When debugging ENOSPC issues, it's nice to be able to see which
reservations failed as well as the ones which succeeded.
Signed-off-by: Jeff Mahoney <je...@suse.com>
---
fs/btrfs/extent-tree.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/fs/btrfs/extent-tree.c 2013-10-21 16:10:02.751981911 -0400
+++ b/fs/btrfs/extent-tree.c 2013-10-21 16:10:04.027953867 -0400
@@ -3699,6 +3699,9 @@ commit_trans:
goto again;
}
+ trace_btrfs_space_reservation(root->fs_info,
+ "space_info:enospc",
+ data_sinfo->flags, bytes, 1);
return -ENOSPC;
}
data_sinfo->bytes_may_use += bytes;
@@ -4350,6 +4353,10 @@ out:
!block_rsv_use_bytes(global_rsv, orig_bytes))
ret = 0;
}
+ if (ret == -ENOSPC)
+ trace_btrfs_space_reservation(root->fs_info,
+ "space_info:enospc",
+ space_info->flags, orig_bytes, 1);
if (flushing) {
spin_lock(&space_info->lock);
space_info->flush = 0;
--
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