A debugging helper, not really intended for merge.
From: David Sterba <dsterba@xxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxx>
---
fs/btrfs/extent-tree.c | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 44a3107..c5c1e7d 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -23,6 +23,7 @@
#include <linux/rcupdate.h>
#include <linux/kthread.h>
#include <linux/slab.h>
+#include <linux/ratelimit.h>
#include "compat.h"
#include "hash.h"
#include "ctree.h"
@@ -5703,7 +5704,13 @@ use_block_rsv(struct btrfs_trans_handle *trans,
if (!ret)
return block_rsv;
if (ret) {
- WARN_ON(1);
+ static DEFINE_RATELIMIT_STATE(_rs,
+ DEFAULT_RATELIMIT_INTERVAL,
+ /*DEFAULT_RATELIMIT_BURST*/ 2);
+ if (__ratelimit(&_rs)) {
+ printk(KERN_DEBUG "btrfs: block rsv returned %d\n", ret);
+ WARN_ON(1);
+ }
ret = reserve_metadata_bytes(trans, root, block_rsv, blocksize,
0);
if (!ret) {
--
1.7.6
--
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