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| author | Chao Yu <chao@kernel.org> | 2022-10-06 18:09:28 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2022-11-02 03:56:01 +0300 |
| commit | 18792e64c86dd7e34ba28e4f61faba472b7bf5fc (patch) | |
| tree | cf556062201420aebaa784589c64baa6d3c6c0cf | |
| parent | 91586ce0d39a05f88795aa8814fb99b1387236b3 (diff) | |
| download | linux-18792e64c86dd7e34ba28e4f61faba472b7bf5fc.tar.xz | |
f2fs: support fault injection for f2fs_is_valid_blkaddr()
This patch supports to inject fault into f2fs_is_valid_blkaddr() to
simulate accessing inconsistent data/meta block addressses from caller.
Usage:
a) echo 262144 > /sys/fs/f2fs/<dev>/inject_type or
b) mount -o fault_type=262144 <dev> <mountpoint>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | Documentation/filesystems/f2fs.rst | 1 | ||||
| -rw-r--r-- | fs/f2fs/checkpoint.c | 5 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 1 |
4 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst index 17df9a02ccff..b797e8ec96ed 100644 --- a/Documentation/filesystems/f2fs.rst +++ b/Documentation/filesystems/f2fs.rst @@ -199,6 +199,7 @@ fault_type=%d Support configuring fault injection type, should be FAULT_SLAB_ALLOC 0x000008000 FAULT_DQUOT_INIT 0x000010000 FAULT_LOCK_OP 0x000020000 + FAULT_BLKADDR 0x000040000 =================== =========== mode=%s Control block allocation mode which supports "adaptive" and "lfs". In "lfs" mode, there should be no random diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 0c82dae082aa..c00694a50222 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -171,6 +171,11 @@ static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr, bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi, block_t blkaddr, int type) { + if (time_to_inject(sbi, FAULT_BLKADDR)) { + f2fs_show_injection_info(sbi, FAULT_BLKADDR); + return false; + } + switch (type) { case META_NAT: break; diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index e6355a5683b7..f57cb49dc383 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -60,6 +60,7 @@ enum { FAULT_SLAB_ALLOC, FAULT_DQUOT_INIT, FAULT_LOCK_OP, + FAULT_BLKADDR, FAULT_MAX, }; diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 3834ead04620..df26fbe2bf58 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -61,6 +61,7 @@ const char *f2fs_fault_name[FAULT_MAX] = { [FAULT_SLAB_ALLOC] = "slab alloc", [FAULT_DQUOT_INIT] = "dquot initialize", [FAULT_LOCK_OP] = "lock_op", + [FAULT_BLKADDR] = "invalid blkaddr", }; void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, |