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>

1 files 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;