From 3361c7bebbf207f57f3dd1282cd87e1e37c082ac Mon Sep 17 00:00:00 2001
From: Jeffrey Layton <jlayton@redhat.com>
Date: Tue, 8 May 2007 00:29:48 -0700
Subject: [PATCH] make iunique use a do/while loop rather than its obscure goto
loop
A while back, Christoph mentioned that he thought that iunique ought to be
cleaned up to use a more conventional loop construct. This patch does that,
turning the strange goto loop into a do/while.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
fs/inode.c | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)
diff --git a/fs/inode.c b/fs/inode.c
index c03089421b6f..81508b0a3a70 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -685,25 +685,21 @@ ino_t iunique(struct super_block *sb, ino_t max_reserved)
{
static ino_t counter;
struct inode *inode;
- struct hlist_head * head;
+ struct hlist_head *head;
ino_t res;
+
spin_lock(&inode_lock);
-retry:
- if (counter > max_reserved) {
- head = inode_hashtable + hash(sb,counter);
+ do {
+ if (counter <= max_reserved)
+ counter = max_reserved + 1;
res = counter++;
+ head = inode_hashtable + hash(sb, res);
inode = find_inode_fast(sb, head, res);
- if (!inode) {
- spin_unlock(&inode_lock);
- return res;
- }
- } else {
- counter = max_reserved + 1;
- }
- goto retry;
-
-}
+ } while (inode != NULL);
+ spin_unlock(&inode_lock);
+ return res;
+}
EXPORT_SYMBOL(iunique);
struct inode *igrab(struct inode *inode)
--
2.20.1