ext4-use-generic-discard-reservations-call

   1 ext4: Use ext4_discard_reservations instead of mballoc-specific call
   2
   3 In ext4_ext_truncate(), we should use the more generic
   4 ext4_discard_reservations() call so we do the right thing when the
   5 filesystem is mounted with the nomballoc option.
   6
   7 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
   8 Reviewed-by: Mingming Cao <cmm@us.ibm.com>
   9 ---
  10 diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
  11 index 3c82ab1..30a59b8 100644
  12 --- a/fs/ext4/extents.c
  13 +++ b/fs/ext4/extents.c
  14 @@ -2963,7 +2963,7 @@ void ext4_ext_truncate(struct inode *inode)
  15         down_write(&EXT4_I(inode)->i_data_sem);
  16         ext4_ext_invalidate_cache(inode);
  17
  18 -       ext4_mb_discard_inode_preallocations(inode);
  19 +       ext4_discard_reservation(inode);
  20
  21         /*
  22          * TODO: optimization is possible here.