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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /fs/gfs2/quota.h
Initial import
Diffstat (limited to 'fs/gfs2/quota.h')
-rw-r--r--fs/gfs2/quota.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h
new file mode 100644
index 000000000..ad04b3aca
--- /dev/null
+++ b/fs/gfs2/quota.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License version 2.
+ */
+
+#ifndef __QUOTA_DOT_H__
+#define __QUOTA_DOT_H__
+
+#include <linux/list_lru.h>
+
+struct gfs2_inode;
+struct gfs2_sbd;
+
+#define NO_UID_QUOTA_CHANGE INVALID_UID
+#define NO_GID_QUOTA_CHANGE INVALID_GID
+
+extern int gfs2_quota_hold(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
+extern void gfs2_quota_unhold(struct gfs2_inode *ip);
+
+extern int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
+extern void gfs2_quota_unlock(struct gfs2_inode *ip);
+
+extern int gfs2_quota_check(struct gfs2_inode *ip, kuid_t uid, kgid_t gid,
+ struct gfs2_alloc_parms *ap);
+extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
+ kuid_t uid, kgid_t gid);
+
+extern int gfs2_quota_sync(struct super_block *sb, int type);
+extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid);
+
+extern int gfs2_quota_init(struct gfs2_sbd *sdp);
+extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
+extern int gfs2_quotad(void *data);
+
+extern void gfs2_wake_up_statfs(struct gfs2_sbd *sdp);
+
+static inline int gfs2_quota_lock_check(struct gfs2_inode *ip,
+ struct gfs2_alloc_parms *ap)
+{
+ struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+ int ret;
+ if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
+ return 0;
+ ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);
+ if (ret)
+ return ret;
+ if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
+ return 0;
+ ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid, ap);
+ if (ret)
+ gfs2_quota_unlock(ip);
+ return ret;
+}
+
+extern const struct quotactl_ops gfs2_quotactl_ops;
+extern struct shrinker gfs2_qd_shrinker;
+extern struct list_lru gfs2_qd_lru;
+extern void __init gfs2_quota_hash_init(void);
+
+#endif /* __QUOTA_DOT_H__ */