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>
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@ -2516,10 +2516,12 @@ int btrfs_qgroup_reserve_data(struct inode *inode, u64 start, u64 len)
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changeset.bytes_changed = 0;
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changeset.range_changed = ulist_alloc(GFP_NOFS);
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ret = set_record_extent_bits(&BTRFS_I(inode)->io_tree, start,
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start + len -1, EXTENT_QGROUP_RESERVED, GFP_NOFS,
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&changeset);
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trace_btrfs_qgroup_reserve_data(inode, start, len,
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changeset.bytes_changed,
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QGROUP_RESERVE);
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if (ret < 0)
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goto cleanup;
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ret = qgroup_reserve(root, changeset.bytes_changed);
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@ -2544,6 +2546,7 @@ static int __btrfs_qgroup_release_data(struct inode *inode, u64 start, u64 len,
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int free)
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{
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struct extent_changeset changeset;
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int trace_op = QGROUP_RELEASE;
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int ret;
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changeset.bytes_changed = 0;
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@ -2557,8 +2560,12 @@ static int __btrfs_qgroup_release_data(struct inode *inode, u64 start, u64 len,
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if (ret < 0)
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goto out;
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if (free)
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if (free) {
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qgroup_free(BTRFS_I(inode)->root, changeset.bytes_changed);
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trace_op = QGROUP_FREE;
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}
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trace_btrfs_qgroup_release_data(inode, start, len,
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changeset.bytes_changed, trace_op);
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out:
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ulist_free(changeset.range_changed);
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return ret;
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@ -33,6 +33,13 @@ struct btrfs_qgroup_extent_record {
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struct ulist *old_roots;
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};
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/*
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* For qgroup event trace points only
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*/
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#define QGROUP_RESERVE (1<<0)
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#define QGROUP_RELEASE (1<<1)
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#define QGROUP_FREE (1<<2)
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int btrfs_quota_enable(struct btrfs_trans_handle *trans,
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struct btrfs_fs_info *fs_info);
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int btrfs_quota_disable(struct btrfs_trans_handle *trans,
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@ -81,6 +88,7 @@ static inline void btrfs_qgroup_free_delayed_ref(struct btrfs_fs_info *fs_info,
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u64 ref_root, u64 num_bytes)
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{
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btrfs_qgroup_free_refroot(fs_info, ref_root, num_bytes);
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trace_btrfs_qgroup_free_delayed_ref(ref_root, num_bytes);
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}
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void assert_qgroups_uptodate(struct btrfs_trans_handle *trans);
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@ -1117,6 +1117,119 @@ DEFINE_EVENT(btrfs__workqueue_done, btrfs_workqueue_destroy,
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TP_ARGS(wq)
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);
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DECLARE_EVENT_CLASS(btrfs__qgroup_data_map,
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TP_PROTO(struct inode *inode, u64 free_reserved),
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TP_ARGS(inode, free_reserved),
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TP_STRUCT__entry(
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__field( u64, rootid )
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__field( unsigned long, ino )
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__field( u64, free_reserved )
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),
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TP_fast_assign(
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__entry->rootid = BTRFS_I(inode)->root->objectid;
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__entry->ino = inode->i_ino;
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__entry->free_reserved = free_reserved;
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),
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TP_printk("rootid=%llu, ino=%lu, free_reserved=%llu",
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__entry->rootid, __entry->ino, __entry->free_reserved)
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);
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DEFINE_EVENT(btrfs__qgroup_data_map, btrfs_qgroup_init_data_rsv_map,
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TP_PROTO(struct inode *inode, u64 free_reserved),
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TP_ARGS(inode, free_reserved)
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);
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DEFINE_EVENT(btrfs__qgroup_data_map, btrfs_qgroup_free_data_rsv_map,
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TP_PROTO(struct inode *inode, u64 free_reserved),
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TP_ARGS(inode, free_reserved)
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);
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#define BTRFS_QGROUP_OPERATIONS \
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{ QGROUP_RESERVE, "reserve" }, \
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{ QGROUP_RELEASE, "release" }, \
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{ QGROUP_FREE, "free" }
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DECLARE_EVENT_CLASS(btrfs__qgroup_rsv_data,
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TP_PROTO(struct inode *inode, u64 start, u64 len, u64 reserved, int op),
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TP_ARGS(inode, start, len, reserved, op),
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TP_STRUCT__entry(
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__field( u64, rootid )
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__field( unsigned long, ino )
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__field( u64, start )
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__field( u64, len )
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__field( u64, reserved )
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__field( int, op )
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),
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TP_fast_assign(
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__entry->rootid = BTRFS_I(inode)->root->objectid;
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__entry->ino = inode->i_ino;
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__entry->start = start;
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__entry->len = len;
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__entry->reserved = reserved;
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__entry->op = op;
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),
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TP_printk("root=%llu, ino=%lu, start=%llu, len=%llu, reserved=%llu, op=%s",
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__entry->rootid, __entry->ino, __entry->start, __entry->len,
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__entry->reserved,
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__print_flags((unsigned long)__entry->op, "",
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BTRFS_QGROUP_OPERATIONS)
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)
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);
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DEFINE_EVENT(btrfs__qgroup_rsv_data, btrfs_qgroup_reserve_data,
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TP_PROTO(struct inode *inode, u64 start, u64 len, u64 reserved, int op),
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TP_ARGS(inode, start, len, reserved, op)
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);
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DEFINE_EVENT(btrfs__qgroup_rsv_data, btrfs_qgroup_release_data,
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TP_PROTO(struct inode *inode, u64 start, u64 len, u64 reserved, int op),
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TP_ARGS(inode, start, len, reserved, op)
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);
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DECLARE_EVENT_CLASS(btrfs__qgroup_delayed_ref,
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TP_PROTO(u64 ref_root, u64 reserved),
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TP_ARGS(ref_root, reserved),
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TP_STRUCT__entry(
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__field( u64, ref_root )
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__field( u64, reserved )
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),
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TP_fast_assign(
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__entry->ref_root = ref_root;
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__entry->reserved = reserved;
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),
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TP_printk("root=%llu, reserved=%llu, op=free",
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__entry->ref_root, __entry->reserved)
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);
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DEFINE_EVENT(btrfs__qgroup_delayed_ref, btrfs_qgroup_free_delayed_ref,
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TP_PROTO(u64 ref_root, u64 reserved),
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TP_ARGS(ref_root, reserved)
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);
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#endif /* _TRACE_BTRFS_H */
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/* This part must be outside protection */
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