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authorLars Ellenberg <lars.ellenberg@linbit.com>2016-06-14 01:26:22 +0300
committerJens Axboe <axboe@fb.com>2016-06-14 06:43:05 +0300
commit7435e9018f9141e38d856229475335c8e757a497 (patch)
tree9d2d238d551891578296bbeee33ac0818dcf88a7 /drivers/block/drbd/drbd_int.h
parent69ba1ee9360a6ed4adb3168fd93db430a4276332 (diff)
downloadlinux-7435e9018f9141e38d856229475335c8e757a497.tar.xz
drbd: zero-out partial unaligned discards on local backend
For consistency, also zero-out partial unaligned chunks of discard requests on the local backend. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block/drbd/drbd_int.h')
-rw-r--r--drivers/block/drbd/drbd_int.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index f49ff861bfd8..0b5a658882b2 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1553,6 +1553,8 @@ extern void start_resync_timer_fn(unsigned long data);
extern void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req);
/* drbd_receiver.c */
+extern int drbd_issue_discard_or_zero_out(struct drbd_device *device,
+ sector_t start, unsigned int nr_sectors, bool discard);
extern int drbd_receiver(struct drbd_thread *thi);
extern int drbd_ack_receiver(struct drbd_thread *thi);
extern void drbd_send_ping_wf(struct work_struct *ws);