diff options
| author | Jan Kara <jack@suse.cz> | 2016-12-21 14:48:18 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2017-04-10 17:37:36 +0200 |
| commit | f09b04a03e0239f65bd964a1de758e53cf6349e8 (patch) | |
| tree | dc8f9b75eb2f98fee22d48e516a3734035868c69 /fs/notify/group.c | |
| parent | fsnotify: Detach mark from object list when last reference is dropped (diff) | |
| download | linux-f09b04a03e0239f65bd964a1de758e53cf6349e8.tar.xz linux-f09b04a03e0239f65bd964a1de758e53cf6349e8.zip | |
fsnotify: Remove special handling of mark destruction on group shutdown
Currently we queue all marks for destruction on group shutdown and then
destroy them from fsnotify_destroy_group() instead from a worker thread
which is the usual path. However worker can already be processing some
list of marks to destroy so this does not make 100% all marks are really
destroyed by the time group is shut down. This isn't a big problem as
each mark holds group reference and thus group stays partially alive
until all marks are really freed but there's no point in complicating
our lives - just wait for the delayed work to be finished instead.
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/group.c')
| -rw-r--r-- | fs/notify/group.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/notify/group.c b/fs/notify/group.c index fbe3cbebec16..0fb4aadcc19f 100644 --- a/fs/notify/group.c +++ b/fs/notify/group.c @@ -66,14 +66,16 @@ void fsnotify_destroy_group(struct fsnotify_group *group) */ fsnotify_group_stop_queueing(group); - /* clear all inode marks for this group, attach them to destroy_list */ + /* Clear all marks for this group and queue them for destruction */ fsnotify_detach_group_marks(group); /* - * Wait for fsnotify_mark_srcu period to end and free all marks in - * destroy_list + * Wait until all marks get really destroyed. We could actually destroy + * them ourselves instead of waiting for worker to do it, however that + * would be racy as worker can already be processing some marks before + * we even entered fsnotify_destroy_group(). */ - fsnotify_mark_destroy_list(); + fsnotify_wait_marks_destroyed(); /* * Since we have waited for fsnotify_mark_srcu in |