[PATCH 0/7] ext4: support adding multi-delalloc blocks

[Zhang Yi <yi.zhang@huaweicloud.com>]

From: Zhang Yi <yi.zhang@huawei.com>

Hello!

This patch series is the part 2 prepartory changes of the buffered IO
iomap conversion, I picked them out from my buffered IO iomap conversion
RFC series v3[1], and add bigalloc feature support.

The first 6 patches make ext4_insert_delayed_block() call path support
inserting multi-delalloc blocks once a time, and the last patch makes
ext4_da_map_blocks() buffer_head unaware.

This patch set has been passed 'kvm-xfstests -g auto' tests, I hope it
could be reviewed and merged first.

[1] https://lore.kernel.org/linux-ext4/20240127015825.1608160-1-yi.zhang@huaweicloud.com/

Thanks,
Yi.

Zhang Yi (7):
  ext4: trim delalloc extent
  ext4: drop iblock parameter
  ext4: make ext4_es_insert_delayed_block() insert multi-blocks
  ext4: make ext4_da_reserve_space() reserve multi-clusters
  ext4: factor out check for whether a cluster is allocated
  ext4: make ext4_insert_delayed_block() insert multi-blocks
  ext4: make ext4_da_map_blocks() buffer_head unaware

 fs/ext4/extents_status.c    |  63 +++++++++-----
 fs/ext4/extents_status.h    |   5 +-
 fs/ext4/inode.c             | 165 ++++++++++++++++++++++--------------
 include/trace/events/ext4.h |  26 +++---
 4 files changed, 162 insertions(+), 97 deletions(-)

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2.39.2