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Commit e5c4cb9b authored by Qu Wenruo's avatar Qu Wenruo Committed by Mike Snitzer
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dm log writes: record metadata flag for better flags record 



So developer could distinguish data and metadata bios easier.

Signed-off-by: default avatarQu Wenruo <wqu@suse.com>
Reviewed-by: default avatarJosef Bacik <jbacik@fb.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent e16b4f99

drivers/md/dm-log-writes.c

+8 −4
Original line number Diff line number Diff line
@@ -56,6 +56,7 @@ 
#define LOG_FUA_FLAG		(1 << 1)

#define LOG_DISCARD_FLAG	(1 << 2)

#define LOG_MARK_FLAG		(1 << 3)

#define LOG_METADATA_FLAG	(1 << 4)



#define WRITE_LOG_VERSION 1ULL

#define WRITE_LOG_MAGIC 0x6a736677736872ULL
@@ -699,6 +700,7 @@ static int log_writes_map(struct dm_target *ti, struct bio *bio) 
	bool flush_bio = (bio->bi_opf & REQ_PREFLUSH);

	bool fua_bio = (bio->bi_opf & REQ_FUA);

	bool discard_bio = (bio_op(bio) == REQ_OP_DISCARD);

	bool meta_bio = (bio->bi_opf & REQ_META);



	pb->block = NULL;
@@ -743,6 +745,8 @@ static int log_writes_map(struct dm_target *ti, struct bio *bio) 
		block->flags |= LOG_FUA_FLAG;

	if (discard_bio)

		block->flags |= LOG_DISCARD_FLAG;

	if (meta_bio)

		block->flags |= LOG_METADATA_FLAG;



	block->sector = bio_to_dev_sectors(lc, bio->bi_iter.bi_sector);

	block->nr_sectors = bio_to_dev_sectors(lc, bio_sectors(bio));