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drbd: use blk_set_stacking_limits()

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...instead directly assigning to q->limits.discard_zeroes_data

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>
This commit is contained in:
Philipp Reisner 2014-04-28 18:43:32 +02:00 committed by Jens Axboe
parent 08535466bc
commit c1b3156f12
2 changed files with 7 additions and 7 deletions
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12
drivers/block/drbd/drbd_nl.c
View File

@ -1114,15 +1114,18 @@ static void drbd_setup_queue_param(struct drbd_device *device, unsigned int max_
struct request_queue * const q = device->rq_queue;
unsigned int max_hw_sectors = max_bio_size >> 9;
unsigned int max_segments = 0;
struct request_queue *b = NULL;
if (get_ldev_if_state(device, D_ATTACHING)) {
struct request_queue * const b = device->ldev->backing_bdev->bd_disk->queue;
b = device->ldev->backing_bdev->bd_disk->queue;
max_hw_sectors = min(queue_max_hw_sectors(b), max_bio_size >> 9);
rcu_read_lock();
max_segments = rcu_dereference(device->ldev->disk_conf)->max_bio_bvecs;
rcu_read_unlock();
put_ldev(device);
blk_set_stacking_limits(&q->limits);
blk_queue_max_write_same_sectors(q, 0);
}
blk_queue_logical_block_size(q, 512);
@ -1131,14 +1134,11 @@ static void drbd_setup_queue_param(struct drbd_device *device, unsigned int max_
blk_queue_max_segments(q, max_segments ? max_segments : BLK_MAX_SEGMENTS);
blk_queue_segment_boundary(q, PAGE_CACHE_SIZE-1);
if (get_ldev_if_state(device, D_ATTACHING)) {
struct request_queue * const b = device->ldev->backing_bdev->bd_disk->queue;
if (b) {
struct drbd_connection *connection = first_peer_device(device)->connection;
if (blk_queue_discard(b) &&
(connection->cstate < C_CONNECTED || connection->agreed_features & FF_TRIM)) {
/* inherit from backing queue */
q->limits.discard_zeroes_data = 1;
/* For now, don't allow more than one activity log extent worth of data
* to be discarded in one go. We may need to rework drbd_al_begin_io()
* to allow for even larger discard ranges */

2
include/linux/drbd.h
View File

@ -52,7 +52,7 @@
#endif
extern const char *drbd_buildtag(void);
#define REL_VERSION "8.4.3"
#define REL_VERSION "8.4.4"
#define API_VERSION 1
#define PRO_VERSION_MIN 86
#define PRO_VERSION_MAX 101