search for: page_to_virt

...are already pinned by 'get_user_pages()' > during such skb creation. > > Signed-off-by: Arseniy Krasnov <AVKrasnov at sberdevices.ru> > Reviewed-by: Stefano Garzarella <sgarzare at redhat.com> > --- > Changelog: > v2 -> v3: > * Comment about 'page_to_virt()' is updated. I don't remove R-b, > as this change is quiet small I guess. > > net/vmw_vsock/virtio_transport.c | 41 +++++++++++++++++++++++++++----- > 1 file changed, 35 insertions(+), 6 deletions(-) > > diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vso...

...of(*virtio_vsock_hdr(skb))); >+ sgs[out_sg++] = &bufs[0]; >+ >+ if (skb_is_nonlinear(skb)) { >+ int i; >+ >+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { >+ struct page *data_page = skb_shinfo(skb)->frags[i].bv_page; >+ >+ /* We will use 'page_to_virt()' for userspace page here, >+ * because virtio layer will call 'virt_to_phys()' later >+ * to fill buffer descriptor. We don't touch memory at >+ * "virtual" address of this page. >+ */ IIUC data_page is a user page, so since we are exposing i...

...return v; } --- 2011-03-09.orig/xen/arch/x86/x86_64/mm.c +++ 2011-03-09/xen/arch/x86/x86_64/mm.c @@ -84,8 +84,9 @@ void *alloc_xen_pagetable(void) if ( !early_boot ) { struct page_info *pg = alloc_domheap_page(NULL, 0); - BUG_ON(pg == NULL); - return page_to_virt(pg); + + BUG_ON(!dom0 && !pg); + return pg ? page_to_virt(pg) : NULL; } mfn = alloc_boot_pages(1, 1); @@ -100,6 +101,9 @@ l3_pgentry_t *virt_to_xen_l3e(unsigned l if ( !(l4e_get_flags(*pl4e) & _PAGE_PRESENT) ) { l3_pgentry_t *pl3e = alloc_xen...

Hi! Make scrub_heap_pages() print from where to where it scrubs pages. Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> This patch uncovers a strange behaviour on 32bit. On 64bit I get this: (XEN) Scrubbing Free RAM 0xffff830000100000 -> 0xffff83003fff0000: ....done. On 32bit I get this: (XEN) Scrubbing Free RAM 0xffc00000 -> 0xdefb0000:

Hi Linus, My for-linus branch has a one line fix: git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs.git for-linus Sage hit a deadlock with ceph on btrfs, and Josef tracked it down to a regression in our initial rc1 pull. When doing nocow writes we were sometimes starting a transaction with locks held. Josef Bacik (1) commits (+1/-0): Btrfs: release path before starting

Changes from v2 to v3: - Use pfn_to_paddr() to get the address from frame number instead of doing shift directly. - Remove some unnecessary initialization code and add "static" to vmentry_fields and gpdptr_fields. - Enable the VMREAD/VMWRITE bitmap only if nested hvm is enabled. - Use clear_page() to set all 0 to the page instead of memset(). - Use domheap to allocate the

...gt;curr_frag; >+ curr_offs = VIRTIO_VSOCK_SKB_CB(skb)->frag_off; >+ curr_vec = &skb_shinfo(skb)->frags[curr_frag]; >+ >+ curr_vec_end = curr_vec->bv_offset + curr_vec->bv_len; >+ to_copy = min(rest_len, (size_t)(curr_vec_end - curr_offs)); >+ >+ memcpy(dst, page_to_virt(curr_vec->bv_page) + curr_offs, >+ to_copy); >+ >+ rest_len -= to_copy; >+ VIRTIO_VSOCK_SKB_CB(skb)->frag_off += to_copy; >+ >+ if (VIRTIO_VSOCK_SKB_CB(skb)->frag_off == (curr_vec_end)) { >+ VIRTIO_VSOCK_SKB_CB(skb)->curr_frag++; >+ VIRTIO_VSOCK_SK...

...stmem_order = get_order_from_pages(LZO_DSTMEM_PAGES); workmem_order = get_order_from_bytes(LZO1X_1_MEM_COMPRESS); - for_each_cpu ( cpu ) + for_each_possible_cpu ( cpu ) { pi = alloc_domheap_pages(0,dstmem_order,0); per_cpu(dstmem, cpu) = p1 = ((pi == NULL) ? NULL : page_to_virt(pi)); --- 2009-07-10.orig/xen/include/xen/cpumask.h 2009-05-27 13:54:07.000000000 +0200 +++ 2009-07-10/xen/include/xen/cpumask.h 2009-07-15 10:04:01.000000000 +0200 @@ -61,7 +61,7 @@ * * int any_online_cpu(mask) First online cpu in mask, or NR_CPUS * - * for_each_cpu(cpu) for-loop cpu over...

These two patches were originally part of the XSM series that I have posted, and remain prerequisites for that series. However, they are independent of the XSM changes and are a useful simplification regardless of the use of XSM. The Acked-bys on these patches were provided before rebasing them over the copyback changes in 26268:1b72138bddda, which had minor conflicts that I resolved. [PATCH

Hi all, this series replaced the DMA_ATTR_NON_CONSISTENT flag to dma_alloc_attrs with a separate new dma_alloc_pages API, which is available on all platforms. In addition to cleaning up the convoluted code path, this ensures that other drivers that have asked for better support for non-coherent DMA to pages with incurring bounce buffering over can finally be properly supported. I'm still a

Hello everyone, this is the fourth version of the patch series that introduces ARMv7 with virtualization extensions support in Xen. The series allows Xen and Dom0 to boot on a Cortex-A15 based Versatile Express simulator. See the following announce email for more informations about what we are trying to achieve, as well as the original git history: See

Hello everyone, this is the very first version of the patch series that introduces ARMv7 with virtualization extensions support in Xen. The series allows Xen and Dom0 to boot on a Cortex-A15 based Versatile Express simulator. See the following announce email for more informations about what we are trying to achieve, as well as the original git history: See