This patch adds a tracepoint for f2fs_issue_discard.
Signed-off-by: Jaegeuk Kim <jaegeuk....@samsung.com>
---
fs/f2fs/segment.c | 1 +
include/trace/events/f2fs.h | 23 +++++++++++++++++++++++
2 files changed, 24 insertions(+)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index d021cf3..1f83999 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -274,6 +274,7 @@ static void f2fs_issue_discard(struct f2fs_sb_info *sbi,
blkdev_issue_discard(sbi->sb->s_bdev, sector_addr, sector_len,
GFP_NOFS, 0);
+ trace_f2fs_issue_discard(sbi->sb, blkstart, blklen);
}
static void add_discard_addrs(struct f2fs_sb_info *sbi,
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index e0dc355..47ee70d 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -727,6 +727,29 @@ TRACE_EVENT(f2fs_write_checkpoint,
__entry->msg)
);
+TRACE_EVENT(f2fs_issue_discard,
+
+ TP_PROTO(struct super_block *sb, block_t blkstart, block_t blklen),
+
+ TP_ARGS(sb, blkstart, blklen),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(block_t, blkstart)
+ __field(block_t, blklen)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->blkstart = blkstart;
+ __entry->blklen = blklen;
+ ),
+
+ TP_printk("dev = (%d,%d), blkstart = 0x%llx, blklen = 0x%llx",
+ show_dev(__entry),
+ (unsigned long long)__entry->blkstart,
+ (unsigned long long)__entry->blklen)
+);
#endif /* _TRACE_F2FS_H */
/* This part must be outside protection */
--
1.8.4.474.g128a96c
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