btrfs: add trace for qgroup accounting (d3982100) · Commits · 戴 / test

fs/btrfs/qgroup.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1335,6 +1335,8 @@ int btrfs_qgroup_record_ref(struct btrfs_trans_handle *trans,
		INIT_LIST_HEAD(&oper->elem.list);
		oper->elem.seq = 0;

		trace_btrfs_qgroup_record_ref(oper);

		if (type == BTRFS_QGROUP_OPER_SUB_SUBTREE) {
		/*
		* If any operation for this bytenr/ref_root combo
		@@ -2077,6 +2079,8 @@ static int btrfs_qgroup_account(struct btrfs_trans_handle *trans,

		ASSERT(is_fstree(oper->ref_root));

		trace_btrfs_qgroup_account(oper);

		switch (oper->type) {
		case BTRFS_QGROUP_OPER_ADD_EXCL:
		case BTRFS_QGROUP_OPER_SUB_EXCL:

fs/btrfs/super.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -60,6 +60,7 @@
		#include "backref.h"
		#include "tests/btrfs-tests.h"

		#include "qgroup.h"
		#define CREATE_TRACE_POINTS
		#include <trace/events/btrfs.h>

include/trace/events/btrfs.h

+56 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@ struct map_lookup;
		struct extent_buffer;
		struct btrfs_work;
		struct __btrfs_workqueue;
		struct btrfs_qgroup_operation;

		#define show_ref_type(type) \
		__print_symbolic(type, \
		@@ -1119,6 +1120,61 @@ DEFINE_EVENT(btrfs__workqueue_done, btrfs_workqueue_destroy,
		TP_ARGS(wq)
		);

		#define show_oper_type(type) \
		__print_symbolic(type, \
		{ BTRFS_QGROUP_OPER_ADD_EXCL, "OPER_ADD_EXCL" }, \
		{ BTRFS_QGROUP_OPER_ADD_SHARED, "OPER_ADD_SHARED" }, \
		{ BTRFS_QGROUP_OPER_SUB_EXCL, "OPER_SUB_EXCL" }, \
		{ BTRFS_QGROUP_OPER_SUB_SHARED, "OPER_SUB_SHARED" })

		DECLARE_EVENT_CLASS(btrfs_qgroup_oper,

		TP_PROTO(struct btrfs_qgroup_operation *oper),

		TP_ARGS(oper),

		TP_STRUCT__entry(
		__field( u64, ref_root )
		__field( u64, bytenr )
		__field( u64, num_bytes )
		__field( u64, seq )
		__field( int, type )
		__field( u64, elem_seq )
		),

		TP_fast_assign(
		__entry->ref_root = oper->ref_root;
		__entry->bytenr = oper->bytenr,
		__entry->num_bytes = oper->num_bytes;
		__entry->seq = oper->seq;
		__entry->type = oper->type;
		__entry->elem_seq = oper->elem.seq;
		),

		TP_printk("ref_root = %llu, bytenr = %llu, num_bytes = %llu, "
		"seq = %llu, elem.seq = %llu, type = %s",
		(unsigned long long)__entry->ref_root,
		(unsigned long long)__entry->bytenr,
		(unsigned long long)__entry->num_bytes,
		(unsigned long long)__entry->seq,
		(unsigned long long)__entry->elem_seq,
		show_oper_type(__entry->type))
		);

		DEFINE_EVENT(btrfs_qgroup_oper, btrfs_qgroup_account,

		TP_PROTO(struct btrfs_qgroup_operation *oper),

		TP_ARGS(oper)
		);

		DEFINE_EVENT(btrfs_qgroup_oper, btrfs_qgroup_record_ref,

		TP_PROTO(struct btrfs_qgroup_operation *oper),

		TP_ARGS(oper)
		);

		#endif /* _TRACE_BTRFS_H */

		/* This part must be outside protection */

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