From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 5 Oct 2012 20:43:45 +0000 (-0400)
Subject: Btrfs: do not warn_on when we cannot alloc a page for an extent buffer
X-Git-Tag: firefly_0821_release~3680^2~1721^2~15
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4804b38293c020e7a2c841e86402f456c19d934d;p=firefly-linux-kernel-4.4.55.git

Btrfs: do not warn_on when we cannot alloc a page for an extent buffer

It's just annoying and the user will have gotten a nice OOM killer message
so they are already fully aware they are screwed :).  Thanks,

Reported-by: Jérôme Poulin <jeromepoulin@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
---

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 8c37cb64be7a..7dc69b38548d 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4249,10 +4249,8 @@ struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree,
 
 	for (i = 0; i < num_pages; i++, index++) {
 		p = find_or_create_page(mapping, index, GFP_NOFS);
-		if (!p) {
-			WARN_ON(1);
+		if (!p)
 			goto free_eb;
-		}
 
 		spin_lock(&mapping->private_lock);
 		if (PagePrivate(p)) {