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| author | Josef Bacik | 2016-03-25 18:25:54 +0100 |
|---|---|---|
| committer | David Sterba | 2016-07-07 18:45:53 +0200 |
| commit | c51e7bb1845079fda515a7acf0514e289aa6a07c (patch) | |
| tree | 91d7507edb873f71735e8fcbaabc6f7de2251a20 /fs/btrfs/extent-tree.c | |
| parent | Btrfs: introduce ticketed enospc infrastructure (diff) | |
| download | kernel-qcow2-linux-c51e7bb1845079fda515a7acf0514e289aa6a07c.tar.gz kernel-qcow2-linux-c51e7bb1845079fda515a7acf0514e289aa6a07c.tar.xz kernel-qcow2-linux-c51e7bb1845079fda515a7acf0514e289aa6a07c.zip | |
Btrfs: trace pinned extents
Pinned extents are an important metric to keep track of for enospc.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 2c17b621a661..9aa64f1aa413 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -6246,6 +6246,9 @@ static int update_block_group(struct btrfs_trans_handle *trans, spin_unlock(&cache->lock); spin_unlock(&cache->space_info->lock); + trace_btrfs_space_reservation(root->fs_info, "pinned", + cache->space_info->flags, + num_bytes, 1); set_extent_dirty(info->pinned_extents, bytenr, bytenr + num_bytes - 1, GFP_NOFS | __GFP_NOFAIL); @@ -6320,6 +6323,8 @@ static int pin_down_extent(struct btrfs_root *root, spin_unlock(&cache->lock); spin_unlock(&cache->space_info->lock); + trace_btrfs_space_reservation(root->fs_info, "pinned", + cache->space_info->flags, num_bytes, 1); set_extent_dirty(root->fs_info->pinned_extents, bytenr, bytenr + num_bytes - 1, GFP_NOFS | __GFP_NOFAIL); if (reserved) @@ -6678,6 +6683,9 @@ static int unpin_extent_range(struct btrfs_root *root, u64 start, u64 end, spin_lock(&cache->lock); cache->pinned -= len; space_info->bytes_pinned -= len; + + trace_btrfs_space_reservation(fs_info, "pinned", + space_info->flags, len, 0); space_info->max_extent_size = 0; percpu_counter_add(&space_info->total_bytes_pinned, -len); if (cache->ro) { |