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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: Qu Wenruo <wqu@suse.com>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Qu Wenruo 2018-02-28 15:32:47 +08:00 committed by Mike Snitzer
parent e16b4f99f0
commit e5c4cb9b1b
1 changed files with 8 additions and 4 deletions
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12
drivers/md/dm-log-writes.c
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@ -52,10 +52,11 @@
* in fact we want to do the data and the discard in the order that they
* completed.
*/
#define LOG_FLUSH_FLAG (1 << 0)
#define LOG_FUA_FLAG (1 << 1)
#define LOG_DISCARD_FLAG (1 << 2)
#define LOG_MARK_FLAG (1 << 3)
#define LOG_FLUSH_FLAG (1 << 0)
#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));