Commit 10fca35f authored by Tao Ma's avatar Tao Ma Committed by Joel Becker
Browse files

ocfs2: Add trace event for trim. 



Add the corresponding trace event for trim.

Signed-off-by: default avatarTao Ma <boyu.mt@taobao.com>
Signed-off-by: default avatarJoel Becker <jlbec@evilplan.org>
parent 55e67872

fs/ocfs2/alloc.c

+7 −0
Original line number Diff line number Diff line
@@ -7196,6 +7196,8 @@ static int ocfs2_trim_extent(struct super_block *sb, 
	discard = le64_to_cpu(gd->bg_blkno) +

			ocfs2_clusters_to_blocks(sb, start);



	trace_ocfs2_trim_extent(sb, (unsigned long long)discard, bcount);



	return sb_issue_discard(sb, discard, bcount, GFP_NOFS, 0);

}
@@ -7209,6 +7211,9 @@ static int ocfs2_trim_group(struct super_block *sb, 
	if (le16_to_cpu(gd->bg_free_bits_count) < minbits)

		return 0;



	trace_ocfs2_trim_group((unsigned long long)le64_to_cpu(gd->bg_blkno),

			       start, max, minbits);



	while (start < max) {

		start = ocfs2_find_next_zero_bit(bitmap, max, start);

		if (start >= max)
@@ -7292,6 +7297,8 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range) 
	if (start + len > le32_to_cpu(main_bm->i_clusters))

		len = le32_to_cpu(main_bm->i_clusters) - start;



	trace_ocfs2_trim_fs(start, len, minlen);



	/* Determine first and last group to examine based on start and len */

	first_group = ocfs2_which_cluster_group(main_bm_inode, start);

	if (first_group == osb->first_cluster_group_blkno)

fs/ocfs2/ocfs2_trace.h

+25 −0
Original line number Diff line number Diff line
@@ -688,6 +688,31 @@ TRACE_EVENT(ocfs2_cache_block_dealloc, 
		  __entry->blkno, __entry->bit)

);



TRACE_EVENT(ocfs2_trim_extent,

	TP_PROTO(struct super_block *sb, unsigned long long blk,

		 unsigned long long count),

	TP_ARGS(sb, blk, count),

	TP_STRUCT__entry(

		__field(int, dev_major)

		__field(int, dev_minor)

		__field(unsigned long long, blk)

		__field(__u64,	count)

	),

	TP_fast_assign(

		__entry->dev_major = MAJOR(sb->s_dev);

		__entry->dev_minor = MINOR(sb->s_dev);

		__entry->blk = blk;

		__entry->count = count;

	),

	TP_printk("%d %d %llu %llu",

		  __entry->dev_major, __entry->dev_minor,

		  __entry->blk, __entry->count)

);



DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_trim_group);



DEFINE_OCFS2_ULL_ULL_ULL_EVENT(ocfs2_trim_fs);



/* End of trace events for fs/ocfs2/alloc.c. */



/* Trace events for fs/ocfs2/localalloc.c. */