From c72df9f928efd5b17e84bdb7b8ec1be3b9c1ea9d Mon Sep 17 00:00:00 2001
From: Yongqiang Yang <xiaoqiangnk@gmail.com>
Date: Tue, 3 Jan 2012 23:43:39 -0500
Subject: [PATCH] ext4: pass verify_reserved_gdb() the number of group
decriptors
The 64bit resizer adds a flex group each time, so verify_reserved_gdb
can not use s_groups_count directly, it should use the number of group
decriptors before the added group.
Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
fs/ext4/resize.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index eb0aebcca55f..12eace096546 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -656,10 +656,10 @@ static unsigned ext4_list_backups(struct super_block *sb, unsigned *three,
* groups in current filesystem that have BACKUPS, or -ve error code.
*/
static int verify_reserved_gdb(struct super_block *sb,
+ ext4_group_t end,
struct buffer_head *primary)
{
const ext4_fsblk_t blk = primary->b_blocknr;
- const ext4_group_t end = EXT4_SB(sb)->s_groups_count;
unsigned three = 1;
unsigned five = 5;
unsigned seven = 7;
@@ -734,7 +734,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
if (!gdb_bh)
return -EIO;
- gdbackups = verify_reserved_gdb(sb, gdb_bh);
+ gdbackups = verify_reserved_gdb(sb, group, gdb_bh);
if (gdbackups < 0) {
err = gdbackups;
goto exit_bh;
@@ -897,7 +897,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
err = -EIO;
goto exit_bh;
}
- if ((gdbackups = verify_reserved_gdb(sb, primary[res])) < 0) {
+ gdbackups = verify_reserved_gdb(sb, group, primary[res]);
+ if (gdbackups < 0) {
brelse(primary[res]);
err = gdbackups;
goto exit_bh;