..778ea2053 100644
--- a/fs/aufs/vfsub.h
+++ b/fs/aufs/vfsub.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/wbr_policy.c b/fs/aufs/wbr_policy.c
index 3949efb50..53a01fb06 100644
--- a/fs/aufs/wbr_policy.c
+++ b/fs/aufs/wbr_policy.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/whout.c b/fs/aufs/whout.c
index c3fc2d4bd..a7f160efb 100644
--- a/fs/aufs/whout.c
+++ b/fs/aufs/whout.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/whout.h b/fs/aufs/whout.h
index 81652ce2f..b39acea2c 100644
--- a/fs/aufs/whout.h
+++ b/fs/aufs/whout.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/wkq.c b/fs/aufs/wkq.c
index 3ffedae93..08870ec06 100644
--- a/fs/aufs/wkq.c
+++ b/fs/aufs/wkq.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/wkq.h b/fs/aufs/wkq.h
index e57bfb3d9..8f01343d8 100644
--- a/fs/aufs/wkq.h
+++ b/fs/aufs/wkq.h
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/xattr.c b/fs/aufs/xattr.c
index b7e13ca3e..c1695b329 100644
--- a/fs/aufs/xattr.c
+++ b/fs/aufs/xattr.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2014-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
diff --git a/fs/aufs/xino.c b/fs/aufs/xino.c
index 053594410..f377ce591 100644
--- a/fs/aufs/xino.c
+++ b/fs/aufs/xino.c
@@ -1,18 +1,5 @@
 /*
  * Copyright (C) 2005-2015 Junjiro R. Okajima
- *
- * This program, aufs is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
@@ -1282,10 +1269,9 @@ int au_xino_path(struct seq_file *seq, struct file *file)
 	int err;
 
 	err = au_seq_path(seq, &file->f_path);
-	if (unlikely(err < 0))
+	if (unlikely(err))
 		goto out;
 
-	err = 0;
 #define Deleted "\\040(deleted)"
 	seq->count -= sizeof(Deleted) - 1;
 	AuDebugOn(memcmp(seq->buf + seq->count, Deleted,
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index f5021fcb1..089e7f854 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1893,8 +1893,11 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 			spin_unlock(&root->fs_info->trans_lock);
 
 			wait_for_commit(root, prev_trans);
+			ret = prev_trans->aborted;
 
 			btrfs_put_transaction(prev_trans);
+			if (ret)
+				goto cleanup_transaction;
 		} else {
 			spin_unlock(&root->fs_info->trans_lock);
 		}
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 49b8b6e41..c7b84f3bf 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -70,6 +70,12 @@ static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
 		goto out_drop_write;
 	}
 
+	if (src_file.file->f_op->unlocked_ioctl != cifs_ioctl) {
+		rc = -EBADF;
+		cifs_dbg(VFS, "src file seems to be from a different filesystem type\n");
+		goto out_fput;
+	}
+
 	if ((!src_file.file->private_data) || (!dst_file->private_data)) {
 		rc = -EBADF;
 		cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");
diff --git a/fs/coredump.c b/fs/coredump.c
index c5ecde6f3..a8f75640a 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -513,10 +513,10 @@ void do_coredump(const siginfo_t *siginfo)
 	const struct cred *old_cred;
 	struct cred *cred;
 	int retval = 0;
-	int flag = 0;
 	int ispipe;
 	struct files_struct *displaced;
-	bool need_nonrelative = false;
+	/* require nonrelative corefile path and be extra careful */
+	bool need_suid_safe = false;
 	bool core_dumped = false;
 	static atomic_t core_dump_count = ATOMIC_INIT(0);
 	struct coredump_params cprm = {
@@ -550,9 +550,8 @@ void do_coredump(const siginfo_t *siginfo)
 	 */
 	if (__get_dumpable(cprm.mm_flags) == SUID_DUMP_ROOT) {
 		/* Setuid core dump mode */
-		flag = O_EXCL;		/* Stop rewrite attacks */
 		cred->fsuid = GLOBAL_ROOT_UID;	/* Dump root private */
-		need_nonrelative = true;
+		need_suid_safe = true;
 	}
 
 	retval = coredump_wait(siginfo->si_signo, &core_state);
@@ -633,7 +632,7 @@ void do_coredump(const siginfo_t *siginfo)
 		if (cprm.limit < binfmt->min_coredump)
 			goto fail_unlock;
 
-		if (need_nonrelative && cn.corename[0] != '/') {
+		if (need_suid_safe && cn.corename[0] != '/') {
 			printk(KERN_WARNING "Pid %d(%s) can only dump core "\
 				"to fully qualified path!\n",
 				task_tgid_vnr(current), current->comm);
@@ -641,8 +640,35 @@ void do_coredump(const siginfo_t *siginfo)
 			goto fail_unlock;
 		}
 
