iommu/fsl: Remove unnecessary 'fsl-pamu' prefixes

[platform/adaptation/renesas_rcar/renesas_kernel.git] / block / blk-settings.c

diff --git a/block/blk-settings.c b/block/blk-settings.c
index 565a678..c50ecf0 100644 (file)
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -113,6 +113,7 @@ void blk_set_default_limits(struct queue_limits *lim)
        lim->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK;
        lim->max_segment_size = BLK_MAX_SEGMENT_SIZE;
        lim->max_sectors = lim->max_hw_sectors = BLK_SAFE_MAX_SECTORS;
+       lim->max_write_same_sectors = 0;
        lim->max_discard_sectors = 0;
        lim->discard_granularity = 0;
        lim->discard_alignment = 0;
@@ -144,6 +145,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
        lim->max_segments = USHRT_MAX;
        lim->max_hw_sectors = UINT_MAX;
        lim->max_sectors = UINT_MAX;
+       lim->max_write_same_sectors = UINT_MAX;
 }
 EXPORT_SYMBOL(blk_set_stacking_limits);
 
@@ -286,6 +288,18 @@ void blk_queue_max_discard_sectors(struct request_queue *q,
 EXPORT_SYMBOL(blk_queue_max_discard_sectors);
 
 /**
+ * blk_queue_max_write_same_sectors - set max sectors for a single write same
+ * @q:  the request queue for the device
+ * @max_write_same_sectors: maximum number of sectors to write per command
+ **/
+void blk_queue_max_write_same_sectors(struct request_queue *q,
+                                     unsigned int max_write_same_sectors)
+{
+       q->limits.max_write_same_sectors = max_write_same_sectors;
+}
+EXPORT_SYMBOL(blk_queue_max_write_same_sectors);
+
+/**
  * blk_queue_max_segments - set max hw segments for a request for this queue
  * @q:  the request queue for the device
  * @max_segments:  max number of segments
@@ -510,6 +524,8 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 
        t->max_sectors = min_not_zero(t->max_sectors, b->max_sectors);
        t->max_hw_sectors = min_not_zero(t->max_hw_sectors, b->max_hw_sectors);
+       t->max_write_same_sectors = min(t->max_write_same_sectors,
+                                       b->max_write_same_sectors);
        t->bounce_pfn = min_not_zero(t->bounce_pfn, b->bounce_pfn);
 
        t->seg_boundary_mask = min_not_zero(t->seg_boundary_mask,
@@ -595,7 +611,7 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
                        bottom = b->discard_granularity + alignment;
 
                        /* Verify that top and bottom intervals line up */
-                       if (max(top, bottom) & (min(top, bottom) - 1))
+                       if ((max(top, bottom) % min(top, bottom)) != 0)
                                t->discard_misaligned = 1;
                }
 
@@ -603,8 +619,8 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
                                                      b->max_discard_sectors);
                t->discard_granularity = max(t->discard_granularity,
                                             b->discard_granularity);
-               t->discard_alignment = lcm(t->discard_alignment, alignment) &
-                       (t->discard_granularity - 1);
+               t->discard_alignment = lcm(t->discard_alignment, alignment) %
+                       t->discard_granularity;
        }
 
        return ret;