ext4: track partial-zero outcome per edge in ext4_zero_partial_blocks()

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Replace the single bool did_zero output of ext4_zero_partial_blocks()
with a bitmask that records which edge (start, end, or both in the
single-block case) was actually partial-zeroed. This allows callers to
distinguish which edges have been zeroed, preparing for unaligned
FALLOC_FL_WRITE_ZEROES handling in later patches.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260714080044.4038124-7-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

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Zhang Yi 2026-07-14 16:00:41 +08:00 • committed by Theodore Ts'o

parent 012e6a2c9f

commit 4c1f693139

3 changed files with 35 additions and 8 deletions

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5

fs/ext4/ext4.h

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2

fs/ext4/extents.c

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36

fs/ext4/inode.c

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