drivers/xen/balloon.c

2  * Xen balloon driver - enables returning/claiming memory to/from Xen.
73 #include <xen/balloon.h>
115  * BP_ECANCELED: error, balloon operation canceled.
125 /* Main waiting point for xen-balloon thread. */
146 /* balloon_append: add the given page to the balloon. */
165 /* balloon_retrieve: rescue a page from the balloon, if it is not empty. */
467 	 * and add to balloon.  in decrease_reservation()
505  * by the balloon lock), or with changes to the Xen hard limit, but we will
674 	/* The balloon may be too large now. Shrink it if needed. */  in xen_free_ballooned_pages()
707 		 * decreasing from current_pages to balloon down the initial  in balloon_add_regions()
729 	pr_info("Initialising balloon driver\n");  in balloon_init()
750 	register_sysctl_init("xen/balloon", balloon_table);  in balloon_init()
757 	task = kthread_run(balloon_thread, NULL, "xen-balloon");  in balloon_init()
759 		pr_err("xen-balloon thread could not be started, ballooning will not work!\n");  in balloon_init()
763 	/* Init the xen-balloon driver. */  in balloon_init()