diff options
| author | Ian Kent <raven@themaw.net> | 2008-07-24 06:30:28 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-24 19:47:32 +0200 |
| commit | 06a3598552dc3b2b30eb18bd53bbac2a901489d7 (patch) | |
| tree | bb209268deac3b12d63d07c67a76ba10561f6a11 /fs/autofs4/expire.c | |
| parent | autofs4: fix direct mount pending expire race - correction (diff) | |
| download | linux-06a3598552dc3b2b30eb18bd53bbac2a901489d7.tar.xz linux-06a3598552dc3b2b30eb18bd53bbac2a901489d7.zip | |
autofs4: reorganize expire pending wait function calls
This patch re-orgnirzes the checking for and waiting on active expires and
elininates redundant checks.
Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/autofs4/expire.c')
| -rw-r--r-- | fs/autofs4/expire.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index 705b9f057fb3..cdabb796ff01 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -402,6 +402,35 @@ found: return expired; } +int autofs4_expire_wait(struct dentry *dentry) +{ + struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb); + struct autofs_info *ino = autofs4_dentry_ino(dentry); + int status; + + /* Block on any pending expire */ + spin_lock(&sbi->fs_lock); + if (ino->flags & AUTOFS_INF_EXPIRING) { + spin_unlock(&sbi->fs_lock); + + DPRINTK("waiting for expire %p name=%.*s", + dentry, dentry->d_name.len, dentry->d_name.name); + + status = autofs4_wait(sbi, dentry, NFY_NONE); + wait_for_completion(&ino->expire_complete); + + DPRINTK("expire done status=%d", status); + + if (d_unhashed(dentry)) + return -EAGAIN; + + return status; + } + spin_unlock(&sbi->fs_lock); + + return 0; +} + /* Perform an expiry operation */ int autofs4_expire_run(struct super_block *sb, struct vfsmount *mnt, |