xen-blkback: allow module to be cleanly unloaded (14855954) · Commits · 戴 / test

drivers/block/xen-blkback/blkback.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -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");

+3 −0

Original line number	Diff line number	Diff line
		@@ -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);

+11 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}