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Commit 1661d07c authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: add a tracepoint for f2fs_issue_discard 



This patch adds a tracepoint for f2fs_issue_discard.

Signed-off-by: default avatarJaegeuk Kim <jaegeuk.kim@samsung.com>
parent 37208879

fs/f2fs/segment.c

+1 −0
Original line number Diff line number Diff line
@@ -272,6 +272,7 @@ static void f2fs_issue_discard(struct f2fs_sb_info *sbi, 
	sector_t start = ((sector_t)blkstart) << sbi->log_sectors_per_block;

	sector_t len = ((sector_t)blklen) << sbi->log_sectors_per_block;

	blkdev_issue_discard(sbi->sb->s_bdev, start, len, GFP_NOFS, 0);

	trace_f2fs_issue_discard(sbi->sb, blkstart, blklen);

}



static void add_discard_addrs(struct f2fs_sb_info *sbi,

include/trace/events/f2fs.h

+23 −0
Original line number Diff line number Diff line
@@ -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 */