ldiskfs/kernel_patches/patches/sles11sp2/ext4-handle-cleanup-after-quota-failure.patch

   1 From: Jeff Mahoney <jeffm@suse.com>
   2 Subject: ext4: cleanup sbi->s_kobj after quota initialization failure
   3
   4 If ext4_enable_quotas fails, it jumps to failed_mount7, which doesn't
   5 tear down the kobj. If the user tries to mount the file system again,
   6 they'll get big scary WARN_ONs from sysfs.
   7
   8 Signed-off-by: Jeff Mahoney <jeffm@suse.com>
   9 ---
  10  fs/ext4/super.c |    6 +++++-
  11  1 file changed, 5 insertions(+), 1 deletion(-)
  12
  13 --- a/fs/ext4/super.c
  14 +++ b/fs/ext4/super.c
  15 @@ -3794,7 +3794,7 @@ no_journal:
  16             !(sb->s_flags & MS_RDONLY)) {
  17                 ret = ext4_enable_quotas(sb);
  18                 if (ret)
  19 -                       goto failed_mount7;
  20 +                       goto failed_mount8;
  21         }
  22  #endif  /* CONFIG_QUOTA */
  23
  24 @@ -3813,6 +3813,10 @@ cantfind_ext4:
  25                 ext4_msg(sb, KERN_ERR, "VFS: Can't find ext4 filesystem");
  26         goto failed_mount;
  27
  28 +failed_mount8:
  29 +       kobject_del(&sbi->s_kobj);
  30 +       kobject_put(&sbi->s_kobj);
  31 +       wait_for_completion(&sbi->s_kobj_unregister);
  32  failed_mount7:
  33         ext4_unregister_li_request(sb);
  34  failed_mount6: