[Xen-changelog] [xen-3.0-testing] [LINUX] Network buffers do not need to be multi-page contiguous

[Xen patchbot-3.0-testing <patchbot-3.0-testing@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID c2ad3b08f272f8b7eeec1243268b9c422531829a
# Parent  1fa7c3a50ab030c23bdb3da205fbed0f9fda82f0
[LINUX] Network buffers do not need to be multi-page contiguous
for unprivileged domains (in any case, can fall back to swiotlb).
On non-privileged domain of Xen/IA64, this caused some trouble.
[Note: this patch will be removed when xen_create_contiguous_region()
       is fixed properly.]
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
xen-unstable changeset:   10356:4f0bc574455751ed0493f083c13911d8e01b92f0
xen-unstable date:        Thu Jun 15 13:19:04 2006 +0100
---
 linux-2.6-xen-sparse/drivers/xen/core/skbuff.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff -r 1fa7c3a50ab0 -r c2ad3b08f272 
linux-2.6-xen-sparse/drivers/xen/core/skbuff.c
--- a/linux-2.6-xen-sparse/drivers/xen/core/skbuff.c    Thu Jun 15 13:14:20 
2006 +0100
+++ b/linux-2.6-xen-sparse/drivers/xen/core/skbuff.c    Thu Jun 15 13:44:33 
2006 +0100
@@ -121,8 +121,14 @@ static int __init skbuff_init(void)
        for (order = 0; order <= MAX_SKBUFF_ORDER; order++) {
                size = PAGE_SIZE << order;
                sprintf(name[order], "xen-skb-%lu", size);
-               skbuff_order_cachep[order] = kmem_cache_create(
-                       name[order], size, size, 0, skbuff_ctor, skbuff_dtor);
+               if (xen_start_info->flags & SIF_PRIVILEGED)
+                       skbuff_order_cachep[order] = kmem_cache_create(
+                               name[order], size, size, 0,
+                               skbuff_ctor, skbuff_dtor);
+               else
+                       skbuff_order_cachep[order] = kmem_cache_create(
+                               name[order], size, size, 0, NULL, NULL);
+                       
        }
 
        skbuff_cachep = skbuff_order_cachep[0];

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