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authorQu Wenruo <wqu@suse.com>2018-02-28 15:32:47 +0800
committerMike Snitzer <snitzer@redhat.com>2018-04-03 15:04:17 -0400
commite5c4cb9b1b78edb5bd42a9bd7315a0d7b842ac71 (patch)
tree7550494a031b4431d62e596dbcc13223a8166dc6 /drivers/md
parente16b4f99f0f79682a7efe191a8ce694d87ca9fc8 (diff)
downloadlinux-e5c4cb9b1b78edb5bd42a9bd7315a0d7b842ac71.tar.bz2
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>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-log-writes.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
index e4c015dfef43..fefe6719a64d 100644
--- a/drivers/md/dm-log-writes.c
+++ b/drivers/md/dm-log-writes.c
@@ -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));