+		/*
+		 * Unlink the file if it exists unless this is a SUID
+		 * binary - in that case, we're running around with root
+		 * privs and don't want to unlink another user's coredump.
+		 */
+		if (!need_suid_safe) {
+			mm_segment_t old_fs;
+
+			old_fs = get_fs();
+			set_fs(KERNEL_DS);
+			/*
+			 * If it doesn't exist, that's fine. If there's some
+			 * other problem, we'll catch it at the filp_open().
+			 */
+			(void) sys_unlink((const char __user *)cn.corename);
+			set_fs(old_fs);
+		}
+
+		/*
+		 * There is a race between unlinking and creating the
+		 * file, but if that causes an EEXIST here, that's
+		 * fine - another process raced with us while creating
+		 * the corefile, and the other process won. To userspace,
+		 * what matters is that at least one of the two processes
+		 * writes its coredump successfully, not which one.
+		 */
 		cprm.file = filp_open(cn.corename,
-				 O_CREAT | 2 | O_NOFOLLOW | O_LARGEFILE | flag,
+				 O_CREAT | 2 | O_NOFOLLOW |
+				 O_LARGEFILE | O_EXCL,
 				 0600);
 		if (IS_ERR(cprm.file))
 			goto fail_unlock;
@@ -659,11 +685,15 @@ void do_coredump(const siginfo_t *siginfo)
 		if (!S_ISREG(inode->i_mode))
 			goto close_fail;
 		/*
-		 * Dont allow local users get cute and trick others to coredump
-		 * into their pre-created files.
+		 * Don't dump core if the filesystem changed owner or mode
+		 * of the file during file creation. This is an issue when
+		 * a process dumps core while its cwd is e.g. on a vfat
+		 * filesystem.
 		 */
 		if (!uid_eq(inode->i_uid, current_fsuid()))
 			goto close_fail;
+		if ((inode->i_mode & 0677) != 0600)
+			goto close_fail;
 		if (!(cprm.file->f_mode & FMODE_CAN_WRITE))
 			goto close_fail;
 		if (do_truncate(cprm.file->f_path.dentry, 0, 0, cprm.file))
diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index 8db0b4644..63cd2c147 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -45,20 +45,20 @@
 static int ecryptfs_d_revalidate(struct dentry *dentry, unsigned int flags)
 {
 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
-	int rc;
-
-	if (!(lower_dentry->d_flags & DCACHE_OP_REVALIDATE))
-		return 1;
+	int rc = 1;
 
 	if (flags & LOOKUP_RCU)
 		return -ECHILD;
 
-	rc = lower_dentry->d_op->d_revalidate(lower_dentry, flags);
+	if (lower_dentry->d_flags & DCACHE_OP_REVALIDATE)
+		rc = lower_dentry->d_op->d_revalidate(lower_dentry, flags);
+
 	if (d_really_is_positive(dentry)) {
-		struct inode *lower_inode =
-			ecryptfs_inode_to_lower(d_inode(dentry));
+		struct inode *inode = d_inode(dentry);
 
-		fsstack_copy_attr_all(d_inode(dentry), lower_inode);
+		fsstack_copy_attr_all(inode, ecryptfs_inode_to_lower(inode));
+		if (!inode->i_nlink)
+			return 0;
 	}
 	return rc;
 }
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 9981064c4..a5e8c744e 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -325,6 +325,22 @@ static void save_error_info(struct super_block *sb, const char *func,
 	ext4_commit_super(sb, 1);
 }
 
+/*
+ * The del_gendisk() function uninitializes the disk-specific data
+ * structures, including the bdi structure, without telling anyone
+ * else.  Once this happens, any attempt to call mark_buffer_dirty()
+ * (for example, by ext4_commit_super), will cause a kernel OOPS.
+ * This is a kludge to prevent these oops until we can put in a proper
+ * hook in del_gendisk() to inform the VFS and file system layers.
+ */
+static int block_device_ejected(struct super_block *sb)
+{
+	struct inode *bd_inode = sb->s_bdev->bd_inode;
+	struct backing_dev_info *bdi = inode_to_bdi(bd_inode);
+
+	return bdi->dev == NULL;
+}
+
 static void ext4_journal_commit_callback(journal_t *journal, transaction_t *txn)
 {
 	struct super_block		*sb = journal->j_private;
@@ -4617,7 +4633,7 @@ static int ext4_commit_super(struct super_block *sb, int sync)
 	struct buffer_head *sbh = EXT4_SB(sb)->s_sbh;
 	int error = 0;
 
-	if (!sbh)
+	if (!sbh || block_device_ejected(sb))
 		return error;
 	if (buffer_write_io_error(sbh)) {
 		/*
@@ -4833,10 +4849,11 @@ static int ext4_freeze(struct super_block *sb)
 		error = jbd2_journal_flush(journal);
 		if (error < 0)
 			goto out;
+
+		/* Journal blocked and flushed, clear needs_recovery flag. */
+		EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
 	}
 
-	/* Journal blocked and flushed, clear needs_recovery flag. */
-	EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
 	error = ext4_commit_super(sb, 1);
 out:
 	if (journal)
@@ -4854,8 +4871,11 @@ static int ext4_unfreeze(struct super_block *sb)
 	if (sb->s_flags & MS_RDONLY)
 		return 0;
 
-	/* Reset the needs_recovery flag before the fs is unlocked. */
-	EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
+	if (EXT4_SB(sb)->s_journal) {
+		/* Reset the needs_recovery flag before the fs is unlocked. */
+		EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
+	}
+
 	ext4_commit_super(sb, 1);
 	return 0;
 }
diff --git a/fs/hfs/bnode.c b/fs/hfs/bnode.c
index d3fa6bd95..221719eac 100644
--- a/fs/hfs/bnode.c
+++ b/fs/hfs/bnode.c
@@ -288,7 +288,6 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
 			page_cache_release(page);
 			goto fail;
 		}
-		page_cache_release(page);
 		node->page[i] = page;
 	}
 
@@ -398,11 +397,11 @@ node_error:
 
 void hfs_bnode_free(struct hfs_bnode *node)
 {
-	//int i;
+	int i;
 
-	//for (i = 0; i < node->tree->pages_per_bnode; i++)
-	//	if (node->page[i])
-	//		page_cache_release(node->page[i]);
+	for (i = 0; i < node->tree->pages_per_bnode; i++)
+		if (node->page[i])
+			page_cache_release(node->page[i]);
 	kfree(node);
 }
 
diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c
index 9f4ee7f52..6fc766df0 100644
--- a/fs/hfs/brec.c
+++ b/fs/hfs/brec.c
@@ -131,13 +131,16 @@ skip:
 	hfs_bnode_write(node, entry, data_off + key_len, entry_len);
 	hfs_bnode_dump(node);
 
