new helper: iter_is_iovec()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-12-17 04:46:46 -05:00
parent b1bc6d7f16
commit 777eda2c5b
3 changed files with 7 additions and 2 deletions
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2464,7 +2464,7 @@ ssize_t generic_perform_write(struct file *file,
 	/*
 	 * Copies from kernel address space cannot fail (NFSD is a big user).
 	 */
-	if (segment_eq(get_fs(), KERNEL_DS))
+	if (!iter_is_iovec(i))
 		flags |= AOP_FLAG_UNINTERRUPTIBLE;

 	do {