Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci

[cascardo/linux.git] / drivers / block / mtip32xx / mtip32xx.c

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index b74eab7..8eb81c9 100644 (file)
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2068,8 +2068,6 @@ static int mtip_hw_ioctl(struct driver_data *dd, unsigned int cmd,
  *          when the read completes.
  * @data     Callback data passed to the callback function
  *          when the read completes.
- * @barrier  If non-zero, this command must be completed before
- *          issuing any other commands.
  * @dir      Direction (read or write)
  *
  * return value
@@ -2077,7 +2075,7 @@ static int mtip_hw_ioctl(struct driver_data *dd, unsigned int cmd,
  */
 static void mtip_hw_submit_io(struct driver_data *dd, sector_t start,
                              int nsect, int nents, int tag, void *callback,
-                             void *data, int barrier, int dir)
+                             void *data, int dir)
 {
        struct host_to_dev_fis  *fis;
        struct mtip_port *port = dd->port;
@@ -2108,8 +2106,6 @@ static void mtip_hw_submit_io(struct driver_data *dd, sector_t start,
        *((unsigned int *) &fis->lba_low) = (start & 0xFFFFFF);
        *((unsigned int *) &fis->lba_low_ex) = ((start >> 24) & 0xFFFFFF);
        fis->device      = 1 << 6;
-       if (barrier)
-               fis->device |= FUA_BIT;
        fis->features    = nsect & 0xFF;
        fis->features_ex = (nsect >> 8) & 0xFF;
        fis->sect_count  = ((tag << 3) | (tag >> 5));
@@ -3087,7 +3083,6 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio)
                                tag,
                                bio_endio,
                                bio,
-                               bio->bi_rw & REQ_FUA,
                                bio_data_dir(bio));
        } else
                bio_io_error(bio);
@@ -3187,6 +3182,10 @@ skip_create_disk:
        blk_queue_max_segments(dd->queue, MTIP_MAX_SG);
        blk_queue_physical_block_size(dd->queue, 4096);
        blk_queue_io_min(dd->queue, 4096);
+       /*
+        * write back cache is not supported in the device. FUA depends on
+        * write back cache support, hence setting flush support to zero.
+        */
        blk_queue_flush(dd->queue, 0);
 
        /* Set the capacity of the device in 512 byte sectors. */