-	if (new_node) {
-		/* update parent key if we inserted a key
-		 * at the start of the first node
-		 */
-		if (!rec && new_node != node)
-			hfs_brec_update_parent(fd);
+	/*
+	 * update parent key if we inserted a key
+	 * at the start of the node and it is not the new node
+	 */
+	if (!rec && new_node != node) {
+		hfs_bnode_read_key(node, fd->search_key, data_off + size);
+		hfs_brec_update_parent(fd);
+	}
 
+	if (new_node) {
 		hfs_bnode_put(fd->bnode);
 		if (!new_node->parent) {
 			hfs_btree_inc_height(tree);
@@ -166,9 +169,6 @@ skip:
 		goto again;
 	}
 
-	if (!rec)
-		hfs_brec_update_parent(fd);
-
 	return 0;
 }
 
@@ -366,6 +366,8 @@ again:
 	if (IS_ERR(parent))
 		return PTR_ERR(parent);
 	__hfs_brec_find(parent, fd);
+	if (fd->record < 0)
+		return -ENOENT;
 	hfs_bnode_dump(parent);
 	rec = fd->record;
 
diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c
index 759708fd9..63924662a 100644
--- a/fs/hfsplus/bnode.c
+++ b/fs/hfsplus/bnode.c
@@ -454,7 +454,6 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
 			page_cache_release(page);
 			goto fail;
 		}
-		page_cache_release(page);
 		node->page[i] = page;
 	}
 
@@ -566,13 +565,11 @@ node_error:
 
 void hfs_bnode_free(struct hfs_bnode *node)
 {
-#if 0
 	int i;
 
 	for (i = 0; i < node->tree->pages_per_bnode; i++)
 		if (node->page[i])
 			page_cache_release(node->page[i]);
-#endif
 	kfree(node);
 }
 
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index 4227dc4f7..8c44654ce 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -417,12 +417,12 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
  * journal_clean_one_cp_list
  *
  * Find all the written-back checkpoint buffers in the given list and
- * release them.
+ * release them. If 'destroy' is set, clean all buffers unconditionally.
  *
  * Called with j_list_lock held.
  * Returns 1 if we freed the transaction, 0 otherwise.
  */
-static int journal_clean_one_cp_list(struct journal_head *jh)
+static int journal_clean_one_cp_list(struct journal_head *jh, bool destroy)
 {
 	struct journal_head *last_jh;
 	struct journal_head *next_jh = jh;
@@ -436,7 +436,10 @@ static int journal_clean_one_cp_list(struct journal_head *jh)
 	do {
 		jh = next_jh;
 		next_jh = jh->b_cpnext;
-		ret = __try_to_free_cp_buf(jh);
+		if (!destroy)
+			ret = __try_to_free_cp_buf(jh);
+		else
+			ret = __jbd2_journal_remove_checkpoint(jh) + 1;
 		if (!ret)
 			return freed;
 		if (ret == 2)
@@ -459,10 +462,11 @@ static int journal_clean_one_cp_list(struct journal_head *jh)
  * journal_clean_checkpoint_list
  *
  * Find all the written-back checkpoint buffers in the journal and release them.
+ * If 'destroy' is set, release all buffers unconditionally.
  *
  * Called with j_list_lock held.
  */
-void __jbd2_journal_clean_checkpoint_list(journal_t *journal)
+void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy)
 {
 	transaction_t *transaction, *last_transaction, *next_transaction;
 	int ret;
@@ -476,7 +480,8 @@ void __jbd2_journal_clean_checkpoint_list(journal_t *journal)
 	do {
 		transaction = next_transaction;
 		next_transaction = transaction->t_cpnext;
-		ret = journal_clean_one_cp_list(transaction->t_checkpoint_list);
+		ret = journal_clean_one_cp_list(transaction->t_checkpoint_list,
+						destroy);
 		/*
 		 * This function only frees up some memory if possible so we
 		 * dont have an obligation to finish processing. Bail out if
@@ -492,7 +497,7 @@ void __jbd2_journal_clean_checkpoint_list(journal_t *journal)
 		 * we can possibly see not yet submitted buffers on io_list
 		 */
 		ret = journal_clean_one_cp_list(transaction->
-				t_checkpoint_io_list);
+				t_checkpoint_io_list, destroy);
 		if (need_resched())
 			return;
 		/*
@@ -506,6 +511,28 @@ void __jbd2_journal_clean_checkpoint_list(journal_t *journal)
 }
 
 /*
+ * Remove buffers from all checkpoint lists as journal is aborted and we just
+ * need to free memory
+ */
+void jbd2_journal_destroy_checkpoint(journal_t *journal)
+{
+	/*
+	 * We loop because __jbd2_journal_clean_checkpoint_list() may abort
+	 * early due to a need of rescheduling.
+	 */
+	while (1) {
+		spin_lock(&journal->j_list_lock);
+		if (!journal->j_checkpoint_transactions) {
+			spin_unlock(&journal->j_list_lock);
+			break;
+		}
+		__jbd2_journal_clean_checkpoint_list(journal, true);
+		spin_unlock(&journal->j_list_lock);
+		cond_resched();
+	}
+}
+
+/*
  * journal_remove_checkpoint: called after a buffer has been committed
  * to disk (either by being write-back flushed to disk, or being
  * committed to the log).
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index b73e0215b..362e5f614 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -510,7 +510,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
 	 * frees some memory
 	 */
 	spin_lock(&journal->j_list_lock);
-	__jbd2_journal_clean_checkpoint_list(journal);
+	__jbd2_journal_clean_checkpoint_list(journal, false);
 	spin_unlock(&journal->j_list_lock);
 
 	jbd_debug(3, "JBD2: commit phase 1\n");
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 4ff3fad4e..2721513ad 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1693,8 +1693,17 @@ int jbd2_journal_destroy(journal_t *journal)
 	while (journal->j_checkpoint_transactions != NULL) {
 		spin_unlock(&journal->j_list_lock);
 		mutex_lock(&journal->j_checkpoint_mutex);
-		jbd2_log_do_checkpoint(journal);
+		err = jbd2_log_do_checkpoint(journal);
 		mutex_unlock(&journal->j_checkpoint_mutex);
+		/*
+		 * If checkpointing failed, just free the buffers to avoid
+		 * looping forever
+		 */
+		if (err) {
+			jbd2_journal_destroy_checkpoint(journal);
+			spin_lock(&journal->j_list_lock);
+			break;
+		}
 		spin_lock(&journal->j_list_lock);
 	}
 
