diff options
Diffstat (limited to 'drivers/block/brd.c')
| -rw-r--r-- | drivers/block/brd.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/block/brd.c b/drivers/block/brd.c index b2391bbd7e5a..8028a3a7e7fd 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -20,6 +20,7 @@ #include <linux/radix-tree.h> #include <linux/fs.h> #include <linux/slab.h> +#include <linux/backing-dev.h> #include <linux/uaccess.h> @@ -52,7 +53,6 @@ struct brd_device { /* * 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; @@ -401,6 +401,7 @@ static struct brd_device *brd_alloc(int i) disk->flags = GENHD_FL_EXT_DEVT; sprintf(disk->disk_name, "ram%d", i); set_capacity(disk, rd_size * 2); + disk->queue->backing_dev_info->capabilities |= BDI_CAP_SYNCHRONOUS_IO; return brd; |