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 <konishi.ryusuke@lab.ntt.co.jp>

1 files changed, 1 insertions, 1 deletions

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)