blkdev: generalize flags for blkdev_issue_fn functions

[pandora-kernel.git] / block / blk-barrier.c

diff --git a/block/blk-barrier.c b/block/blk-barrier.c
index 6d88544..cf14311 100644 (file)
--- a/block/blk-barrier.c
+++ b/block/blk-barrier.c
@@ -293,19 +293,22 @@ static void bio_end_empty_barrier(struct bio *bio, int err)
 /**
  * blkdev_issue_flush - queue a flush
  * @bdev:      blockdev to issue flush for
+ * @gfp_mask:  memory allocation flags (for bio_alloc)
  * @error_sector:      error sector
+ * @flags:     BLKDEV_IFL_* flags to control behaviour
  *
  * Description:
  *    Issue a flush for the block device in question. Caller can supply
  *    room for storing the error offset in case of a flush error, if they
  *    wish to.
  */
-int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector)
+int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
+               sector_t *error_sector, unsigned long flags)
 {
        DECLARE_COMPLETION_ONSTACK(wait);
        struct request_queue *q;
        struct bio *bio;
-       int ret;
+       int ret = 0;
 
        if (bdev->bd_disk == NULL)
                return -ENXIO;
@@ -314,7 +317,7 @@ int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector)
        if (!q)
                return -ENXIO;
 
-       bio = bio_alloc(GFP_KERNEL, 0);
+       bio = bio_alloc(gfp_mask, 0);
        bio->bi_end_io = bio_end_empty_barrier;
        bio->bi_private = &wait;
        bio->bi_bdev = bdev;
@@ -330,7 +333,6 @@ int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector)
        if (error_sector)
                *error_sector = bio->bi_sector;
 
-       ret = 0;
        if (bio_flagged(bio, BIO_EOPNOTSUPP))
                ret = -EOPNOTSUPP;
        else if (!bio_flagged(bio, BIO_UPTODATE))
@@ -362,17 +364,17 @@ static void blkdev_discard_end_io(struct bio *bio, int err)
  * @sector:    start sector
  * @nr_sects:  number of sectors to discard
  * @gfp_mask:  memory allocation flags (for bio_alloc)
- * @flags:     DISCARD_FL_* flags to control behaviour
+ * @flags:     BLKDEV_IFL_* flags to control behaviour
  *
  * Description:
  *    Issue a discard request for the sectors in question.
  */
 int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
-               sector_t nr_sects, gfp_t gfp_mask, int flags)
+               sector_t nr_sects, gfp_t gfp_mask, unsigned long flags)
 {
        DECLARE_COMPLETION_ONSTACK(wait);
        struct request_queue *q = bdev_get_queue(bdev);
-       int type = flags & DISCARD_FL_BARRIER ?
+       int type = flags & BLKDEV_IFL_BARRIER ?
                DISCARD_BARRIER : DISCARD_NOBARRIER;
        struct bio *bio;
        struct page *page;
@@ -395,7 +397,7 @@ int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
                bio->bi_sector = sector;
                bio->bi_end_io = blkdev_discard_end_io;
                bio->bi_bdev = bdev;
-               if (flags & DISCARD_FL_WAIT)
+               if (flags & BLKDEV_IFL_WAIT)
                        bio->bi_private = &wait;
 
                /*
@@ -426,7 +428,7 @@ int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
                bio_get(bio);
                submit_bio(type, bio);
 
-               if (flags & DISCARD_FL_WAIT)
+               if (flags & BLKDEV_IFL_WAIT)
                        wait_for_completion(&wait);
 
                if (bio_flagged(bio, BIO_EOPNOTSUPP))