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