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index b3289d701..14e3b1e1b 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1199,6 +1199,11 @@ static int ff_layout_write_done_cb(struct rpc_task *task,
 	    hdr->res.verf->committed == NFS_DATA_SYNC)
 		ff_layout_set_layoutcommit(hdr);
 
+	/* zero out fattr since we don't care DS attr at all */
+	hdr->fattr.valid = 0;
+	if (task->tk_status >= 0)
+		nfs_writeback_update_inode(hdr);
+
 	return 0;
 }
 
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index f13e1969e..b28fa4cbe 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -500,16 +500,19 @@ int ff_layout_encode_ds_ioerr(struct nfs4_flexfile_layout *flo,
 					   range->offset, range->length))
 			continue;
 		/* offset(8) + length(8) + stateid(NFS4_STATEID_SIZE)
-		 * + deviceid(NFS4_DEVICEID4_SIZE) + status(4) + opnum(4)
+		 * + array length + deviceid(NFS4_DEVICEID4_SIZE)
+		 * + status(4) + opnum(4)
 		 */
 		p = xdr_reserve_space(xdr,
-				24 + NFS4_STATEID_SIZE + NFS4_DEVICEID4_SIZE);
+				28 + NFS4_STATEID_SIZE + NFS4_DEVICEID4_SIZE);
 		if (unlikely(!p))
 			return -ENOBUFS;
 		p = xdr_encode_hyper(p, err->offset);
 		p = xdr_encode_hyper(p, err->length);
 		p = xdr_encode_opaque_fixed(p, &err->stateid,
 					    NFS4_STATEID_SIZE);
+		/* Encode 1 error */
+		*p++ = cpu_to_be32(1);
 		p = xdr_encode_opaque_fixed(p, &err->deviceid,
 					    NFS4_DEVICEID4_SIZE);
 		*p++ = cpu_to_be32(err->status);
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 0adc7d245..4afbe1332 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1273,13 +1273,6 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
 	return 0;
 }
 
-static int nfs_ctime_need_update(const struct inode *inode, const struct nfs_fattr *fattr)
-{
-	if (!(fattr->valid & NFS_ATTR_FATTR_CTIME))
-		return 0;
-	return timespec_compare(&fattr->ctime, &inode->i_ctime) > 0;
-}
-
 static atomic_long_t nfs_attr_generation_counter;
 
 static unsigned long nfs_read_attr_generation_counter(void)
@@ -1428,7 +1421,6 @@ static int nfs_inode_attrs_need_update(const struct inode *inode, const struct n
 	const struct nfs_inode *nfsi = NFS_I(inode);
 
 	return ((long)fattr->gencount - (long)nfsi->attr_gencount) > 0 ||
-		nfs_ctime_need_update(inode, fattr) ||
 		((long)nfsi->attr_gencount - (long)nfs_read_attr_generation_counter() > 0);
 }
 
@@ -1491,6 +1483,13 @@ static int nfs_post_op_update_inode_locked(struct inode *inode, struct nfs_fattr
 {
 	unsigned long invalid = NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
 
+	/*
+	 * Don't revalidate the pagecache if we hold a delegation, but do
+	 * force an attribute update
+	 */
+	if (NFS_PROTO(inode)->have_delegation(inode, FMODE_READ))
+		invalid = NFS_INO_INVALID_ATTR|NFS_INO_REVAL_FORCED;
+
 	if (S_ISDIR(inode->i_mode))
 		invalid |= NFS_INO_INVALID_DATA;
 	nfs_set_cache_invalid(inode, invalid);
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 9b372b845..1dad18105 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -490,6 +490,9 @@ void nfs_retry_commit(struct list_head *page_list,
 void nfs_commitdata_release(struct nfs_commit_data *data);
 void nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
 				 struct nfs_commit_info *cinfo);
+void nfs_request_add_commit_list_locked(struct nfs_page *req,
+		struct list_head *dst,
+		struct nfs_commit_info *cinfo);
 void nfs_request_remove_commit_list(struct nfs_page *req,
 				    struct nfs_commit_info *cinfo);
 void nfs_init_cinfo(struct nfs_commit_info *cinfo,
@@ -623,13 +626,15 @@ void nfs_super_set_maxbytes(struct super_block *sb, __u64 maxfilesize)
  * Record the page as unstable and mark its inode as dirty.
  */
 static inline
-void nfs_mark_page_unstable(struct page *page)
+void nfs_mark_page_unstable(struct page *page, struct nfs_commit_info *cinfo)
 {
-	struct inode *inode = page_file_mapping(page)->host;
+	if (!cinfo->dreq) {
+		struct inode *inode = page_file_mapping(page)->host;
 
-	inc_zone_page_state(page, NR_UNSTABLE_NFS);
-	inc_wb_stat(&inode_to_bdi(inode)->wb, WB_RECLAIMABLE);
-	 __mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+		inc_zone_page_state(page, NR_UNSTABLE_NFS);
+		inc_wb_stat(&inode_to_bdi(inode)->wb, WB_RECLAIMABLE);
+		__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
+	}
 }
 
