btrfs: send: use kvmalloc in iterate_dir_item

We use a growing buffer for xattrs larger than a page size, at some
point vmalloc is unconditionally used for larger buffers. We can still
try to avoid it using the kvmalloc helper.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2017-05-31 18:40:02 +02:00
parent 818e010bf9
commit f11f74416a

View file

@ -1083,7 +1083,7 @@ static int iterate_dir_item(struct btrfs_root *root, struct btrfs_path *path,
buf = tmp;
}
if (!buf) {
buf = vmalloc(buf_len);
buf = kvmalloc(buf_len, GFP_KERNEL);
if (!buf) {
ret = -ENOMEM;
goto out;