diff options
| author | Jan Kara <jack@suse.cz> | 2017-03-15 09:41:15 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2017-04-10 17:37:35 +0200 |
| commit | a03e2e4f078365428bb4317989cb5d1d6563cfe9 (patch) | |
| tree | daa8ada03fa6b829a06482cbda65ffd0da044421 /fs/notify | |
| parent | fsnotify: Move locking into fsnotify_find_mark() (diff) | |
| download | linux-a03e2e4f078365428bb4317989cb5d1d6563cfe9.tar.xz linux-a03e2e4f078365428bb4317989cb5d1d6563cfe9.zip | |
fsnotify: Determine lock in fsnotify_destroy_marks()
Instead of passing spinlock into fsnotify_destroy_marks() determine it
directly in that function from the connector type. This will reduce code
churn when changing lock protecting list of marks.
Reviewed-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/notify')
| -rw-r--r-- | fs/notify/fsnotify.h | 10 | ||||
| -rw-r--r-- | fs/notify/mark.c | 9 |
2 files changed, 11 insertions, 8 deletions
diff --git a/fs/notify/fsnotify.h b/fs/notify/fsnotify.h index 96051780d50e..225924274f8a 100644 --- a/fs/notify/fsnotify.h +++ b/fs/notify/fsnotify.h @@ -26,19 +26,17 @@ extern struct inode *fsnotify_destroy_inode_mark(struct fsnotify_mark *mark); extern struct fsnotify_mark *fsnotify_find_mark( struct fsnotify_mark_connector *conn, struct fsnotify_group *group); -/* Destroy all marks connected via given connector protected by 'lock' */ -extern void fsnotify_destroy_marks(struct fsnotify_mark_connector *conn, - spinlock_t *lock); +/* Destroy all marks connected via given connector */ +extern void fsnotify_destroy_marks(struct fsnotify_mark_connector *conn); /* run the list of all marks associated with inode and destroy them */ static inline void fsnotify_clear_marks_by_inode(struct inode *inode) { - fsnotify_destroy_marks(inode->i_fsnotify_marks, &inode->i_lock); + fsnotify_destroy_marks(inode->i_fsnotify_marks); } /* run the list of all marks associated with vfsmount and destroy them */ static inline void fsnotify_clear_marks_by_mount(struct vfsmount *mnt) { - fsnotify_destroy_marks(real_mount(mnt)->mnt_fsnotify_marks, - &mnt->mnt_root->d_lock); + fsnotify_destroy_marks(real_mount(mnt)->mnt_fsnotify_marks); } /* prepare for freeing all marks associated with given group */ extern void fsnotify_detach_group_marks(struct fsnotify_group *group); diff --git a/fs/notify/mark.c b/fs/notify/mark.c index 0830e0af997a..f32ca924c44e 100644 --- a/fs/notify/mark.c +++ b/fs/notify/mark.c @@ -572,14 +572,19 @@ void fsnotify_detach_group_marks(struct fsnotify_group *group) } } -void fsnotify_destroy_marks(struct fsnotify_mark_connector *conn, - spinlock_t *lock) +void fsnotify_destroy_marks(struct fsnotify_mark_connector *conn) { struct fsnotify_mark *mark; + spinlock_t *lock; if (!conn) return; + if (conn->flags & FSNOTIFY_OBJ_TYPE_INODE) + lock = &conn->inode->i_lock; + else + lock = &conn->mnt->mnt_root->d_lock; + while (1) { /* * We have to be careful since we can race with e.g. |