 /*
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 3acb1eb72..73c8204ad 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1156,6 +1156,8 @@ static int can_open_delegated(struct nfs_delegation *delegation, fmode_t fmode)
 		return 0;
 	if ((delegation->type & fmode) != fmode)
 		return 0;
+	if (test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags))
+		return 0;
 	if (test_bit(NFS_DELEGATION_RETURNING, &delegation->flags))
 		return 0;
 	nfs_mark_delegation_referenced(delegation);
@@ -1220,6 +1222,7 @@ static void nfs_resync_open_stateid_locked(struct nfs4_state *state)
 }
 
 static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
+		nfs4_stateid *arg_stateid,
 		nfs4_stateid *stateid, fmode_t fmode)
 {
 	clear_bit(NFS_O_RDWR_STATE, &state->flags);
@@ -1238,8 +1241,9 @@ static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
 	if (stateid == NULL)
 		return;
 	/* Handle races with OPEN */
-	if (!nfs4_stateid_match_other(stateid, &state->open_stateid) ||
-	    !nfs4_stateid_is_newer(stateid, &state->open_stateid)) {
+	if (!nfs4_stateid_match_other(arg_stateid, &state->open_stateid) ||
+	    (nfs4_stateid_match_other(stateid, &state->open_stateid) &&
+	    !nfs4_stateid_is_newer(stateid, &state->open_stateid))) {
 		nfs_resync_open_stateid_locked(state);
 		return;
 	}
@@ -1248,10 +1252,12 @@ static void nfs_clear_open_stateid_locked(struct nfs4_state *state,
 	nfs4_stateid_copy(&state->open_stateid, stateid);
 }
 
-static void nfs_clear_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode)
+static void nfs_clear_open_stateid(struct nfs4_state *state,
+	nfs4_stateid *arg_stateid,
+	nfs4_stateid *stateid, fmode_t fmode)
 {
 	write_seqlock(&state->seqlock);
-	nfs_clear_open_stateid_locked(state, stateid, fmode);
+	nfs_clear_open_stateid_locked(state, arg_stateid, stateid, fmode);
 	write_sequnlock(&state->seqlock);
 	if (test_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags))
 		nfs4_schedule_state_manager(state->owner->so_server->nfs_client);
@@ -2425,7 +2431,7 @@ static int _nfs4_do_open(struct inode *dir,
 		goto err_free_label;
 	state = ctx->state;
 
-	if ((opendata->o_arg.open_flags & O_EXCL) &&
+	if ((opendata->o_arg.open_flags & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL) &&
 	    (opendata->o_arg.createmode != NFS4_CREATE_GUARDED)) {
 		nfs4_exclusive_attrset(opendata, sattr);
 
@@ -2684,7 +2690,8 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
 				goto out_release;
 			}
 	}
-	nfs_clear_open_stateid(state, res_stateid, calldata->arg.fmode);
+	nfs_clear_open_stateid(state, &calldata->arg.stateid,
+			res_stateid, calldata->arg.fmode);
 out_release:
 	nfs_release_seqid(calldata->arg.seqid);
 	nfs_refresh_inode(calldata->inode, calldata->res.fattr);
@@ -4984,7 +4991,7 @@ nfs4_init_nonuniform_client_string(struct nfs_client *clp)
 		return 0;
 retry:
 	rcu_read_lock();
-	len = 10 + strlen(clp->cl_ipaddr) + 1 +
+	len = 14 + strlen(clp->cl_ipaddr) + 1 +
 		strlen(rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_ADDR)) +
 		1 +
 		strlen(rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_PROTO)) +
@@ -8661,6 +8668,7 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
 	.reboot_recovery_ops = &nfs41_reboot_recovery_ops,
 	.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
 	.state_renewal_ops = &nfs41_state_renewal_ops,
+	.mig_recovery_ops = &nfs41_mig_recovery_ops,
 };
 #endif
 
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 4984bbe55..7c5718ba6 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -77,8 +77,8 @@ EXPORT_SYMBOL_GPL(nfs_pgheader_init);
 void nfs_set_pgio_error(struct nfs_pgio_header *hdr, int error, loff_t pos)
 {
 	spin_lock(&hdr->lock);
-	if (pos < hdr->io_start + hdr->good_bytes) {
-		set_bit(NFS_IOHDR_ERROR, &hdr->flags);
+	if (!test_and_set_bit(NFS_IOHDR_ERROR, &hdr->flags)
+	    || pos < hdr->io_start + hdr->good_bytes) {
 		clear_bit(NFS_IOHDR_EOF, &hdr->flags);
 		hdr->good_bytes = pos - hdr->io_start;
 		hdr->error = error;
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index f37e25b63..e5c679f04 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -359,26 +359,31 @@ same_sockaddr(struct sockaddr *addr1, struct sockaddr *addr2)
 	return false;
 }
 
+/*
+ * Checks if 'dsaddrs1' contains a subset of 'dsaddrs2'. If it does,
+ * declare a match.
+ */
 static bool
 _same_data_server_addrs_locked(const struct list_head *dsaddrs1,
 			       const struct list_head *dsaddrs2)
 {
 	struct nfs4_pnfs_ds_addr *da1, *da2;
-
-	/* step through both lists, comparing as we go */
-	for (da1 = list_first_entry(dsaddrs1, typeof(*da1), da_node),
-	     da2 = list_first_entry(dsaddrs2, typeof(*da2), da_node);
-	     da1 != NULL && da2 != NULL;
-	     da1 = list_entry(da1->da_node.next, typeof(*da1), da_node),
-	     da2 = list_entry(da2->da_node.next, typeof(*da2), da_node)) {
-		if (!same_sockaddr((struct sockaddr *)&da1->da_addr,
-				   (struct sockaddr *)&da2->da_addr))
-			return false;
+	struct sockaddr *sa1, *sa2;
+	bool match = false;
+
+	list_for_each_entry(da1, dsaddrs1, da_node) {
+		sa1 = (struct sockaddr *)&da1->da_addr;
+		match = false;
+		list_for_each_entry(da2, dsaddrs2, da_node) {
+			sa2 = (struct sockaddr *)&da2->da_addr;
+			match = same_sockaddr(sa1, sa2);
+			if (match)
+				break;
+		}
+		if (!match)
+			break;
 	}
-	if (da1 == NULL && da2 == NULL)
-		return true;
-
-	return false;
+	return match;
 }
 
