ext4: Add new ext4 trim tracepoints (b3d4c2b1) · Commits · 戴 / test

fs/ext4/mballoc.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -4780,6 +4780,8 @@ static void ext4_trim_extent(struct super_block *sb, int start, int count,
		{
		struct ext4_free_extent ex;

		trace_ext4_trim_extent(sb, group, start, count);

		assert_spin_locked(ext4_group_lock_ptr(sb, group));

		ex.fe_start = start;
		@@ -4825,6 +4827,8 @@ ext4_trim_all_free(struct super_block *sb, ext4_group_t group,
		struct ext4_buddy e4b;
		int ret;

		trace_ext4_trim_all_free(sb, group, start, max);

		ret = ext4_mb_load_buddy(sb, group, &e4b);
		if (ret) {
		ext4_error(sb, "Error in loading buddy "

+49 −0

Original line number	Diff line number	Diff line
		@@ -1542,6 +1542,55 @@ TRACE_EVENT(ext4_journal_start,
		__entry->nblocks, (void *)__entry->ip)
		);

		DECLARE_EVENT_CLASS(ext4__trim,
		TP_PROTO(struct super_block *sb,
		ext4_group_t group,
		ext4_grpblk_t start,
		ext4_grpblk_t len),

		TP_ARGS(sb, group, start, len),

		TP_STRUCT__entry(
		__field( int, dev_major )
		__field( int, dev_minor )
		__field( __u32, group )
		__field( int, start )
		__field( int, len )
		),

		TP_fast_assign(
		__entry->dev_major = MAJOR(sb->s_dev);
		__entry->dev_minor = MINOR(sb->s_dev);
		__entry->group = group;
		__entry->start = start;
		__entry->len = len;
		),

		TP_printk("dev %d,%d group %u, start %d, len %d",
		__entry->dev_major, __entry->dev_minor,
		__entry->group, __entry->start, __entry->len)
		);

		DEFINE_EVENT(ext4__trim, ext4_trim_extent,

		TP_PROTO(struct super_block *sb,
		ext4_group_t group,
		ext4_grpblk_t start,
		ext4_grpblk_t len),

		TP_ARGS(sb, group, start, len)
		);

		DEFINE_EVENT(ext4__trim, ext4_trim_all_free,

		TP_PROTO(struct super_block *sb,
		ext4_group_t group,
		ext4_grpblk_t start,
		ext4_grpblk_t len),

		TP_ARGS(sb, group, start, len)
		);

		#endif /* _TRACE_EXT4_H */

		/* This part must be outside protection */