Activate various messages that help track down clustered allocation
problems, that are disabled and optimized out by default.
Signed-off-by: Alexandre Oliva <ol...@lsd.ic.unicamp.br>
---
fs/btrfs/extent-tree.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 823ab22..66edda2 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5216,7 +5216,7 @@ static noinline int find_free_extent(struct
btrfs_trans_handle *trans,
allowed_chunk_alloc = 1;
if (data & BTRFS_BLOCK_GROUP_METADATA && use_cluster) {
- /* debug = 1; */
+ debug = 1;
debugid = atomic_inc_return(&debugcnt);
last_ptr = &root->fs_info->meta_alloc_cluster;
if (!btrfs_test_opt(root, SSD))
@@ -5393,7 +5393,7 @@ alloc:
goto checks;
}
- /* debug = 2; */
+ debug = 2;
if (debug > 1)
printk(KERN_DEBUG "btrfs %x.%i: failed cluster
alloc\n",
debugid, loop);
@@ -5446,7 +5446,7 @@ refill_cluster:
* this cluster didn't work out, free it and
* start over
*/
- /* debug = 2; */
+ debug = 2;
if ((debug > 1 || (debug && last_ptr->block_group)) &&
last_ptr->window_start)
btrfs_dump_cluster(KERN_DEBUG, debugid, loop,
0, "drop", last_ptr);
btrfs_return_cluster_to_free_space(NULL, last_ptr);
--
1.7.4.4
--
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