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 (file)
--- 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);
                                }