From: Nikolay Borisov <kernel@kyup.com>
Date: Wed, 13 Jul 2016 13:19:14 +0000 (+0300)
Subject: btrfs: Ratelimit "no csum found" info message
X-Git-Tag: v5.15~12838^2~27^2~16
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=aee133afcdf77641be66c5c9f32975feca8e6bd0;p=platform%2Fkernel%2Flinux-starfive.git

btrfs: Ratelimit "no csum found" info message

Recently during a crash it became apparent that this particular message
can be printed so many times that it causes the softlockup detector to
trigger. Fix it by ratelimiting it.

Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 62a81ee..6b58d06 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -250,7 +250,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
 						offset + root->sectorsize - 1,
 						EXTENT_NODATASUM);
 				} else {
-					btrfs_info(BTRFS_I(inode)->root->fs_info,
+					btrfs_info_rl(BTRFS_I(inode)->root->fs_info,
 						   "no csum found for inode %llu start %llu",
 					       btrfs_ino(inode), offset);
 				}