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| author | Josef Bacik <josef@redhat.com> | 2011-11-10 08:29:20 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2012-01-16 15:29:42 -0500 |
| commit | 3f7de037fb3727b20bc27332cdcf2488b702394c (patch) | |
| tree | 7e355b7e60b584ca7aaaf7c8abfa1f2408c15ff2 /fs/btrfs/extent-tree.c | |
| parent | 45a8090e626ab470c91142954431a93846030b0d (diff) | |
| download | blackbird-op-linux-3f7de037fb3727b20bc27332cdcf2488b702394c.tar.gz blackbird-op-linux-3f7de037fb3727b20bc27332cdcf2488b702394c.zip | |
Btrfs: add allocator tracepoints
I used these tracepoints when figuring out what the cluster stuff was doing, so
add them to mainline in case we need to profile this stuff again. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a44072a692ab..ad1a20bc834d 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5256,6 +5256,8 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans, ins->objectid = 0; ins->offset = 0; + trace_find_free_extent(orig_root, num_bytes, empty_size, data); + space_info = __find_space_info(root->fs_info, data); if (!space_info) { printk(KERN_ERR "No space info for %llu\n", data); @@ -5432,6 +5434,8 @@ alloc: if (offset) { /* we have a block, we're done */ spin_unlock(&last_ptr->refill_lock); + trace_btrfs_reserve_extent_cluster(root, + block_group, search_start, num_bytes); goto checks; } @@ -5490,6 +5494,9 @@ refill_cluster: if (offset) { /* we found one, proceed */ spin_unlock(&last_ptr->refill_lock); + trace_btrfs_reserve_extent_cluster(root, + block_group, search_start, + num_bytes); goto checks; } } else if (!cached && loop > LOOP_CACHING_NOWAIT @@ -5576,6 +5583,8 @@ checks: ins->objectid = search_start; ins->offset = num_bytes; + trace_btrfs_reserve_extent(orig_root, block_group, + search_start, num_bytes); if (offset < search_start) btrfs_add_free_space(used_block_group, offset, search_start - offset); |
