diff options
| -rw-r--r-- | mm/madvise.c | 49 |
1 files changed, 27 insertions, 22 deletions
diff --git a/mm/madvise.c b/mm/madvise.c index 388dc289b5d1..c3ab1f283b18 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -1392,7 +1392,32 @@ static int madvise_inject_error(int behavior, return 0; } -#endif + +static bool is_memory_failure(int behavior) +{ + switch (behavior) { + case MADV_HWPOISON: + case MADV_SOFT_OFFLINE: + return true; + default: + return false; + } +} + +#else + +static int madvise_inject_error(int behavior, + unsigned long start, unsigned long end) +{ + return 0; +} + +static bool is_memory_failure(int behavior) +{ + return false; +} + +#endif /* CONFIG_MEMORY_FAILURE */ static bool madvise_behavior_valid(int behavior) @@ -1569,24 +1594,6 @@ int madvise_set_anon_name(struct mm_struct *mm, unsigned long start, } #endif /* CONFIG_ANON_VMA_NAME */ -#ifdef CONFIG_MEMORY_FAILURE -static bool is_memory_failure(int behavior) -{ - switch (behavior) { - case MADV_HWPOISON: - case MADV_SOFT_OFFLINE: - return true; - default: - return false; - } -} -#else -static bool is_memory_failure(int behavior) -{ - return false; -} -#endif - static int madvise_lock(struct mm_struct *mm, int behavior) { if (is_memory_failure(behavior)) @@ -1640,10 +1647,8 @@ static int madvise_do_behavior(struct mm_struct *mm, unsigned long end; int error; -#ifdef CONFIG_MEMORY_FAILURE - if (behavior == MADV_HWPOISON || behavior == MADV_SOFT_OFFLINE) + if (is_memory_failure(behavior)) return madvise_inject_error(behavior, start, start + len_in); -#endif start = untagged_addr_remote(mm, start); end = start + len; |