f2fs: introduce max_io_bytes, a sysfs entry, to limit bio size

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This patch adds max_io_bytes to limit bio size when f2fs tries to merge
consecutive IOs. This can give a testing point to split out bios and check
end_io handles those bios correctly. This is used to capture a recent bug
on the decompression and fsverity flow.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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This commit is contained in:

Jaegeuk Kim 2020-12-03 09:52:45 -08:00

parent ec2ddf4994

commit 10208567f1

4 changed files with 13 additions and 0 deletions

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7

Documentation/ABI/testing/sysfs-fs-f2fs

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3

fs/f2fs/data.c

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1

fs/f2fs/f2fs.h

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2

fs/f2fs/sysfs.c

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