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authorChristoph Hellwig <hch@lst.de>2023-06-01 11:44:52 +0200
committerJens Axboe <axboe@kernel.dk>2023-06-05 10:53:04 -0600
commit0718afd47f70cf46877c39c25d06b786e1a3f36c (patch)
treecfe87d979122314904b2f9639fcb0a62e40a028a /drivers/block/xen-blkback/xenbus.c
parent00080f7fb7a599c26523037b202fb945f3141811 (diff)
block: introduce holder ops
Add a new blk_holder_ops structure, which is passed to blkdev_get_by_* and installed in the block_device for exclusive claims. It will be used to allow the block layer to call back into the user of the block device for thing like notification of a removed device or a device resize. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Acked-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Link: https://lore.kernel.org/r/20230601094459.1350643-10-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/xen-blkback/xenbus.c')
-rw-r--r--drivers/block/xen-blkback/xenbus.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index 4807af1d5805..43b36da9b354 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -492,7 +492,7 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
vbd->pdevice = MKDEV(major, minor);
bdev = blkdev_get_by_dev(vbd->pdevice, vbd->readonly ?
- FMODE_READ : FMODE_WRITE, NULL);
+ FMODE_READ : FMODE_WRITE, NULL, NULL);
if (IS_ERR(bdev)) {
pr_warn("xen_vbd_create: device %08x could not be opened\n",