Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=10e8855b945193a62801429af3aab9f7e27ef56a
Commit:     10e8855b945193a62801429af3aab9f7e27ef56a
Parent:     70e36eceaf897da11aa0b4d82b46ca66e65a05f1
Author:     FUJITA Tomonori <[EMAIL PROTECTED]>
AuthorDate: Wed Dec 20 11:20:57 2006 +0100
Committer:  Jens Axboe <[EMAIL PROTECTED]>
CommitDate: Mon Jul 16 08:52:44 2007 +0200

    bsg: add SG_IO to SG v4
    
    This adds SG_IO support to SG v4.
    
    Signed-off-by: FUJITA Tomonori <[EMAIL PROTECTED]>
    Signed-off-by: Jens Axboe <[EMAIL PROTECTED]>
---
 block/bsg.c |   23 +++++++++++++++++++++--
 1 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/block/bsg.c b/block/bsg.c
index 6d139d2..9dc5d36 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -945,8 +945,27 @@ bsg_ioctl(struct inode *inode, struct file *file, unsigned 
int cmd,
                void __user *uarg = (void __user *) arg;
                return scsi_cmd_ioctl(file, bd->disk, cmd, uarg);
        }
-       case SG_IO:
-               return -EINVAL;
+       case SG_IO: {
+               struct request *rq;
+               struct bio *bio;
+               struct sg_io_v4 hdr;
+
+               if (copy_from_user(&hdr, uarg, sizeof(hdr)))
+                       return -EFAULT;
+
+               rq = bsg_map_hdr(bd, &hdr);
+               if (IS_ERR(rq))
+                       return PTR_ERR(rq);
+
+               bio = rq->bio;
+               blk_execute_rq(bd->queue, bd->disk, rq, 0);
+               blk_complete_sgv4_hdr_rq(rq, &hdr, bio);
+
+               if (copy_to_user(uarg, &hdr, sizeof(hdr)))
+                       return -EFAULT;
+               else
+                       return 0;
+       }
        /*
         * block device ioctls
         */
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to