block: Add BLK_ prefix to definitions

Add a BLK_ prefix to block layer constants.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

block/blk-settings.c

@@ -94,7 +94,7 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->max_phys_segments = MAX_PHYS_SEGMENTS;
 	lim->max_hw_segments = MAX_HW_SEGMENTS;
 	lim->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK;
-	lim->max_segment_size = MAX_SEGMENT_SIZE;
+	lim->max_segment_size = BLK_MAX_SEGMENT_SIZE;
 	lim->max_sectors = BLK_DEF_MAX_SECTORS;
 	lim->max_hw_sectors = INT_MAX;
 	lim->max_discard_sectors = 0;
@@ -154,7 +154,7 @@ void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn)
 	q->unplug_timer.data = (unsigned long)q;
 
 	blk_set_default_limits(&q->limits);
-	blk_queue_max_sectors(q, SAFE_MAX_SECTORS);
+	blk_queue_max_sectors(q, BLK_SAFE_MAX_SECTORS);
 
 	/*
 	 * If the caller didn't supply a lock, fall back to our embedded

drivers/block/ps3vram.c

@@ -753,8 +753,8 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
 	blk_queue_make_request(queue, ps3vram_make_request);
 	blk_queue_max_phys_segments(queue, MAX_PHYS_SEGMENTS);
 	blk_queue_max_hw_segments(queue, MAX_HW_SEGMENTS);
-	blk_queue_max_segment_size(queue, MAX_SEGMENT_SIZE);
-	blk_queue_max_sectors(queue, SAFE_MAX_SECTORS);
+	blk_queue_max_segment_size(queue, BLK_MAX_SEGMENT_SIZE);
+	blk_queue_max_sectors(queue, BLK_SAFE_MAX_SECTORS);
 
 	gendisk = alloc_disk(1);
 	if (!gendisk) {

include/linux/blkdev.h

@@ -1016,11 +1016,15 @@ extern int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm);
 #define MAX_PHYS_SEGMENTS 128
 #define MAX_HW_SEGMENTS 128
 #define SAFE_MAX_SECTORS 255
-#define BLK_DEF_MAX_SECTORS 1024
-
 #define MAX_SEGMENT_SIZE	65536
 
-#define BLK_SEG_BOUNDARY_MASK	0xFFFFFFFFUL
+enum blk_default_limits {
+	BLK_MAX_SEGMENTS	= 128,
+	BLK_SAFE_MAX_SECTORS	= 255,
+	BLK_DEF_MAX_SECTORS	= 1024,
+	BLK_MAX_SEGMENT_SIZE	= 65536,
+	BLK_SEG_BOUNDARY_MASK	= 0xFFFFFFFFUL,
+};
 
 #define blkdev_entry_to_request(entry) list_entry((entry), struct request, queuelist)