X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=mm%2Fmsync.c;h=c3bd3e75f68764514e6f92914b4f05253146a3ea;hb=0cd81d77d0569f1dc1e39abeea93c6184e9b5b54;hp=ef30a429623a2f8191d9364a0c9a8b4aab0ddc8e;hpb=babd8a3e31fbb0abb4c37ee3548974732080b996;p=linux-2.6-block.git

diff --git a/mm/msync.c b/mm/msync.c
index ef30a429623a..c3bd3e75f687 100644
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -37,6 +37,8 @@ SYSCALL_DEFINE3(msync, unsigned long, start, size_t, len, int, flags)
 	int unmapped_error = 0;
 	int error = -EINVAL;
 
+	start = untagged_addr(start);
+
 	if (flags & ~(MS_ASYNC | MS_INVALIDATE | MS_SYNC))
 		goto out;
 	if (offset_in_page(start))