diff options
| author | Qu Wenruo <quwenruo@cn.fujitsu.com> | 2015-09-28 11:57:53 +0300 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2015-10-22 04:41:08 +0300 |
| commit | 81fb6f77a02678ddb0755c24f83c4ed5207da046 (patch) | |
| tree | 751927a8dcfbdff1aee42368b0b5fc7941446d10 /fs | |
| parent | b9d0b38928e21560550bd3c1a278d6e004d3bde6 (diff) | |
| download | linux-81fb6f77a02678ddb0755c24f83c4ed5207da046.tar.xz | |
btrfs: qgroup: Add new trace point for qgroup data reserve
Now each qgroup reserve for data will has its ftrace event for better
debugging.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/qgroup.c | 11 | ||||
| -rw-r--r-- | fs/btrfs/qgroup.h | 8 |
2 files changed, 17 insertions, 2 deletions
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 7d5339da01b8..879343c959d9 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -2516,10 +2516,12 @@ int btrfs_qgroup_reserve_data(struct inode *inode, u64 start, u64 len) changeset.bytes_changed = 0; changeset.range_changed = ulist_alloc(GFP_NOFS); - ret = set_record_extent_bits(&BTRFS_I(inode)->io_tree, start, start + len -1, EXTENT_QGROUP_RESERVED, GFP_NOFS, &changeset); + trace_btrfs_qgroup_reserve_data(inode, start, len, + changeset.bytes_changed, + QGROUP_RESERVE); if (ret < 0) goto cleanup; ret = qgroup_reserve(root, changeset.bytes_changed); @@ -2544,6 +2546,7 @@ static int __btrfs_qgroup_release_data(struct inode *inode, u64 start, u64 len, int free) { struct extent_changeset changeset; + int trace_op = QGROUP_RELEASE; int ret; changeset.bytes_changed = 0; @@ -2557,8 +2560,12 @@ static int __btrfs_qgroup_release_data(struct inode *inode, u64 start, u64 len, if (ret < 0) goto out; - if (free) + if (free) { qgroup_free(BTRFS_I(inode)->root, changeset.bytes_changed); + trace_op = QGROUP_FREE; + } + trace_btrfs_qgroup_release_data(inode, start, len, + changeset.bytes_changed, trace_op); out: ulist_free(changeset.range_changed); return ret; diff --git a/fs/btrfs/qgroup.h b/fs/btrfs/qgroup.h index adb03da3d298..686b60f60b61 100644 --- a/fs/btrfs/qgroup.h +++ b/fs/btrfs/qgroup.h @@ -33,6 +33,13 @@ struct btrfs_qgroup_extent_record { struct ulist *old_roots; }; +/* + * For qgroup event trace points only + */ +#define QGROUP_RESERVE (1<<0) +#define QGROUP_RELEASE (1<<1) +#define QGROUP_FREE (1<<2) + int btrfs_quota_enable(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info); int btrfs_quota_disable(struct btrfs_trans_handle *trans, @@ -81,6 +88,7 @@ static inline void btrfs_qgroup_free_delayed_ref(struct btrfs_fs_info *fs_info, u64 ref_root, u64 num_bytes) { btrfs_qgroup_free_refroot(fs_info, ref_root, num_bytes); + trace_btrfs_qgroup_free_delayed_ref(ref_root, num_bytes); } void assert_qgroups_uptodate(struct btrfs_trans_handle *trans); |