f2fs: introduce async IPU policy

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This patch introduces an ASYNC IPU policy.

Under senario of large # of async updating(e.g. log writing in Android),
disk would be seriously fragmented, and higher frequent gc would be triggered.

This patch uses IPU to rewrite the async update writting, since async is
NOT sensitive to io latency.

Signed-off-by: Hou Pengyang <houpengyang@huawei.com>

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This commit is contained in:

Hou Pengyang 2017-04-18 11:57:16 +00:00 • committed by Jaegeuk Kim

parent d84d1cbdec

commit 04485987f0

3 changed files with 13 additions and 3 deletions

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2

fs/f2fs/data.c

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2

fs/f2fs/file.c

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12

fs/f2fs/segment.h

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