f2fs: add a kernel thread to issue discard commands asynchronously

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This patch adds a kernel thread to issue discard commands.
It proposes three states, D_PREP, D_SUBMIT, and D_DONE to identify current
bio status.

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 2017-01-09 20:32:07 -08:00

parent 0b54fb8458

commit 1546996348

2 changed files with 109 additions and 31 deletions

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12

fs/f2fs/f2fs.h

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132

fs/f2fs/segment.c

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