#include <linux/blkdev.h>
#include <linux/bio.h>
#include <linux/highmem.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/radix-tree.h>
#include <linux/buffer_head.h> /* invalidate_bh_lrus() */
#include <linux/slab.h>
/*
* Look up and return a brd's page for a given sector.
*/
+static DEFINE_MUTEX(brd_mutex);
static struct page *brd_lookup_page(struct brd_device *brd, sector_t sector)
{
pgoff_t idx;
* ram device BLKFLSBUF has special semantics, we want to actually
* release and destroy the ramdisk data.
*/
- lock_kernel();
+ mutex_lock(&brd_mutex);
mutex_lock(&bdev->bd_mutex);
error = -EBUSY;
if (bdev->bd_openers <= 1) {
error = 0;
}
mutex_unlock(&bdev->bd_mutex);
- unlock_kernel();
+ mutex_unlock(&brd_mutex);
return error;
}
if (!brd->brd_queue)
goto out_free_dev;
blk_queue_make_request(brd->brd_queue, brd_make_request);
- blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG);
blk_queue_max_hw_sectors(brd->brd_queue, 1024);
blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY);