[PATCH v2 6/6] net: thunderx: Alloc higher order pages when pagesize is small

From	sunil.kovvuri@gmail.com
Newsgroups	linux.kernel
Subject	[PATCH v2 6/6] net: thunderx: Alloc higher order pages when pagesize is small
Date	2016-02-11 17:20 +0100
Message-ID	<r128h-2LZ-1@gated-at.bofh.it> (permalink)
References	<r128h-2LZ-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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From: Sunil Goutham <sgoutham@cavium.com>

Allocate higher order pages when pagesize is small, this will
reduce number of calls to page allocator and wastage of memory.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
---
 drivers/net/ethernet/cavium/thunder/nicvf_queues.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
index 50ab6f4..5adb208 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
@@ -78,7 +78,7 @@ static void nicvf_free_q_desc_mem(struct nicvf *nic, struct q_desc_mem *dmem)
 static inline int nicvf_alloc_rcv_buffer(struct nicvf *nic, gfp_t gfp,
 					 u32 buf_len, u64 **rbuf)
 {
-	int order = get_order(buf_len);
+	int order = (PAGE_SIZE <= 4096) ?  PAGE_ALLOC_COSTLY_ORDER : 0;
 
 	/* Check if request can be accomodated in previous allocated page */
 	if (nic->rb_page) {
-- 
1.7.1

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[PATCH v2 6/6] net: thunderx: Alloc higher order pages when pagesize is small sunil.kovvuri@gmail.com - 2016-02-11 17:20 +0100

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