From 349dbc3669d043e656f3ed48c7bfe073ca1c6326 Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Tue, 10 May 2011 20:59:34 +0900 Subject: [PATCH] nilfs2: fix infinite loop in nilfs_palloc_freev function After having applied commit 9954e7af14868b8b ("nilfs2: add free entries count only if clear bit operation succeeded"), a free routine of nilfs came to fall into an infinite loop, outputting the same message endlessly: nilfs_palloc_freev: entry number 29497 already freed nilfs_palloc_freev: entry number 29497 already freed nilfs_palloc_freev: entry number 29497 already freed nilfs_palloc_freev: entry number 29497 already freed nilfs_palloc_freev: entry number 29497 already freed ... That patch broke the routine so that a loop counter is never updated in an abnormal state. This fixes the regression. Signed-off-by: Ryusuke Konishi --- fs/nilfs2/alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nilfs2/alloc.c b/fs/nilfs2/alloc.c index 0a0a66d98cce..f7684483785e 100644 --- a/fs/nilfs2/alloc.c +++ b/fs/nilfs2/alloc.c @@ -646,7 +646,7 @@ int nilfs_palloc_freev(struct inode *inode, __u64 *entry_nrs, size_t nitems) unsigned long group, group_offset; int i, j, n, ret; - for (i = 0; i < nitems; i += n) { + for (i = 0; i < nitems; i = j) { group = nilfs_palloc_group(inode, entry_nrs[i], &group_offset); ret = nilfs_palloc_get_desc_block(inode, group, 0, &desc_bh); if (ret < 0)