Commit 14855954 authored by Paul Durrant's avatar Paul Durrant Committed by Juergen Gross
Browse files

xen-blkback: allow module to be cleanly unloaded



Add a module_exit() to perform the necessary clean-up.
Signed-off-by: default avatarPaul Durrant <pdurrant@amazon.com>
Reviewed-by: default avatar"Roger Pau Monné" <roger.pau@citrix.com>
Reviewed-by: default avatarJuergen Gross <jgross@suse.com>
Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
parent 196748a2
......@@ -1504,5 +1504,13 @@ static int __init xen_blkif_init(void)
module_init(xen_blkif_init);
static void __exit xen_blkif_fini(void)
{
xen_blkif_xenbus_fini();
xen_blkif_interface_fini();
}
module_exit(xen_blkif_fini);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("xen-backend:vbd");
......@@ -375,9 +375,12 @@ struct phys_req {
struct block_device *bdev;
blkif_sector_t sector_number;
};
int xen_blkif_interface_init(void);
void xen_blkif_interface_fini(void);
int xen_blkif_xenbus_init(void);
void xen_blkif_xenbus_fini(void);
irqreturn_t xen_blkif_be_int(int irq, void *dev_id);
int xen_blkif_schedule(void *arg);
......
......@@ -333,6 +333,12 @@ int __init xen_blkif_interface_init(void)
return 0;
}
void xen_blkif_interface_fini(void)
{
kmem_cache_destroy(xen_blkif_cachep);
xen_blkif_cachep = NULL;
}
/*
* sysfs interface for VBD I/O requests
*/
......@@ -1122,3 +1128,8 @@ int xen_blkif_xenbus_init(void)
{
return xenbus_register_backend(&xen_blkbk_driver);
}
void xen_blkif_xenbus_fini(void)
{
xenbus_unregister_driver(&xen_blkbk_driver);
}
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