From: Zhang Yi <yi.zhang@xxxxxxxxxx>
Hello!
This patch series is the part 3 prepartory changes of the buffered IO
iomap conversion, it simplify the counting and updating logic of delalloc
reserved blocks. I picked them out from my buffered IO iomap conversion
RFC series v4[1], and did some minor change log messages improvement.
It's based on the part 2 prepartory series [2] (not merged yet) +
6.10-rc1.
Patch 1-3 simplify the delalloc extent management logic by changes to
always set EXT4_GET_BLOCKS_DELALLOC_RESERVE flag when allocating
preallocated blocks, and don't add EXTENT_STATUS_DELAYED flag to an
unwritten extent, which means ext4_es_is_delayed() is equal to
ext4_es_is_delonly().
Patch 4-6 simplify the reserved blocks updating logic by moves the
reserved blocks updating from ext4_{ind|ext}_map_blocks() to
ext4_es_insert_extent().
Patch 7-10 drop the unused code (e.g. ext4_es_is_delonly())and update
comments.
This series has passed through kvm-xfstests in auto mode many times,
please take a look at it.
[1] https://lore.kernel.org/linux-ext4/20240410142948.2817554-1-yi.zhang@xxxxxxxxxxxxxxx/
[2] https://lore.kernel.org/linux-ext4/20240517124005.347221-1-yi.zhang@xxxxxxxxxxxxxxx/
Thanks,
Yi.
Zhang Yi (10):
ext4: factor out ext4_map_create_blocks() to allocate new blocks
ext4: optimize the EXT4_GET_BLOCKS_DELALLOC_RESERVE flag set
ext4: don't set EXTENT_STATUS_DELAYED on allocated blocks
ext4: let __revise_pending() return newly inserted pendings
ext4: count removed reserved blocks for delalloc only extent entry
ext4: update delalloc data reserve spcae in ext4_es_insert_extent()
ext4: drop ext4_es_delayed_clu()
ext4: use ext4_map_query_blocks() in ext4_map_blocks()
ext4: drop ext4_es_is_delonly()
ext4: drop all delonly descriptions
fs/ext4/extents.c | 37 ------
fs/ext4/extents_status.c | 271 ++++++++++++++++-----------------------
fs/ext4/extents_status.h | 7 -
fs/ext4/indirect.c | 7 -
fs/ext4/inode.c | 197 +++++++++++++---------------
5 files changed, 195 insertions(+), 324 deletions(-)
--
2.31.1
