lightnvm: pblk: add trace events for chunk states

Introduce trace points for tracking chunk states in pblk - this is
useful for inspection of the entire state of the drive, and real handy
for both fw and pblk debugging.

Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c
index 674ba4d1a9f4..61fe22ccc7a1 100644
--- a/drivers/lightnvm/pblk-write.c
+++ b/drivers/lightnvm/pblk-write.c
@@ -16,6 +16,7 @@
  */
 
 #include "pblk.h"
+#include "pblk-trace.h"
 
 static unsigned long pblk_end_w_bio(struct pblk *pblk, struct nvm_rq *rqd,
                                     struct pblk_c_ctx *c_ctx)
@@ -251,11 +252,13 @@ static void pblk_end_io_write(struct nvm_rq *rqd)
         if (rqd->error) {
                 pblk_end_w_fail(pblk, rqd);
                 return;
-        }
+        } else {
+                if (trace_pblk_chunk_state_enabled())
+                        pblk_check_chunk_state_update(pblk, rqd);
 #ifdef CONFIG_NVM_PBLK_DEBUG
-        else
                 WARN_ONCE(rqd->bio->bi_status, "pblk: corrupted write error\n");
 #endif
+        }
 
         pblk_complete_write(pblk, rqd, c_ctx);
         atomic_dec(&pblk->inflight_io);
@@ -276,6 +279,9 @@ static void pblk_end_io_write_meta(struct nvm_rq *rqd)
                 pblk_log_write_err(pblk, rqd);
                 pblk_err(pblk, "metadata I/O failed. Line %d\n", line->id);
                 line->w_err_gc->has_write_err = 1;
+        } else {
+                if (trace_pblk_chunk_state_enabled())
+                        pblk_check_chunk_state_update(pblk, rqd);
         }
 
         sync = atomic_add_return(rqd->nr_ppas, &emeta->sync);