Signed-off-by: Kirill Tkhai <ktk...@virtuozzo.com>
---
drivers/md/dm-ploop-cmd.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/md/dm-ploop-cmd.c b/drivers/md/dm-ploop-cmd.c
index 8201b1a4c8b2..ad6635b1d14c 100644
--- a/drivers/md/dm-ploop-cmd.c
+++ b/drivers/md/dm-ploop-cmd.c
@@ -817,6 +817,14 @@ static void process_notify_delta_merged(struct ploop
*ploop,
u8 level = cmd->notify_delta_merged.level;
struct file *file;
u8 *bat_levels;
+ int ret;
+
+ force_defer_bio_count_inc(ploop);
+ ret = ploop_inflight_bios_ref_switch(ploop, true);
+ if (ret) {
+ cmd->retval = ret;
+ goto out;
+ }
bat_entries = ploop->bat_entries;
bat_levels = ploop->bat_levels;
@@ -853,10 +861,10 @@ static void process_notify_delta_merged(struct ploop
*ploop,
ploop->deltas[--ploop->nr_deltas].file = NULL;
write_unlock_irq(&ploop->bat_rwlock);
- ploop_inflight_bios_ref_switch(ploop, false);
fput(file);
-
cmd->retval = 0;
+out:
+ force_defer_bio_count_dec(ploop);
complete(&cmd->comp); /* Last touch of cmd memory */
}
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