diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 528c3c0d55a214de795fb24b7ebc61cdffa2455b..25e3c302b72f81c709820387e60adfbd6875a65d 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -34,6 +34,11 @@ static void f2fs_read_end_io(struct bio *bio) struct bio_vec *bvec; int i; +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (time_to_inject(FAULT_IO)) + bio->bi_error = -EIO; +#endif + if (f2fs_bio_encrypted(bio)) { if (bio->bi_error) { fscrypt_release_ctx(bio->bi_private); diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 951b9b3bc5f3fd47ae413208817eedba5730f7ae..f28b3f8fa72b3ae50443ba0b6691427b89fe795d 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -46,6 +46,7 @@ enum { FAULT_BLOCK, FAULT_DIR_DEPTH, FAULT_EVICT_INODE, + FAULT_IO, FAULT_MAX, }; @@ -77,6 +78,8 @@ static inline bool time_to_inject(int type) return false; else if (type == FAULT_EVICT_INODE && !IS_FAULT_SET(type)) return false; + else if (type == FAULT_IO && !IS_FAULT_SET(type)) + return false; atomic_inc(&f2fs_fault.inject_ops); if (atomic_read(&f2fs_fault.inject_ops) >= f2fs_fault.inject_rate) { diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 555217fe43ce0986c4716ac5c2531442a2b8066c..29e3cf4ccf1b7240337944a98d4005cc20ccfc1e 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -50,6 +50,7 @@ char *fault_name[FAULT_MAX] = { [FAULT_BLOCK] = "no more block", [FAULT_DIR_DEPTH] = "too big dir depth", [FAULT_EVICT_INODE] = "evict_inode fail", + [FAULT_IO] = "IO error", }; static void f2fs_build_fault_attr(unsigned int rate)