diff options
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/f2fs.h | 12 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 27 | ||||
| -rw-r--r-- | fs/f2fs/sysfs.c | 14 |
3 files changed, 38 insertions, 15 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 07b3675ea1..6c60e43ec8 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -72,7 +72,7 @@ enum { struct f2fs_fault_info { atomic_t inject_ops; - unsigned int inject_rate; + int inject_rate; unsigned int inject_type; }; @@ -4597,10 +4597,14 @@ static inline bool f2fs_need_verity(const struct inode *inode, pgoff_t idx) } #ifdef CONFIG_F2FS_FAULT_INJECTION -extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, - unsigned int type); +extern int f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned long rate, + unsigned long type); #else -#define f2fs_build_fault_attr(sbi, rate, type) do { } while (0) +static inline int f2fs_build_fault_attr(struct f2fs_sb_info *sbi, + unsigned long rate, unsigned long type) +{ + return 0; +} #endif static inline bool is_journalled_quota(struct f2fs_sb_info *sbi) diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 2f75a7dfc3..0c3ebe4d90 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -66,21 +66,31 @@ const char *f2fs_fault_name[FAULT_MAX] = { [FAULT_NO_SEGMENT] = "no free segment", }; -void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, - unsigned int type) +int f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned long rate, + unsigned long type) { struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; if (rate) { + if (rate > INT_MAX) + return -EINVAL; atomic_set(&ffi->inject_ops, 0); - ffi->inject_rate = rate; + ffi->inject_rate = (int)rate; } - if (type) - ffi->inject_type = type; + if (type) { + if (type >= BIT(FAULT_MAX)) + return -EINVAL; + ffi->inject_type = (unsigned int)type; + } if (!rate && !type) memset(ffi, 0, sizeof(struct f2fs_fault_info)); + else + f2fs_info(sbi, + "build fault injection attr: rate: %lu, type: 0x%lx", + rate, type); + return 0; } #endif @@ -886,14 +896,17 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) case Opt_fault_injection: if (args->from && match_int(args, &arg)) return -EINVAL; - f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE); + if (f2fs_build_fault_attr(sbi, arg, + F2FS_ALL_FAULT_TYPE)) + return -EINVAL; set_opt(sbi, FAULT_INJECTION); break; case Opt_fault_type: if (args->from && match_int(args, &arg)) return -EINVAL; - f2fs_build_fault_attr(sbi, 0, arg); + if (f2fs_build_fault_attr(sbi, 0, arg)) + return -EINVAL; set_opt(sbi, FAULT_INJECTION); break; #else diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index a568ce96cf..7aa3844e7a 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -484,10 +484,16 @@ out: if (ret < 0) return ret; #ifdef CONFIG_F2FS_FAULT_INJECTION - if (a->struct_type == FAULT_INFO_TYPE && t >= BIT(FAULT_MAX)) - return -EINVAL; - if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX) - return -EINVAL; + if (a->struct_type == FAULT_INFO_TYPE) { + if (f2fs_build_fault_attr(sbi, 0, t)) + return -EINVAL; + return count; + } + if (a->struct_type == FAULT_INFO_RATE) { + if (f2fs_build_fault_attr(sbi, t, 0)) + return -EINVAL; + return count; + } #endif if (a->struct_type == RESERVED_BLOCKS) { spin_lock(&sbi->stat_lock); |