blkdev: generalize flags for blkdev_issue_fn functions
The patch just convert all blkdev_issue_xxx function to common
set of flags. Wait/allocation semantics preserved.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 5cf17a4..59b9aed 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -998,12 +998,16 @@
return NULL;
return bqt->tag_index[tag];
}
-
-extern int blkdev_issue_flush(struct block_device *, sector_t *);
-#define DISCARD_FL_WAIT 0x01 /* wait for completion */
-#define DISCARD_FL_BARRIER 0x02 /* issue DISCARD_BARRIER request */
-extern int blkdev_issue_discard(struct block_device *, sector_t sector,
- sector_t nr_sects, gfp_t, int flags);
+enum{
+ BLKDEV_WAIT, /* wait for completion */
+ BLKDEV_BARRIER, /*issue request with barrier */
+};
+#define BLKDEV_IFL_WAIT (1 << BLKDEV_WAIT)
+#define BLKDEV_IFL_BARRIER (1 << BLKDEV_BARRIER)
+extern int blkdev_issue_flush(struct block_device *, gfp_t, sector_t *,
+ unsigned long);
+extern int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
+ sector_t nr_sects, gfp_t gfp_mask, unsigned long flags);
static inline int sb_issue_discard(struct super_block *sb,
sector_t block, sector_t nr_blocks)
@@ -1011,7 +1015,7 @@
block <<= (sb->s_blocksize_bits - 9);
nr_blocks <<= (sb->s_blocksize_bits - 9);
return blkdev_issue_discard(sb->s_bdev, block, nr_blocks, GFP_KERNEL,
- DISCARD_FL_BARRIER);
+ BLKDEV_IFL_WAIT | BLKDEV_IFL_BARRIER);
}
extern int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm);