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authorIan Kent <raven@themaw.net>2009-12-16 03:45:43 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 18:19:57 +0300
commitc4cd70b3e3e95cc2201a00edf6deb52327d73c6b (patch)
tree20150b87f5fdc0915db45937f727fd9e1aee0c74 /fs/autofs4
parent4f8427d1903148f9753eb35c5f51a8a865457329 (diff)
downloadlinux-c4cd70b3e3e95cc2201a00edf6deb52327d73c6b.tar.xz
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.h26
-rw-r--r--fs/autofs4/root.c15
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);