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| author | Jeff Mahoney <jeffm@suse.com> | 2013-10-16 16:27:01 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2013-11-11 22:03:37 -0500 |
| commit | cab45e22da48b523665b3566f43527a2fead1d1e (patch) | |
| tree | e4c3dfbf5bad8298ef40cbb681461d7cac168990 /fs | |
| parent | 8b558c5f097b636209b654f4d7775ac96054d6e3 (diff) | |
| download | op-kernel-dev-cab45e22da48b523665b3566f43527a2fead1d1e.zip op-kernel-dev-cab45e22da48b523665b3566f43527a2fead1d1e.tar.gz | |
btrfs: add tracing for failed reservations
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 <jeffm@suse.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 4062a65..a807acc 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3684,6 +3684,9 @@ 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; @@ -4335,6 +4338,10 @@ 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; |
