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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-19 08:23:53 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-19 08:23:53 -0800
commite93b1cc8a8965da137ffea0b88e5f62fa1d2a9e6 (patch)
tree9757e9167daff086a314b031429d9b65a39b96bc /include
parent45d36906e256fe9f8e976461b4c559722c3cbe2a (diff)
parent2700e6067c72a99d1b7037692da0145ac44623c4 (diff)
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull quota, fsnotify and ext2 updates from Jan Kara: "Changes to locking of some quota operations from dedicated quota mutex to s_umount semaphore, a fsnotify fix and a simple ext2 fix" * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: quota: Fix bogus warning in dquot_disable() fsnotify: Fix possible use-after-free in inode iteration on umount ext2: reject inodes with negative size quota: Remove dqonoff_mutex ocfs2: Use s_umount for quota recovery protection quota: Remove dqonoff_mutex from dquot_scan_active() ocfs2: Protect periodic quota syncing with s_umount semaphore quota: Use s_umount protection for quota operations quota: Hold s_umount in exclusive mode when enabling / disabling quotas fs: Provide function to get superblock with exclusive s_umount
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h2
-rw-r--r--include/linux/quota.h1
2 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e6e4146bf9ae..2ba074328894 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2903,8 +2903,10 @@ extern void put_filesystem(struct file_system_type *fs);
extern struct file_system_type *get_fs_type(const char *name);
extern struct super_block *get_super(struct block_device *);
extern struct super_block *get_super_thawed(struct block_device *);
+extern struct super_block *get_super_exclusive_thawed(struct block_device *bdev);
extern struct super_block *get_active_super(struct block_device *bdev);
extern void drop_super(struct super_block *sb);
+extern void drop_super_exclusive(struct super_block *sb);
extern void iterate_supers(void (*)(struct super_block *, void *), void *);
extern void iterate_supers_type(struct file_system_type *,
void (*)(struct super_block *, void *), void *);
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 78a98821f9d0..3434eef2a5aa 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -520,7 +520,6 @@ static inline void quota_send_warning(struct kqid qid, dev_t dev,
struct quota_info {
unsigned int flags; /* Flags for diskquotas on this device */
struct mutex dqio_mutex; /* lock device while I/O in progress */
- struct mutex dqonoff_mutex; /* Serialize quotaon & quotaoff */
struct inode *files[MAXQUOTAS]; /* inodes of quotafiles */
struct mem_dqinfo info[MAXQUOTAS]; /* Information for each quota type */
const struct quota_format_ops *ops[MAXQUOTAS]; /* Operations for each type */