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-rw-r--r--block/blk-core.c1
-rw-r--r--block/blk-settings.c9
-rw-r--r--block/blk.h1
3 files changed, 6 insertions, 5 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index 17667159482e..5487912befe8 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -425,7 +425,6 @@ struct request_queue *blk_alloc_queue(int node_id, bool alloc_srcu)
PERCPU_REF_INIT_ATOMIC, GFP_KERNEL))
goto fail_stats;
- blk_queue_dma_alignment(q, 511);
blk_set_default_limits(&q->limits);
q->nr_requests = BLKDEV_DEFAULT_RQ;
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 8bb9eef5310e..8ac1038d0c79 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -57,8 +57,8 @@ void blk_set_default_limits(struct queue_limits *lim)
lim->misaligned = 0;
lim->zoned = BLK_ZONED_NONE;
lim->zone_write_granularity = 0;
+ lim->dma_alignment = 511;
}
-EXPORT_SYMBOL(blk_set_default_limits);
/**
* blk_set_stacking_limits - set default limits for stacking devices
@@ -600,6 +600,7 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
t->io_min = max(t->io_min, b->io_min);
t->io_opt = lcm_not_zero(t->io_opt, b->io_opt);
+ t->dma_alignment = max(t->dma_alignment, b->dma_alignment);
/* Set non-power-of-2 compatible chunk_sectors boundary */
if (b->chunk_sectors)
@@ -773,7 +774,7 @@ EXPORT_SYMBOL(blk_queue_virt_boundary);
**/
void blk_queue_dma_alignment(struct request_queue *q, int mask)
{
- q->dma_alignment = mask;
+ q->limits.dma_alignment = mask;
}
EXPORT_SYMBOL(blk_queue_dma_alignment);
@@ -795,8 +796,8 @@ void blk_queue_update_dma_alignment(struct request_queue *q, int mask)
{
BUG_ON(mask > PAGE_SIZE);
- if (mask > q->dma_alignment)
- q->dma_alignment = mask;
+ if (mask > q->limits.dma_alignment)
+ q->limits.dma_alignment = mask;
}
EXPORT_SYMBOL(blk_queue_update_dma_alignment);
diff --git a/block/blk.h b/block/blk.h
index 5350bf363035..a0c1d31a8fe7 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -324,6 +324,7 @@ void blk_rq_set_mixed_merge(struct request *rq);
bool blk_rq_merge_ok(struct request *rq, struct bio *bio);
enum elv_merge blk_try_merge(struct request *rq, struct bio *bio);
+void blk_set_default_limits(struct queue_limits *lim);
int blk_dev_init(void);
/*