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| author | Ian Kent <raven@themaw.net> | 2009-12-15 16:45:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 07:19:57 -0800 |
| commit | c4cd70b3e3e95cc2201a00edf6deb52327d73c6b (patch) | |
| tree | 20150b87f5fdc0915db45937f727fd9e1aee0c74 /fs/autofs4 | |
| parent | 4f8427d1903148f9753eb35c5f51a8a865457329 (diff) | |
| download | kernel-common-c4cd70b3e3e95cc2201a00edf6deb52327d73c6b.tar.gz kernel-common-c4cd70b3e3e95cc2201a00edf6deb52327d73c6b.tar.bz2 kernel-common-c4cd70b3e3e95cc2201a00edf6deb52327d73c6b.zip | |
autofs4: use helper functions for expiring list
Define some simple helper functions for adding and deleting entries on the
expiring dentry list.
Signed-off-by: Ian Kent <raven@themaw.net>
Cc: Sage Weil <sage@newdream.net>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Andreas Dilger <adilger@sun.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Yehuda Saheh <yehuda@newdream.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/autofs4')
| -rw-r--r-- | fs/autofs4/autofs_i.h | 26 | ||||
| -rw-r--r-- | fs/autofs4/root.c | 15 |
2 files changed, 29 insertions, 12 deletions
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h index f3cf151a59e3..fe9fc235ee75 100644 --- a/fs/autofs4/autofs_i.h +++ b/fs/autofs4/autofs_i.h @@ -266,5 +266,31 @@ out: return ret; } +static inline void autofs4_add_expiring(struct dentry *dentry) +{ + struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb); + struct autofs_info *ino = autofs4_dentry_ino(dentry); + if (ino) { + spin_lock(&sbi->lookup_lock); + if (list_empty(&ino->expiring)) + list_add(&ino->expiring, &sbi->expiring_list); + spin_unlock(&sbi->lookup_lock); + } + return; +} + +static inline void autofs4_del_expiring(struct dentry *dentry) +{ + struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb); + struct autofs_info *ino = autofs4_dentry_ino(dentry); + if (ino) { + spin_lock(&sbi->lookup_lock); + if (!list_empty(&ino->expiring)) + list_del_init(&ino->expiring); + spin_unlock(&sbi->lookup_lock); + } + return; +} + void autofs4_dentry_release(struct dentry *); extern void autofs4_kill_sb(struct super_block *); diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c index 67d8d962168d..2954ac5fec75 100644 --- a/fs/autofs4/root.c +++ b/fs/autofs4/root.c @@ -563,10 +563,7 @@ static struct dentry *autofs4_lookup(struct inode *dir, struct dentry *dentry, s */ ino = autofs4_dentry_ino(expiring); autofs4_expire_wait(expiring); - spin_lock(&sbi->lookup_lock); - if (!list_empty(&ino->expiring)) - list_del_init(&ino->expiring); - spin_unlock(&sbi->lookup_lock); + autofs4_del_expiring(expiring); dput(expiring); } @@ -732,10 +729,7 @@ static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry) dir->i_mtime = CURRENT_TIME; spin_lock(&dcache_lock); - spin_lock(&sbi->lookup_lock); - if (list_empty(&ino->expiring)) - list_add(&ino->expiring, &sbi->expiring_list); - spin_unlock(&sbi->lookup_lock); + autofs4_add_expiring(dentry); spin_lock(&dentry->d_lock); __d_drop(dentry); spin_unlock(&dentry->d_lock); @@ -761,10 +755,7 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry) spin_unlock(&dcache_lock); return -ENOTEMPTY; } - spin_lock(&sbi->lookup_lock); - if (list_empty(&ino->expiring)) - list_add(&ino->expiring, &sbi->expiring_list); - spin_unlock(&sbi->lookup_lock); + autofs4_add_expiring(dentry); spin_lock(&dentry->d_lock); __d_drop(dentry); spin_unlock(&dentry->d_lock); |