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

   1 ext4: request for blocks with ar.excepted_group = -1
   2
   3 From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
   4
   5 Otherwise we skip group 0 during block allocation.
   6 This cause ENOSPC even if we have free blocks in
   7 group 0. This should be merged with defrag. The
   8 expected_group changes are introduced by defrag patches.
   9
  10 Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
  11 ---
  12  fs/ext4/balloc.c  |    1 +
  13  fs/ext4/extents.c |    1 +
  14  2 files changed, 2 insertions(+), 0 deletions(-)
  15
  16 diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
  17 index b19346a..53fdb05 100644
  18 --- a/fs/ext4/balloc.c
  19 +++ b/fs/ext4/balloc.c
  20 @@ -2023,6 +2023,7 @@ static ext4_fsblk_t do_blk_alloc(handle_t *handle, struct inode *inode,
  21         ar.goal = goal;
  22         ar.len = *count;
  23         ar.logical = iblock;
  24 +       ar.excepted_group = -1;
  25
  26         if (S_ISREG(inode->i_mode) && !(flags & EXT4_META_BLOCK))
  27                 /* enable in-core preallocation for data block allocation */
  28 diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
  29 index bf612a7..268e96d 100644
  30 --- a/fs/ext4/extents.c
  31 +++ b/fs/ext4/extents.c
  32 @@ -2879,6 +2879,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
  33         ar.goal = ext4_ext_find_goal(inode, path, iblock);
  34         ar.logical = iblock;
  35         ar.len = allocated;
  36 +       ar.excepted_group = -1;
  37         if (S_ISREG(inode->i_mode))
  38                 ar.flags = EXT4_MB_HINT_DATA;
  39         else
  40 --
  41 1.6.0.1.90.g27a6e
  42