 /*
@@ -863,9 +868,10 @@ pnfs_layout_mark_request_commit(struct nfs_page *req,
 	}
 	set_bit(PG_COMMIT_TO_DS, &req->wb_flags);
 	cinfo->ds->nwritten++;
-	spin_unlock(cinfo->lock);
 
-	nfs_request_add_commit_list(req, list, cinfo);
+	nfs_request_add_commit_list_locked(req, list, cinfo);
+	spin_unlock(cinfo->lock);
+	nfs_mark_page_unstable(req->wb_page, cinfo);
 }
 EXPORT_SYMBOL_GPL(pnfs_layout_mark_request_commit);
 
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 75a35a1af..fdee9270c 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -768,6 +768,28 @@ nfs_page_search_commits_for_head_request_locked(struct nfs_inode *nfsi,
 }
 
 /**
+ * nfs_request_add_commit_list_locked - add request to a commit list
+ * @req: pointer to a struct nfs_page
+ * @dst: commit list head
+ * @cinfo: holds list lock and accounting info
+ *
+ * This sets the PG_CLEAN bit, updates the cinfo count of
+ * number of outstanding requests requiring a commit as well as
+ * the MM page stats.
+ *
+ * The caller must hold the cinfo->lock, and the nfs_page lock.
+ */
+void
+nfs_request_add_commit_list_locked(struct nfs_page *req, struct list_head *dst,
+			    struct nfs_commit_info *cinfo)
+{
+	set_bit(PG_CLEAN, &req->wb_flags);
+	nfs_list_add_request(req, dst);
+	cinfo->mds->ncommit++;
+}
+EXPORT_SYMBOL_GPL(nfs_request_add_commit_list_locked);
+
+/**
  * nfs_request_add_commit_list - add request to a commit list
  * @req: pointer to a struct nfs_page
  * @dst: commit list head
@@ -784,13 +806,10 @@ void
 nfs_request_add_commit_list(struct nfs_page *req, struct list_head *dst,
 			    struct nfs_commit_info *cinfo)
 {
-	set_bit(PG_CLEAN, &(req)->wb_flags);
 	spin_lock(cinfo->lock);
-	nfs_list_add_request(req, dst);
-	cinfo->mds->ncommit++;
+	nfs_request_add_commit_list_locked(req, dst, cinfo);
 	spin_unlock(cinfo->lock);
-	if (!cinfo->dreq)
-		nfs_mark_page_unstable(req->wb_page);
+	nfs_mark_page_unstable(req->wb_page, cinfo);
 }
 EXPORT_SYMBOL_GPL(nfs_request_add_commit_list);
 
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 95202719a..75189cd34 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -777,13 +777,16 @@ hash_delegation_locked(struct nfs4_delegation *dp, struct nfs4_file *fp)
 	list_add(&dp->dl_perclnt, &dp->dl_stid.sc_client->cl_delegations);
 }
 
-static void
+static bool
 unhash_delegation_locked(struct nfs4_delegation *dp)
 {
 	struct nfs4_file *fp = dp->dl_stid.sc_file;
 
 	lockdep_assert_held(&state_lock);
 
+	if (list_empty(&dp->dl_perfile))
+		return false;
+
 	dp->dl_stid.sc_type = NFS4_CLOSED_DELEG_STID;
 	/* Ensure that deleg break won't try to requeue it */
 	++dp->dl_time;
@@ -792,16 +795,21 @@ unhash_delegation_locked(struct nfs4_delegation *dp)
 	list_del_init(&dp->dl_recall_lru);
 	list_del_init(&dp->dl_perfile);
 	spin_unlock(&fp->fi_lock);
+	return true;
 }
 
 static void destroy_delegation(struct nfs4_delegation *dp)
 {
+	bool unhashed;
+
 	spin_lock(&state_lock);
-	unhash_delegation_locked(dp);
+	unhashed = unhash_delegation_locked(dp);
 	spin_unlock(&state_lock);
-	put_clnt_odstate(dp->dl_clnt_odstate);
-	nfs4_put_deleg_lease(dp->dl_stid.sc_file);
-	nfs4_put_stid(&dp->dl_stid);
+	if (unhashed) {
+		put_clnt_odstate(dp->dl_clnt_odstate);
+		nfs4_put_deleg_lease(dp->dl_stid.sc_file);
+		nfs4_put_stid(&dp->dl_stid);
+	}
 }
 
 static void revoke_delegation(struct nfs4_delegation *dp)
@@ -1004,16 +1012,20 @@ static void nfs4_put_stateowner(struct nfs4_stateowner *sop)
 	sop->so_ops->so_free(sop);
 }
 
-static void unhash_ol_stateid(struct nfs4_ol_stateid *stp)
+static bool unhash_ol_stateid(struct nfs4_ol_stateid *stp)
 {
 	struct nfs4_file *fp = stp->st_stid.sc_file;
 
 	lockdep_assert_held(&stp->st_stateowner->so_client->cl_lock);
 
