f2fs: add a way to turn off ipu bio cache

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Setting 0x40 in /sys/fs/f2fs/dev/ipu_policy gives a way to turn off
bio cache, which is useufl to check whether block layer using hardware
encryption engine merges IOs correctly.

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 2020-01-06 16:43:09 -08:00

parent bf2cbd3c57

commit 0e7f41974e

3 changed files with 6 additions and 3 deletions

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5

Documentation/filesystems/f2fs.txt

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2

fs/f2fs/segment.c

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2

fs/f2fs/segment.h

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