block: autoconvert trivial BKL users to private mutex

[net-next-2.6.git] / drivers / staging / hv / blkvsc_drv.c

diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c
index f7ea2a3efed75c0f6565670889d3c895ed9e1c26..8284297b30e9bbb4951ae71c53be5d5565677155 100644 (file)
--- a/drivers/staging/hv/blkvsc_drv.c
+++ b/drivers/staging/hv/blkvsc_drv.c
@@ -25,6 +25,7 @@
 #include <linux/major.h>
 #include <linux/delay.h>
 #include <linux/hdreg.h>
+#include <linux/mutex.h>
 #include <linux/slab.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
@@ -123,6 +124,7 @@ struct blkvsc_driver_context {
 };
 
 /* Static decl */
+static DEFINE_MUTEX(blkvsc_mutex);
 static int blkvsc_probe(struct device *dev);
 static int blkvsc_remove(struct device *device);
 static void blkvsc_shutdown(struct device *device);
@@ -805,7 +807,8 @@ static void blkvsc_init_rw(struct blkvsc_request *blkvsc_req)
                        blkvsc_req->cmnd[0] = READ_16;
                }
 
-               blkvsc_req->cmnd[1] |= blk_fua_rq(blkvsc_req->req) ? 0x8 : 0;
+               blkvsc_req->cmnd[1] |=
+                       (blkvsc_req->req->cmd_flags & REQ_FUA) ? 0x8 : 0;
 
                *(unsigned long long *)&blkvsc_req->cmnd[2] =
                                cpu_to_be64(blkvsc_req->sector_start);
@@ -821,7 +824,8 @@ static void blkvsc_init_rw(struct blkvsc_request *blkvsc_req)
                        blkvsc_req->cmnd[0] = READ_10;
                }
 
-               blkvsc_req->cmnd[1] |= blk_fua_rq(blkvsc_req->req) ? 0x8 : 0;
+               blkvsc_req->cmnd[1] |=
+                       (blkvsc_req->req->cmd_flags & REQ_FUA) ? 0x8 : 0;
 
                *(unsigned int *)&blkvsc_req->cmnd[2] =
                                cpu_to_be32(blkvsc_req->sector_start);
@@ -1268,7 +1272,7 @@ static void blkvsc_request(struct request_queue *queue)
                DPRINT_DBG(BLKVSC_DRV, "- req %p\n", req);
 
                blkdev = req->rq_disk->private_data;
-               if (blkdev->shutting_down || !blk_fs_request(req) ||
+               if (blkdev->shutting_down || req->cmd_type != REQ_TYPE_FS ||
                    blkdev->media_not_present) {
                        __blk_end_request_cur(req, 0);
                        continue;
@@ -1306,6 +1310,7 @@ static int blkvsc_open(struct block_device *bdev, fmode_t mode)
        DPRINT_DBG(BLKVSC_DRV, "- users %d disk %s\n", blkdev->users,
                   blkdev->gd->disk_name);
 
+       mutex_lock(&blkvsc_mutex);
        spin_lock(&blkdev->lock);
 
        if (!blkdev->users && blkdev->device_type == DVD_TYPE) {
@@ -1317,6 +1322,7 @@ static int blkvsc_open(struct block_device *bdev, fmode_t mode)
        blkdev->users++;
 
        spin_unlock(&blkdev->lock);
+       mutex_unlock(&blkvsc_mutex);
        return 0;
 }
 
@@ -1327,6 +1333,7 @@ static int blkvsc_release(struct gendisk *disk, fmode_t mode)
        DPRINT_DBG(BLKVSC_DRV, "- users %d disk %s\n", blkdev->users,
                   blkdev->gd->disk_name);
 
+       mutex_lock(&blkvsc_mutex);
        spin_lock(&blkdev->lock);
        if (blkdev->users == 1) {
                spin_unlock(&blkdev->lock);
@@ -1337,6 +1344,7 @@ static int blkvsc_release(struct gendisk *disk, fmode_t mode)
        blkdev->users--;
 
        spin_unlock(&blkdev->lock);
+       mutex_unlock(&blkvsc_mutex);
        return 0;
 }