Re: [PATCH] Fix Issue: When VirtIO Backend providing VIRTIO_BLK_F_MQ feature, The file system of the front-end OS fails to be mounted.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi

Thank you for the patch.
vhost-blk didn't spark enough interest to be reviewed and merged into the upstream and the code is not present here.
I have forwarded your patch to relevant openvz kernel mailing list.

On 5/17/24 07:34, Lynch wrote:
---
  drivers/vhost/blk.c | 6 ++++--
  1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/vhost/blk.c b/drivers/vhost/blk.c
index 44fbf253e773..0e946d9dfc33 100644
--- a/drivers/vhost/blk.c
+++ b/drivers/vhost/blk.c
@@ -251,6 +251,7 @@ static int vhost_blk_bio_make(struct vhost_blk_req *req,
  	struct page **pages, *page;
  	struct bio *bio = NULL;
  	int bio_nr = 0;
+	sector_t sector_tmp;
if (unlikely(req->bi_opf == REQ_OP_FLUSH))
  		return vhost_blk_bio_make_simple(req, bdev);
@@ -270,6 +271,7 @@ static int vhost_blk_bio_make(struct vhost_blk_req *req,
  		req->bio = req->inline_bio;
  	}
+ sector_tmp = req->sector;
  	req->iov_nr = 0;
  	for (i = 0; i < iov_nr; i++) {
  		int pages_nr = iov_num_pages(&iov[i]);
@@ -302,7 +304,7 @@ static int vhost_blk_bio_make(struct vhost_blk_req *req,
  				bio = bio_alloc(GFP_KERNEL, pages_nr_total);
  				if (!bio)
  					goto fail;
-				bio->bi_iter.bi_sector  = req->sector;
+				bio->bi_iter.bi_sector  = sector_tmp;
  				bio_set_dev(bio, bdev);
  				bio->bi_private = req;
  				bio->bi_end_io  = vhost_blk_req_done;
@@ -314,7 +316,7 @@ static int vhost_blk_bio_make(struct vhost_blk_req *req,
  			iov_len		-= len;
pos = (iov_base & VHOST_BLK_SECTOR_MASK) + iov_len;
-			req->sector += pos >> VHOST_BLK_SECTOR_BITS;
+			sector_tmp += pos >> VHOST_BLK_SECTOR_BITS;
  		}
pages += pages_nr;




[Index of Archives]     [KVM Development]     [Libvirt Development]     [Libvirt Users]     [CentOS Virtualization]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [Kernel Newbies]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux