search for: xen_blkif_init

...ge))) #define pending_handle(_req, _seg) \ - (blkbk->pending_grant_handles[vaddr_pagenr(_req, _seg)]) + (_req->grant_handles[_seg]) static int do_block_io_op(struct xen_blkif *blkif); @@ -1214,7 +1213,7 @@ static void make_response(struct xen_blkif *blkif, u64 id, static int __init xen_blkif_init(void) { - int i, mmap_pages; + int i; int rc = 0; if (!xen_domain()) @@ -1226,21 +1225,15 @@ static int __init xen_blkif_init(void) return -ENOMEM; } - mmap_pages = xen_blkif_reqs * BLKIF_MAX_SEGMENTS_PER_REQUEST; blkbk->pending_reqs = kzalloc(sizeof(blkbk->pending_...

...ND_CHECK_NOTIFY(&blk_rings->common, notify); + + blkif->ops->push_back_ring_rsp(blk_rings, nr_page, &notify); + spin_unlock_irqrestore(&blkif->blk_ring_lock, flags); if (notify) notify_remote_via_irq(blkif->irq); @@ -873,6 +939,14 @@ static int __init xen_blkif_init(void) return rc; } +struct blkback_ring_operation blkback_ring_ops = { + .get_back_ring = get_back_ring, + .copy_blkif_req = copy_blkif_req, + .copy_blkif_seg_req = copy_blkif_seg_req, + .push_back_ring_rsp = push_back_ring_rsp, + .max_seg = BLKIF_MAX_SEGMENTS_PER_REQUEST, +}; +...

Hi, another issue I''m seeing with 3.0-rc2 and Xen is that there is an unexpectedly high amount of kernel reserved memory. I suspect that Linux allocates page table entries and corresponding data structures for the whole 6GB areas of the provided ''physical RAM map'' even though it has rather big unusable holes in it. [ 0.000000] BIOS-provided physical RAM map: [

...ack_ring_ops_v2 = { + .get_back_ring = get_back_ring_v2, + .copy_blkif_req = copy_blkif_req_v2, + .copy_blkif_seg_req = copy_blkif_seg_req_v2, + .push_back_ring_rsp = push_back_ring_rsp_v2, + .copy_response = copy_response_v2, + .max_seg = BLKIF_MAX_SEGMENTS_PER_REQUEST_V2, +}; + static int __init xen_blkif_init(void) { int rc = 0; diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 80e8acc..2e241a4 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -48,6 +48,7 @@ pr_debug(DRV_PFX "(%s:%d) " fmt ".\n",...