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f2fs: split IO error injection according to RW

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This patch adds to support injecting error for write IO, this can simulate
IO error like fail_make_request or dm_flakey does.

Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
This commit is contained in:
Chao Yu 2018-09-12 09:22:29 +08:00 • committed by Jaegeuk Kim
commit 6f5c2ed0a2
4 changed files with 14 additions and 5 deletions
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3
Documentation/filesystems/f2fs.txt
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@ -172,9 +172,10 @@ fault_type=%d Support configuring fault injection type, should be
FAULT_DIR_DEPTH 0x000000100
FAULT_EVICT_INODE 0x000000200
FAULT_TRUNCATE 0x000000400
FAULT_IO 0x000000800
FAULT_READ_IO 0x000000800
FAULT_CHECKPOINT 0x000001000
FAULT_DISCARD 0x000002000
FAULT_WRITE_IO 0x000004000
mode=%s Control block allocation mode which supports "adaptive"
and "lfs". In "lfs" mode, there should be no random
writes towards main area.