ext4-request-for-blocks-with-ar.excepted_group-1.patch

   1 From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
   2 ext4: request for blocks with ar.excepted_group = -1
   3
   4 Otherwise we skip group 0 during block allocation.
   5 This cause ENOSPC even if we have free blocks in
   6 group 0. This should be merged with defrag. The
   7 expected_group changes are introduced by defrag patches.
   8
   9 Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
  10 ---
  11  fs/ext4/balloc.c  |    1 +
  12  fs/ext4/extents.c |    1 +
  13  2 files changed, 2 insertions(+), 0 deletions(-)
  14
  15 diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
  16 index b19346a..53fdb05 100644
  17 --- a/fs/ext4/balloc.c
  18 +++ b/fs/ext4/balloc.c
  19 @@ -2023,6 +2023,7 @@ static ext4_fsblk_t do_blk_alloc(handle_t *handle, struct inode *inode,
  20         ar.goal = goal;
  21         ar.len = *count;
  22         ar.logical = iblock;
  23 +       ar.excepted_group = -1;
  24
  25         if (S_ISREG(inode->i_mode) && !(flags & EXT4_META_BLOCK))
  26                 /* enable in-core preallocation for data block allocation */
  27 diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
  28 index bf612a7..268e96d 100644
  29 --- a/fs/ext4/extents.c
  30 +++ b/fs/ext4/extents.c
  31 @@ -2879,6 +2879,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
  32         ar.goal = ext4_ext_find_goal(inode, path, iblock);
  33         ar.logical = iblock;
  34         ar.len = allocated;
  35 +       ar.excepted_group = -1;
  36         if (S_ISREG(inode->i_mode))
  37                 ar.flags = EXT4_MB_HINT_DATA;
  38         else
  39 --
  40 1.6.0.1.90.g27a6e
  41