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[Xen-changelog] [xen-unstable] [NET] Make MAX_SKBUFF_ORDER page-size ind

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Subject:	[Xen-changelog] [xen-unstable] [NET] Make MAX_SKBUFF_ORDER page-size independent.
From:	Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date:	Tue, 03 Oct 2006 12:40:15 +0000
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# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Node ID 38f9bd7a4ce6e164bd720292fb0a75a75cad9d19
# Parent  6df04adab323f08f3d6845d6f31c5e27cf9d77cc
[NET] Make MAX_SKBUFF_ORDER page-size independent.
Original patch from Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
---
 linux-2.6-xen-sparse/drivers/xen/core/skbuff.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletion(-)

diff -r 6df04adab323 -r 38f9bd7a4ce6 
linux-2.6-xen-sparse/drivers/xen/core/skbuff.c
--- a/linux-2.6-xen-sparse/drivers/xen/core/skbuff.c    Tue Oct 03 11:33:37 
2006 +0100
+++ b/linux-2.6-xen-sparse/drivers/xen/core/skbuff.c    Tue Oct 03 11:39:22 
2006 +0100
@@ -18,7 +18,12 @@
 /*static*/ kmem_cache_t *skbuff_cachep;
 EXPORT_SYMBOL(skbuff_cachep);
 
-#define MAX_SKBUFF_ORDER 4
+/* Allow up to 64kB or page-sized packets (whichever is greater). */
+#if PAGE_SHIFT < 16
+#define MAX_SKBUFF_ORDER (16 - PAGE_SHIFT)
+#else
+#define MAX_SKBUFF_ORDER 0
+#endif
 static kmem_cache_t *skbuff_order_cachep[MAX_SKBUFF_ORDER + 1];
 
 static struct {

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