This patch adds to support checkpoint error injection in f2fs for testing fatal error tolerance.
Signed-off-by: Chao Yu <yuch...@huawei.com> --- fs/f2fs/f2fs.h | 7 +++++++ fs/f2fs/super.c | 1 + 2 files changed, 8 insertions(+) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index e216bc0..3c513fe 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -47,6 +47,7 @@ enum { FAULT_DIR_DEPTH, FAULT_EVICT_INODE, FAULT_IO, + FAULT_CHECKPOINT, FAULT_MAX, }; @@ -80,6 +81,8 @@ static inline bool time_to_inject(int type) return false; else if (type == FAULT_IO && !IS_FAULT_SET(type)) return false; + else if (type == FAULT_CHECKPOINT && !IS_FAULT_SET(type)) + return false; atomic_inc(&f2fs_fault.inject_ops); if (atomic_read(&f2fs_fault.inject_ops) >= f2fs_fault.inject_rate) { @@ -1873,6 +1876,10 @@ static inline int f2fs_readonly(struct super_block *sb) static inline bool f2fs_cp_error(struct f2fs_sb_info *sbi) { +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(FAULT_CHECKPOINT)) + return true; +#endif return is_set_ckpt_flags(sbi, CP_ERROR_FLAG); } diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 6426855..3c49419 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -51,6 +51,7 @@ char *fault_name[FAULT_MAX] = { [FAULT_DIR_DEPTH] = "too big dir depth", [FAULT_EVICT_INODE] = "evict_inode fail", [FAULT_IO] = "IO error", + [FAULT_CHECKPOINT] = "checkpoint error", }; static void f2fs_build_fault_attr(unsigned int rate) -- 2.8.2.311.gee88674