f2fs: let discard thread wait a little longer if dev is busy

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This patch modify discard thread wait policy as below:
	issued       io_interrupted     wait time(ms)
1.        8                 0               50
2.      (0,8)               1               50
3.        0                 1              500 (dev is busy)
4.        0                 0            60000 (no candidates)

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

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Yunlei He 2018-04-08 15:11:11 +08:00 • committed by Jaegeuk Kim

parent 2ef79ecb5e

commit f9d1dced75

2 changed files with 7 additions and 1 deletions

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2

fs/f2fs/f2fs.h

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6

fs/f2fs/segment.c

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