diff options
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 90d4b86..2234879 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -39,6 +39,10 @@ static struct proc_dir_entry *f2fs_proc_root; static struct kmem_cache *f2fs_inode_cachep; static struct kset *f2fs_kset; +#ifdef CONFIG_F2FS_FAULT_INJECTION +u32 f2fs_fault_rate = 0; +#endif + /* f2fs-wide shrinker description */ static struct shrinker f2fs_shrinker_info = { .scan_objects = f2fs_shrink_scan, @@ -68,6 +72,7 @@ enum { Opt_noextent_cache, Opt_noinline_data, Opt_data_flush, + Opt_fault_injection, Opt_err, }; @@ -93,6 +98,7 @@ static match_table_t f2fs_tokens = { {Opt_noextent_cache, "noextent_cache"}, {Opt_noinline_data, "noinline_data"}, {Opt_data_flush, "data_flush"}, + {Opt_fault_injection, "fault_injection=%u"}, {Opt_err, NULL}, }; @@ -300,6 +306,9 @@ static int parse_options(struct super_block *sb, char *options) char *p, *name; int arg = 0; +#ifdef CONFIG_F2FS_FAULT_INJECTION + f2fs_fault_rate = 0; +#endif if (!options) return 0; @@ -433,6 +442,16 @@ static int parse_options(struct super_block *sb, char *options) case Opt_data_flush: set_opt(sbi, DATA_FLUSH); break; + case Opt_fault_injection: + if (args->from && match_int(args, &arg)) + return -EINVAL; +#ifdef CONFIG_F2FS_FAULT_INJECTION + f2fs_fault_rate = arg; +#else + f2fs_msg(sb, KERN_INFO, + "FAULT_INJECTION was not selected"); +#endif + break; default: f2fs_msg(sb, KERN_ERR, "Unrecognized mount option \"%s\" or missing value", |