diff options
| author |   Ian Kent <raven@themaw.net> | 2012-12-14 10:23:23 +0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-13 19:13:25 -0800 |
| commit | f55fb0c24386cee8b78f60d60186716bd0909493 (patch) | |
| tree | 5ca3ab6c4c94c33f99934891c681c280778fb1c8 /fs/autofs4/expire.c | |
| parent | Linux 3.7 (diff) | |
| download | linux-dev-f55fb0c24386cee8b78f60d60186716bd0909493.tar.xz linux-dev-f55fb0c24386cee8b78f60d60186716bd0909493.zip | |
autofs4 - dont clear DCACHE_NEED_AUTOMOUNT on rootless mount
The DCACHE_NEED_AUTOMOUNT flag is cleared on mount and set on expire
for autofs rootless multi-mount dentrys to prevent unnecessary calls
to ->d_automount().
Since DCACHE_MANAGE_TRANSIT is always set on autofs dentrys ->d_managed()
is always called so the check can be done in ->d_manage() without the
need to change the flag. This still avoids unnecessary calls to
->d_automount(), adds negligible overhead and eliminates a seriously
ugly check in the expire code.
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/autofs4/expire.c')
| -rw-r--r-- | fs/autofs4/expire.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index 842d00048a65..01443ce43ee7 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -548,15 +548,6 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt, spin_lock(&sbi->fs_lock); ino->flags &= ~AUTOFS_INF_EXPIRING; - spin_lock(&dentry->d_lock); - if (!ret) { - if ((IS_ROOT(dentry) || - (autofs_type_indirect(sbi->type) && - IS_ROOT(dentry->d_parent))) && - !(dentry->d_flags & DCACHE_NEED_AUTOMOUNT)) - __managed_dentry_set_automount(dentry); - } - spin_unlock(&dentry->d_lock); complete_all(&ino->expire_complete); spin_unlock(&sbi->fs_lock); dput(dentry); |