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| author | Chao Yu <yuchao0@huawei.com> | 2018-08-06 14:30:18 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-08-13 19:48:17 +0200 |
| commit | b83dcfe67142ea9f4bfaa1e9e21504be9e3c1bf7 (patch) | |
| tree | 1d82393efe973ad6ffa36302bc855c169e78f712 /fs/f2fs | |
| parent | f2fs: split discard command in prior to block layer (diff) | |
| download | linux-b83dcfe67142ea9f4bfaa1e9e21504be9e3c1bf7.tar.xz linux-b83dcfe67142ea9f4bfaa1e9e21504be9e3c1bf7.zip | |
f2fs: support discard submission error injection
This patch adds to support discard submission error injection for testing
error handling of __submit_discard_cmd().
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 | ||||
| -rw-r--r-- | fs/f2fs/segment.c | 8 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 1 |
3 files changed, 10 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 9fb780317b4e..95244e75dfc4 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -56,6 +56,7 @@ enum { FAULT_TRUNCATE, FAULT_IO, FAULT_CHECKPOINT, + FAULT_DISCARD, FAULT_MAX, }; diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 540d7d6161ba..f24e659463e9 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1041,10 +1041,18 @@ static void __submit_discard_cmd(struct f2fs_sb_info *sbi, dc->len += len; +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(sbi, FAULT_DISCARD)) { + f2fs_show_injection_info(FAULT_DISCARD); + err = -EIO; + goto submit; + } +#endif err = __blkdev_issue_discard(bdev, SECTOR_FROM_BLOCK(start), SECTOR_FROM_BLOCK(len), GFP_NOFS, 0, &bio); +submit: if (!err && bio) { /* * should keep before submission to avoid D_DONE diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index bd57be470e23..30bd9138f39d 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -55,6 +55,7 @@ char *f2fs_fault_name[FAULT_MAX] = { [FAULT_TRUNCATE] = "truncate fail", [FAULT_IO] = "IO error", [FAULT_CHECKPOINT] = "checkpoint error", + [FAULT_DISCARD] = "discard error", }; void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate) |