4 files changed, 10 insertions, 7 deletions

diff --git a/drivers/lightnvm/pblk-cache.c b/drivers/lightnvm/pblk-cache.c
index 29a23111b31c..b1c6d7eb6115 100644
--- a/drivers/lightnvm/pblk-cache.c
+++ b/drivers/lightnvm/pblk-cache.c
@@ -44,13 +44,15 @@ retry:
                 goto out;
         }
 
-        if (unlikely(!bio_has_data(bio)))
-                goto out;
-
         pblk_ppa_set_empty(&w_ctx.ppa);
         w_ctx.flags = flags;
-        if (bio->bi_opf & REQ_PREFLUSH)
+        if (bio->bi_opf & REQ_PREFLUSH) {
                 w_ctx.flags |= PBLK_FLUSH_ENTRY;
+                pblk_write_kick(pblk);
+        }
+
+        if (unlikely(!bio_has_data(bio)))
+                goto out;
 
         for (i = 0; i < nr_entries; i++) {
                 void *data = bio_data(bio);
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 99036befb571..a5750534efed 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -322,7 +322,7 @@ err:
         return -1;
 }
 
-static void pblk_write_kick(struct pblk *pblk)
+void pblk_write_kick(struct pblk *pblk)
 {
         wake_up_process(pblk->writer_ts);
         mod_timer(&pblk->wtimer, jiffies + msecs_to_jiffies(1000));
diff --git a/drivers/lightnvm/pblk-rb.c b/drivers/lightnvm/pblk-rb.c
index 1b74ec51a4ad..00cd1f20a196 100644
--- a/drivers/lightnvm/pblk-rb.c
+++ b/drivers/lightnvm/pblk-rb.c
@@ -349,7 +349,7 @@ void pblk_rb_write_entry_gc(struct pblk_rb *rb, void *data,
 }
 
 static int pblk_rb_flush_point_set(struct pblk_rb *rb, struct bio *bio,
-                                  unsigned int pos)
+                                   unsigned int pos)
 {
         struct pblk_rb_entry *entry;
         unsigned int sync, flush_point;
@@ -419,7 +419,7 @@ void pblk_rb_flush(struct pblk_rb *rb)
         if (pblk_rb_flush_point_set(rb, NULL, mem))
                 return;
 
-        pblk_write_should_kick(pblk);
+        pblk_write_kick(pblk);
 }
 
 static int pblk_rb_may_write_flush(struct pblk_rb *rb, unsigned int nr_entries,
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index 725bc1bfa849..34cc1d64a9d4 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -851,6 +851,7 @@ void pblk_map_rq(struct pblk *pblk, struct nvm_rq *rqd, unsigned int sentry,
 int pblk_write_ts(void *data);
 void pblk_write_timer_fn(struct timer_list *t);
 void pblk_write_should_kick(struct pblk *pblk);
+void pblk_write_kick(struct pblk *pblk);
 
 /*
  * pblk read path