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make iunique use a do/while loop rather than its obscure goto loop

Browse source 
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>
This commit is contained in:
Jeffrey Layton 2007-05-08 00:29:48 -07:00 committed by Linus Torvalds
parent 9d0633cfed
commit 3361c7bebb
1 changed files with 13 additions and 17 deletions
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30
fs/inode.c
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@ -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);
res = counter++;
inode = find_inode_fast(sb, head, res);
if (!inode) {
spin_unlock(&inode_lock);
return res;
}
} else {
counter = max_reserved + 1;
}
goto retry;
}
spin_lock(&inode_lock);
do {
if (counter <= max_reserved)
counter = max_reserved + 1;
res = counter++;
head = inode_hashtable + hash(sb, res);
inode = find_inode_fast(sb, head, res);
} while (inode != NULL);
spin_unlock(&inode_lock);
return res;
}
EXPORT_SYMBOL(iunique);
struct inode *igrab(struct inode *inode)