drivers/virtio/virtio_mem.c

170 			/* The subblock size. */
195 			 * Bitmap: one bit per subblock. Allocated similar to
198 			 * A set bit means the corresponding subblock is
359  * Calculate the subblock id of a given address.
504  * Calculate the bit number in the subblock bitmap for the given subblock
573  * Find the first unplugged subblock. Returns vm->sbm.sbs_per_mb in case there is
586  * Prepare the subblock bitmap for the next memory block.
1206 		 * using alloc_contig_range(). All pages in a subblock are  in virtio_mem_fake_online()
1308 	 * We can get called with any order up to MAX_PAGE_ORDER. If our subblock  in virtio_mem_online_page()
1583  * memory block. Will fail if any subblock cannot get unplugged (instead of
1598 		/* Find the next candidate subblock */  in virtio_mem_sbm_unplug_any_sb_raw()
1652 	/* Resize the subblock bitmap if required. */  in virtio_mem_sbm_prepare_next_mb()
1931  * Will fail if any subblock cannot get unplugged (instead of skipping it).
2016  * Will skip subblock that are busy.
2044 		/* Find the next candidate subblock */  in virtio_mem_sbm_unplug_any_sb_online()
2069  * already added to Linux. Will skip subblock of online memory blocks that are
2070  * busy (by the OS). Will fail if any subblock that's not busy cannot get
2607 		dev_info(&vm->vdev->dev, "subblock size: 0x%llx",  in virtio_mem_init_hotplug()