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-rw-r--r--mm/madvise.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/mm/madvise.c b/mm/madvise.c
index 31da09412934..25b78ee4fc2c 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -687,6 +687,10 @@ madvise_behavior_valid(int behavior)
#endif
case MADV_DONTDUMP:
case MADV_DODUMP:
+#ifdef CONFIG_MEMORY_FAILURE
+ case MADV_SOFT_OFFLINE:
+ case MADV_HWPOISON:
+#endif
return true;
default:
@@ -760,10 +764,6 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
size_t len;
struct blk_plug plug;
-#ifdef CONFIG_MEMORY_FAILURE
- if (behavior == MADV_HWPOISON || behavior == MADV_SOFT_OFFLINE)
- return madvise_inject_error(behavior, start, start + len_in);
-#endif
if (!madvise_behavior_valid(behavior))
return error;
@@ -783,6 +783,11 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
if (end == start)
return error;
+#ifdef CONFIG_MEMORY_FAILURE
+ if (behavior == MADV_HWPOISON || behavior == MADV_SOFT_OFFLINE)
+ return madvise_inject_error(behavior, start, start + len_in);
+#endif
+
write = madvise_need_mmap_write(behavior);
if (write) {
if (down_write_killable(&current->mm->mmap_sem))