diff options
| -rw-r--r-- | Documentation/filesystems/f2fs.txt | 18 | ||||
| -rw-r--r-- | fs/f2fs/checkpoint.c | 2 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 7 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 34 |
4 files changed, 51 insertions, 10 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index 69f8de995739..e5edd29687b5 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -157,6 +157,24 @@ data_flush Enable data flushing before checkpoint in order to persist data of regular and symlink. fault_injection=%d Enable fault injection in all supported types with specified injection rate. +fault_type=%d Support configuring fault injection type, should be + enabled with fault_injection option, fault type value + is shown below, it supports single or combined type. + Type_Name Type_Value + FAULT_KMALLOC 0x000000001 + FAULT_KVMALLOC 0x000000002 + FAULT_PAGE_ALLOC 0x000000004 + FAULT_PAGE_GET 0x000000008 + FAULT_ALLOC_BIO 0x000000010 + FAULT_ALLOC_NID 0x000000020 + FAULT_ORPHAN 0x000000040 + FAULT_BLOCK 0x000000080 + FAULT_DIR_DEPTH 0x000000100 + FAULT_EVICT_INODE 0x000000200 + FAULT_TRUNCATE 0x000000400 + FAULT_IO 0x000000800 + FAULT_CHECKPOINT 0x000001000 + FAULT_DISCARD 0x000002000 mode=%s Control block allocation mode which supports "adaptive" and "lfs". In "lfs" mode, there should be no random writes towards main area. diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 31561026ac9a..3ab7a00c0641 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -28,7 +28,7 @@ struct kmem_cache *f2fs_inode_entry_slab; void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io) { - f2fs_build_fault_attr(sbi, 0); + f2fs_build_fault_attr(sbi, 0, 0); set_ckpt_flags(sbi, CP_ERROR_FLAG); if (!end_io) f2fs_flush_merged_writes(sbi); diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 95244e75dfc4..375aa9f30cfa 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -60,6 +60,8 @@ enum { FAULT_MAX, }; +#define F2FS_ALL_FAULT_TYPE ((1 << FAULT_MAX) - 1) + struct f2fs_fault_info { atomic_t inject_ops; unsigned int inject_rate; @@ -3435,9 +3437,10 @@ static inline bool f2fs_force_buffered_io(struct inode *inode, int rw) } #ifdef CONFIG_F2FS_FAULT_INJECTION -extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate); +extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, + unsigned int type); #else -#define f2fs_build_fault_attr(sbi, rate) do { } while (0) +#define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) #endif #endif diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 30bd9138f39d..be41dbd7b261 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -58,17 +58,21 @@ char *f2fs_fault_name[FAULT_MAX] = { [FAULT_DISCARD] = "discard error", }; -void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate) +void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, + unsigned int type) { struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; if (rate) { atomic_set(&ffi->inject_ops, 0); ffi->inject_rate = rate; - ffi->inject_type = (1 << FAULT_MAX) - 1; - } else { - memset(ffi, 0, sizeof(struct f2fs_fault_info)); } + + if (type) + ffi->inject_type = type; + + if (!rate && !type) + memset(ffi, 0, sizeof(struct f2fs_fault_info)); } #endif @@ -113,6 +117,7 @@ enum { Opt_mode, Opt_io_size_bits, Opt_fault_injection, + Opt_fault_type, Opt_lazytime, Opt_nolazytime, Opt_quota, @@ -170,6 +175,7 @@ static match_table_t f2fs_tokens = { {Opt_mode, "mode=%s"}, {Opt_io_size_bits, "io_bits=%u"}, {Opt_fault_injection, "fault_injection=%u"}, + {Opt_fault_type, "fault_type=%u"}, {Opt_lazytime, "lazytime"}, {Opt_nolazytime, "nolazytime"}, {Opt_quota, "quota"}, @@ -600,7 +606,18 @@ static int parse_options(struct super_block *sb, char *options) if (args->from && match_int(args, &arg)) return -EINVAL; #ifdef CONFIG_F2FS_FAULT_INJECTION - f2fs_build_fault_attr(sbi, arg); + f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE); + set_opt(sbi, FAULT_INJECTION); +#else + f2fs_msg(sb, KERN_INFO, + "FAULT_INJECTION was not selected"); +#endif + break; + case Opt_fault_type: + if (args->from && match_int(args, &arg)) + return -EINVAL; +#ifdef CONFIG_F2FS_FAULT_INJECTION + f2fs_build_fault_attr(sbi, 0, arg); set_opt(sbi, FAULT_INJECTION); #else f2fs_msg(sb, KERN_INFO, @@ -1321,9 +1338,12 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) if (F2FS_IO_SIZE_BITS(sbi)) seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); #ifdef CONFIG_F2FS_FAULT_INJECTION - if (test_opt(sbi, FAULT_INJECTION)) + if (test_opt(sbi, FAULT_INJECTION)) { seq_printf(seq, ",fault_injection=%u", F2FS_OPTION(sbi).fault_info.inject_rate); + seq_printf(seq, ",fault_type=%u", + F2FS_OPTION(sbi).fault_info.inject_type); + } #endif #ifdef CONFIG_QUOTA if (test_opt(sbi, QUOTA)) @@ -1393,7 +1413,7 @@ static void default_options(struct f2fs_sb_info *sbi) set_opt(sbi, POSIX_ACL); #endif - f2fs_build_fault_attr(sbi, 0); + f2fs_build_fault_attr(sbi, 0, 0); } #ifdef CONFIG_QUOTA |