[v3,5/5] dm-writecache: output seq_count within status
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Message ID 20190131022955.9920-6-yehs2007@zoho.com
State New
Headers show
Series
  • Optimize writecache when using pmem as cache
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Commit Message

Huaisheng Ye Jan. 31, 2019, 2:29 a.m. UTC
From: Huaisheng Ye <yehs1@lenovo.com>

seq_count is important for flush operations, output it within status
for debugging and analyzing code behavior.

Signed-off-by: Huaisheng Ye <yehs1@lenovo.com>
---
 drivers/md/dm-writecache.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch
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diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index 2c1e825..3396710 100644
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -2231,9 +2231,9 @@  static void writecache_status(struct dm_target *ti, status_type_t type,
 
 	switch (type) {
 	case STATUSTYPE_INFO:
-		DMEMIT("%ld %llu %llu %llu", writecache_has_error(wc),
+		DMEMIT("%ld %llu %llu %llu %llu", writecache_has_error(wc),
 		       (unsigned long long)wc->n_blocks, (unsigned long long)wc->freelist_size,
-		       (unsigned long long)wc->writeback_size);
+		       (unsigned long long)wc->writeback_size, wc->seq_count);
 		break;
 	case STATUSTYPE_TABLE:
 		DMEMIT("%c %s %s %u ", WC_MODE_PMEM(wc) ? 'p' : 's',