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authorAl Viro <viro@zeniv.linux.org.uk>2013-11-06 09:54:52 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-11-09 00:16:31 -0500
commit5a3cd99285dc793a4022fa75ceeb323eb6d29ac9 (patch)
tree84d6be981f67655016a62febd87f89bec53c89b3 /fs
parentb18825a7c8e37a7cf6abb97a12a6ad71af160de7 (diff)
downloadlinux-5a3cd99285dc793a4022fa75ceeb323eb6d29ac9.tar.gz
iget/iget5: don't bother with ->i_lock until we find a match
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/inode.c20
-rw-r--r--fs/ntfs/inode.c2
2 files changed, 7 insertions, 15 deletions
diff --git a/fs/inode.c b/fs/inode.c
index b33ba8e021cc..bf7a8b3ab937 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -773,15 +773,11 @@ static struct inode *find_inode(struct super_block *sb,
 
 repeat:
 	hlist_for_each_entry(inode, head, i_hash) {
-		spin_lock(&inode->i_lock);
-		if (inode->i_sb != sb) {
-			spin_unlock(&inode->i_lock);
+		if (inode->i_sb != sb)
 			continue;
-		}
-		if (!test(inode, data)) {
-			spin_unlock(&inode->i_lock);
+		if (!test(inode, data))
 			continue;
-		}
+		spin_lock(&inode->i_lock);
 		if (inode->i_state & (I_FREEING|I_WILL_FREE)) {
 			__wait_on_freeing_inode(inode);
 			goto repeat;
@@ -804,15 +800,11 @@ static struct inode *find_inode_fast(struct super_block *sb,
 
 repeat:
 	hlist_for_each_entry(inode, head, i_hash) {
-		spin_lock(&inode->i_lock);
-		if (inode->i_ino != ino) {
-			spin_unlock(&inode->i_lock);
+		if (inode->i_ino != ino)
 			continue;
-		}
-		if (inode->i_sb != sb) {
-			spin_unlock(&inode->i_lock);
+		if (inode->i_sb != sb)
 			continue;
-		}
+		spin_lock(&inode->i_lock);
 		if (inode->i_state & (I_FREEING|I_WILL_FREE)) {
 			__wait_on_freeing_inode(inode);
 			goto repeat;
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 2778b0255dc6..ffb9b3675736 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -55,7 +55,7 @@
  *
  * Return 1 if the attributes match and 0 if not.
  *
- * NOTE: This function runs with the inode->i_lock spin lock held so it is not
+ * NOTE: This function runs with the inode_hash_lock spin lock held so it is not
  * allowed to sleep.
  */
 int ntfs_test_inode(struct inode *vi, ntfs_attr *na)