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| author | Jan Kara <jack@suse.cz> | 2017-02-01 09:21:58 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2017-04-10 17:37:35 +0200 |
| commit | 08991e83b7286635167bab40927665a90fb00d81 (patch) | |
| tree | e82e62c0a92193ff3af83d3d1ea60f0430c5c118 /fs/namespace.c | |
| parent | 04662cab59fc3e8421fd7a0539d304d51d2750a4 (diff) | |
| download | lwn-08991e83b7286635167bab40927665a90fb00d81.tar.gz lwn-08991e83b7286635167bab40927665a90fb00d81.zip | |
fsnotify: Free fsnotify_mark_connector when there is no mark attached
Currently we free fsnotify_mark_connector structure only when inode /
vfsmount is getting freed. This can however impose noticeable memory
overhead when marks get attached to inodes only temporarily. So free the
connector structure once the last mark is detached from the object.
Since notification infrastructure can be working with the connector
under the protection of fsnotify_mark_srcu, we have to be careful and
free the fsnotify_mark_connector only after SRCU period passes.
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/namespace.c')
| -rw-r--r-- | fs/namespace.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/namespace.c b/fs/namespace.c index 2625e1d97a3a..b3b115bd4e1e 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -1108,9 +1108,6 @@ static void cleanup_mnt(struct mount *mnt) if (unlikely(mnt->mnt_pins.first)) mnt_pin_kill(mnt); fsnotify_vfsmount_delete(&mnt->mnt); -#ifdef CONFIG_FSNOTIFY - fsnotify_connector_free(&mnt->mnt_fsnotify_marks); -#endif dput(mnt->mnt.mnt_root); deactivate_super(mnt->mnt.mnt_sb); mnt_free_id(mnt); |