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ocfs2: Add trace event for trim. 

Add the corresponding trace event for trim.

Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
This commit is contained in:
Tao Ma 2011-05-23 10:36:45 +08:00 committed by Joel Becker
parent 55e67872b6
commit 10fca35ff1
2 changed files with 32 additions and 0 deletions
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7
fs/ocfs2/alloc.c
View File

@ -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)

25
fs/ocfs2/ocfs2_trace.h
View File

@ -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. */