+	if (list_empty(&stp->st_perfile))
+		return false;
+
 	spin_lock(&fp->fi_lock);
-	list_del(&stp->st_perfile);
+	list_del_init(&stp->st_perfile);
 	spin_unlock(&fp->fi_lock);
 	list_del(&stp->st_perstateowner);
+	return true;
 }
 
 static void nfs4_free_ol_stateid(struct nfs4_stid *stid)
@@ -1063,25 +1075,27 @@ static void put_ol_stateid_locked(struct nfs4_ol_stateid *stp,
 	list_add(&stp->st_locks, reaplist);
 }
 
-static void unhash_lock_stateid(struct nfs4_ol_stateid *stp)
+static bool unhash_lock_stateid(struct nfs4_ol_stateid *stp)
 {
 	struct nfs4_openowner *oo = openowner(stp->st_openstp->st_stateowner);
 
 	lockdep_assert_held(&oo->oo_owner.so_client->cl_lock);
 
 	list_del_init(&stp->st_locks);
-	unhash_ol_stateid(stp);
 	nfs4_unhash_stid(&stp->st_stid);
+	return unhash_ol_stateid(stp);
 }
 
 static void release_lock_stateid(struct nfs4_ol_stateid *stp)
 {
 	struct nfs4_openowner *oo = openowner(stp->st_openstp->st_stateowner);
+	bool unhashed;
 
 	spin_lock(&oo->oo_owner.so_client->cl_lock);
-	unhash_lock_stateid(stp);
+	unhashed = unhash_lock_stateid(stp);
 	spin_unlock(&oo->oo_owner.so_client->cl_lock);
-	nfs4_put_stid(&stp->st_stid);
+	if (unhashed)
+		nfs4_put_stid(&stp->st_stid);
 }
 
 static void unhash_lockowner_locked(struct nfs4_lockowner *lo)
@@ -1129,7 +1143,7 @@ static void release_lockowner(struct nfs4_lockowner *lo)
 	while (!list_empty(&lo->lo_owner.so_stateids)) {
 		stp = list_first_entry(&lo->lo_owner.so_stateids,
 				struct nfs4_ol_stateid, st_perstateowner);
-		unhash_lock_stateid(stp);
+		WARN_ON(!unhash_lock_stateid(stp));
 		put_ol_stateid_locked(stp, &reaplist);
 	}
 	spin_unlock(&clp->cl_lock);
@@ -1142,21 +1156,26 @@ static void release_open_stateid_locks(struct nfs4_ol_stateid *open_stp,
 {
 	struct nfs4_ol_stateid *stp;
 
+	lockdep_assert_held(&open_stp->st_stid.sc_client->cl_lock);
+
 	while (!list_empty(&open_stp->st_locks)) {
 		stp = list_entry(open_stp->st_locks.next,
 				struct nfs4_ol_stateid, st_locks);
-		unhash_lock_stateid(stp);
+		WARN_ON(!unhash_lock_stateid(stp));
 		put_ol_stateid_locked(stp, reaplist);
 	}
 }
 
-static void unhash_open_stateid(struct nfs4_ol_stateid *stp,
+static bool unhash_open_stateid(struct nfs4_ol_stateid *stp,
 				struct list_head *reaplist)
 {
+	bool unhashed;
+
 	lockdep_assert_held(&stp->st_stid.sc_client->cl_lock);
 
-	unhash_ol_stateid(stp);
+	unhashed = unhash_ol_stateid(stp);
 	release_open_stateid_locks(stp, reaplist);
+	return unhashed;
 }
 
 static void release_open_stateid(struct nfs4_ol_stateid *stp)
@@ -1164,8 +1183,8 @@ static void release_open_stateid(struct nfs4_ol_stateid *stp)
 	LIST_HEAD(reaplist);
 
 	spin_lock(&stp->st_stid.sc_client->cl_lock);
-	unhash_open_stateid(stp, &reaplist);
-	put_ol_stateid_locked(stp, &reaplist);
+	if (unhash_open_stateid(stp, &reaplist))
+		put_ol_stateid_locked(stp, &reaplist);
 	spin_unlock(&stp->st_stid.sc_client->cl_lock);
 	free_ol_stateid_reaplist(&reaplist);
 }
@@ -1210,8 +1229,8 @@ static void release_openowner(struct nfs4_openowner *oo)
 	while (!list_empty(&oo->oo_owner.so_stateids)) {
 		stp = list_first_entry(&oo->oo_owner.so_stateids,
 				struct nfs4_ol_stateid, st_perstateowner);
-		unhash_open_stateid(stp, &reaplist);
-		put_ol_stateid_locked(stp, &reaplist);
+		if (unhash_open_stateid(stp, &reaplist))
+			put_ol_stateid_locked(stp, &reaplist);
 	}
 	spin_unlock(&clp->cl_lock);
 	free_ol_stateid_reaplist(&reaplist);
@@ -1714,7 +1733,7 @@ __destroy_client(struct nfs4_client *clp)
 	spin_lock(&state_lock);
 	while (!list_empty(&clp->cl_delegations)) {
 		dp = list_entry(clp->cl_delegations.next, struct nfs4_delegation, dl_perclnt);
-		unhash_delegation_locked(dp);
+		WARN_ON(!unhash_delegation_locked(dp));
 		list_add(&dp->dl_recall_lru, &reaplist);
 	}
 	spin_unlock(&state_lock);
@@ -4345,7 +4364,7 @@ nfs4_laundromat(struct nfsd_net *nn)
 			new_timeo = min(new_timeo, t);
 			break;
 		}
-		unhash_delegation_locked(dp);
+		WARN_ON(!unhash_delegation_locked(dp));
 		list_add(&dp->dl_recall_lru, &reaplist);
 	}
 	spin_unlock(&state_lock);
@@ -4751,7 +4770,7 @@ nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 		if (check_for_locks(stp->st_stid.sc_file,
 				    lockowner(stp->st_stateowner)))
 			break;
-		unhash_lock_stateid(stp);
+		WARN_ON(!unhash_lock_stateid(stp));
 		spin_unlock(&cl->cl_lock);
 		nfs4_put_stid(s);
 		ret = nfs_ok;
@@ -4967,20 +4986,23 @@ out:
 static void nfsd4_close_open_stateid(struct nfs4_ol_stateid *s)
 {
 	struct nfs4_client *clp = s->st_stid.sc_client;
+	bool unhashed;
 	LIST_HEAD(reaplist);
 
