f2fs: in prior to issue big discard

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Keep issuing big size discard in prior instead of the one with random
size, so that we expect that it will help to:
- be quick to recycle unused large space in flash storage device.
- give a chance for
  a) wait to merge small piece discards into bigger one, or
  b) avoid issuing discards while they have being reallocated by SSR.

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

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Chao Yu 2017-04-15 14:09:37 +08:00 • committed by Jaegeuk Kim

parent 46f84c2c05

commit ba48a33ef6

2 changed files with 45 additions and 16 deletions

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7

fs/f2fs/f2fs.h

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54

fs/f2fs/segment.c

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