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authorQu Wenruo <quwenruo@cn.fujitsu.com>2015-09-28 16:57:53 +0800
committerChris Mason <clm@fb.com>2015-10-21 18:41:08 -0700
commit81fb6f77a02678ddb0755c24f83c4ed5207da046 (patch)
tree751927a8dcfbdff1aee42368b0b5fc7941446d10 /fs/btrfs/qgroup.c
parentb9d0b38928e21560550bd3c1a278d6e004d3bde6 (diff)
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/btrfs/qgroup.c')
-rw-r--r--fs/btrfs/qgroup.c11
1 files changed, 9 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;