linux-kernel - [PATCH 5/9] drbd: don't detour through bd

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200903054104.228829-6-hch@lst.de>
Date:   Thu,  3 Sep 2020 07:41:00 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     dm-devel@...hat.com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        drbd-dev@...ts.linbit.com, linux-ide@...r.kernel.org,
        linux-raid@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-scsi@...r.kernel.org,
        target-devel@...r.kernel.org
Subject: [PATCH 5/9] drbd: don't detour through bd_contains for the gendisk

bd_disk is set on all block devices, including those for partitions.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 drivers/block/drbd/drbd_receiver.c | 2 +-
 drivers/block/drbd/drbd_worker.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 422363daa6180b..2d16fb0905999d 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -2789,7 +2789,7 @@ bool drbd_rs_should_slow_down(struct drbd_device *device, sector_t sector,
 
 bool drbd_rs_c_min_rate_throttle(struct drbd_device *device)
 {
-	struct gendisk *disk = device->ldev->backing_bdev->bd_contains->bd_disk;
+	struct gendisk *disk = device->ldev->backing_bdev->bd_disk;
 	unsigned long db, dt, dbdt;
 	unsigned int c_min_rate;
 	int curr_events;
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 7c903de5c4e103..9107b109ba7bcb 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -1672,7 +1672,7 @@ void drbd_resync_after_changed(struct drbd_device *device)
 
 void drbd_rs_controller_reset(struct drbd_device *device)
 {
-	struct gendisk *disk = device->ldev->backing_bdev->bd_contains->bd_disk;
+	struct gendisk *disk = device->ldev->backing_bdev->bd_disk;
 	struct fifo_buffer *plan;
 
 	atomic_set(&device->rs_sect_in, 0);
-- 
2.28.0