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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-10-29 13:45:54 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-10-29 13:45:54 -0300
commita71852147516bc1cb5b0b3cbd13639bfd4022dc8 (patch)
treee1950ad489b1cc9f4404c643d94ff87ba595a8c1 /fs/btrfs
parentbadc0e42604c4465facd81d2323e98b3b1eb9188 (diff)
Linux-libre 4.2.5-gnupck-4.2.5-gnu
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/backref.c8
-rw-r--r--fs/btrfs/ioctl.c5
-rw-r--r--fs/btrfs/volumes.h8
3 files changed, 16 insertions, 5 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 802fabb30..34cbe3505 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1809,7 +1809,6 @@ static int iterate_inode_extrefs(u64 inum, struct btrfs_root *fs_root,
int found = 0;
struct extent_buffer *eb;
struct btrfs_inode_extref *extref;
- struct extent_buffer *leaf;
u32 item_size;
u32 cur_offset;
unsigned long ptr;
@@ -1837,9 +1836,8 @@ static int iterate_inode_extrefs(u64 inum, struct btrfs_root *fs_root,
btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
btrfs_release_path(path);
- leaf = path->nodes[0];
- item_size = btrfs_item_size_nr(leaf, slot);
- ptr = btrfs_item_ptr_offset(leaf, slot);
+ item_size = btrfs_item_size_nr(eb, slot);
+ ptr = btrfs_item_ptr_offset(eb, slot);
cur_offset = 0;
while (cur_offset < item_size) {
@@ -1853,7 +1851,7 @@ static int iterate_inode_extrefs(u64 inum, struct btrfs_root *fs_root,
if (ret)
break;
- cur_offset += btrfs_inode_extref_name_len(leaf, extref);
+ cur_offset += btrfs_inode_extref_name_len(eb, extref);
cur_offset += sizeof(*extref);
}
btrfs_tree_read_unlock_blocking(eb);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0770c9158..f490b6155 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -4647,6 +4647,11 @@ locked:
bctl->flags |= BTRFS_BALANCE_TYPE_MASK;
}
+ if (bctl->flags & ~(BTRFS_BALANCE_ARGS_MASK | BTRFS_BALANCE_TYPE_MASK)) {
+ ret = -EINVAL;
+ goto out_bargs;
+ }
+
do_balance:
/*
* Ownership of bctl and mutually_exclusive_operation_running
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 95842a909..2ac5f8cd7 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -376,6 +376,14 @@ struct map_lookup {
#define BTRFS_BALANCE_ARGS_VRANGE (1ULL << 4)
#define BTRFS_BALANCE_ARGS_LIMIT (1ULL << 5)
+#define BTRFS_BALANCE_ARGS_MASK \
+ (BTRFS_BALANCE_ARGS_PROFILES | \
+ BTRFS_BALANCE_ARGS_USAGE | \
+ BTRFS_BALANCE_ARGS_DEVID | \
+ BTRFS_BALANCE_ARGS_DRANGE | \
+ BTRFS_BALANCE_ARGS_VRANGE | \
+ BTRFS_BALANCE_ARGS_LIMIT)
+
/*
* Profile changing flags. When SOFT is set we won't relocate chunk if
* it already has the target profile (even though it may be