V1->V2:
	Modify the patch 1 description and add the Fixes tag.
	Add the patch 2 as suggested by Jan Kara.
V2->V3:
	Remove the redundant judgment of count in Patch [1].
	Rename ext4_es_alloc_should_nofail to ext4_es_must_keep.
	Split Patch [2].
	Make some functions return void to simplify the code.

This patch set consists of three parts:
1. Patch [1] fix WARNING in ext4_da_update_reserve_space.
2. Patch [2][3] fix extent tree inconsistencies that may be caused
   by memory allocation failures.
3. Patch [4]-[8] is cleanup.

Baokun Li (8):
  ext4: only update i_reserved_data_blocks on successful block
    allocation
  ext4: add a new helper to check if es must be kept
  ext4: use __GFP_NOFAIL if allocating extents_status cannot fail
  ext4: make __es_remove_extent return void
  ext4: make ext4_es_remove_extent return void
  ext4: make ext4_es_insert_delayed_block return void
  ext4: make ext4_es_insert_extent return void
  ext4: make ext4_zeroout_es return void

 fs/ext4/extents.c        |  49 ++++-----------
 fs/ext4/extents_status.c | 127 +++++++++++++++++----------------------
 fs/ext4/extents_status.h |  14 ++---
 fs/ext4/indirect.c       |   8 +++
 fs/ext4/inline.c         |  12 +---
 fs/ext4/inode.c          |  46 +++-----------
 6 files changed, 96 insertions(+), 160 deletions(-)

-- 
2.31.1