 	s->st_stid.sc_type = NFS4_CLOSED_STID;
 	spin_lock(&clp->cl_lock);
-	unhash_open_stateid(s, &reaplist);
+	unhashed = unhash_open_stateid(s, &reaplist);
 
 	if (clp->cl_minorversion) {
-		put_ol_stateid_locked(s, &reaplist);
+		if (unhashed)
+			put_ol_stateid_locked(s, &reaplist);
 		spin_unlock(&clp->cl_lock);
 		free_ol_stateid_reaplist(&reaplist);
 	} else {
 		spin_unlock(&clp->cl_lock);
 		free_ol_stateid_reaplist(&reaplist);
-		move_to_close_lru(s, clp->net);
+		if (unhashed)
+			move_to_close_lru(s, clp->net);
 	}
 }
 
@@ -6019,7 +6041,7 @@ nfsd_inject_add_lock_to_list(struct nfs4_ol_stateid *lst,
 
 static u64 nfsd_foreach_client_lock(struct nfs4_client *clp, u64 max,
 				    struct list_head *collect,
-				    void (*func)(struct nfs4_ol_stateid *))
+				    bool (*func)(struct nfs4_ol_stateid *))
 {
 	struct nfs4_openowner *oop;
 	struct nfs4_ol_stateid *stp, *st_next;
@@ -6033,9 +6055,9 @@ static u64 nfsd_foreach_client_lock(struct nfs4_client *clp, u64 max,
 			list_for_each_entry_safe(lst, lst_next,
 					&stp->st_locks, st_locks) {
 				if (func) {
-					func(lst);
-					nfsd_inject_add_lock_to_list(lst,
-								collect);
+					if (func(lst))
+						nfsd_inject_add_lock_to_list(lst,
+									collect);
 				}
 				++count;
 				/*
@@ -6305,7 +6327,7 @@ static u64 nfsd_find_all_delegations(struct nfs4_client *clp, u64 max,
 				continue;
 
 			atomic_inc(&clp->cl_refcount);
-			unhash_delegation_locked(dp);
+			WARN_ON(!unhash_delegation_locked(dp));
 			list_add(&dp->dl_recall_lru, victims);
 		}
 		++count;
@@ -6635,7 +6657,7 @@ nfs4_state_shutdown_net(struct net *net)
 	spin_lock(&state_lock);
 	list_for_each_safe(pos, next, &nn->del_recall_lru) {
 		dp = list_entry (pos, struct nfs4_delegation, dl_recall_lru);
-		unhash_delegation_locked(dp);
+		WARN_ON(!unhash_delegation_locked(dp));
 		list_add(&dp->dl_recall_lru, &reaplist);
 	}
 	spin_unlock(&state_lock);
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 75e0563c0..b81f725ee 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2140,6 +2140,27 @@ nfsd4_encode_aclname(struct xdr_stream *xdr, struct svc_rqst *rqstp,
 		return nfsd4_encode_user(xdr, rqstp, ace->who_uid);
 }
 
+static inline __be32
+nfsd4_encode_layout_type(struct xdr_stream *xdr, enum pnfs_layouttype layout_type)
+{
+	__be32 *p;
+
+	if (layout_type) {
+		p = xdr_reserve_space(xdr, 8);
+		if (!p)
+			return nfserr_resource;
+		*p++ = cpu_to_be32(1);
+		*p++ = cpu_to_be32(layout_type);
+	} else {
+		p = xdr_reserve_space(xdr, 4);
+		if (!p)
+			return nfserr_resource;
+		*p++ = cpu_to_be32(0);
+	}
+
+	return 0;
+}
+
 #define WORD0_ABSENT_FS_ATTRS (FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_FSID | \
 			      FATTR4_WORD0_RDATTR_ERROR)
 #define WORD1_ABSENT_FS_ATTRS FATTR4_WORD1_MOUNTED_ON_FILEID
@@ -2688,20 +2709,16 @@ out_acl:
 		p = xdr_encode_hyper(p, stat.ino);
 	}
 #ifdef CONFIG_NFSD_PNFS
-	if ((bmval1 & FATTR4_WORD1_FS_LAYOUT_TYPES) ||
-	    (bmval2 & FATTR4_WORD2_LAYOUT_TYPES)) {
-		if (exp->ex_layout_type) {
-			p = xdr_reserve_space(xdr, 8);
-			if (!p)
-				goto out_resource;
-			*p++ = cpu_to_be32(1);
-			*p++ = cpu_to_be32(exp->ex_layout_type);
-		} else {
-			p = xdr_reserve_space(xdr, 4);
-			if (!p)
-				goto out_resource;
-			*p++ = cpu_to_be32(0);
-		}
+	if (bmval1 & FATTR4_WORD1_FS_LAYOUT_TYPES) {
+		status = nfsd4_encode_layout_type(xdr, exp->ex_layout_type);
+		if (status)
+			goto out;
+	}
+
+	if (bmval2 & FATTR4_WORD2_LAYOUT_TYPES) {
+		status = nfsd4_encode_layout_type(xdr, exp->ex_layout_type);
+		if (status)
+			goto out;
 	}
 
 	if (bmval2 & FATTR4_WORD2_LAYOUT_BLKSIZE) {