Re: [PATCH] [scsi] Remove __GFP_DMA

From: Aubrey Li
Date: Tue May 22 2007 - 22:41:27 EST


On 5/23/07, Christoph Lameter <clameter@xxxxxxx> wrote:
On Mon, 21 May 2007, Bernhard Walle wrote:

> [PATCH] [scsi] Remove __GFP_DMA
>
> After 821de3a27bf33f11ec878562577c586cd5f83c64, it's not necessary to alloate a
> DMA buffer any more in sd.c.
>
> Signed-off-by: Bernhard Walle <bwalle@xxxxxxx>

Great that avoids a DMA kmalloc slab. Any other GFP_DMAs left in the scsi
layer?

Acked-by: Christoph Lameter <clameter@xxxxxxx>

Yes, here is another patch

Signed-off-by: Aubrey.Li <aubreylee@xxxxxxxxx>
---
drivers/scsi/aacraid/commctrl.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index 72b0393..405722d 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -580,8 +580,8 @@ static int aac_send_raw_srb(struct aac_dev* dev,
void __user * arg)
for (i = 0; i < upsg->count; i++) {
u64 addr;
void* p;
- /* Does this really need to be GFP_DMA? */
- p = kmalloc(upsg->sg[i].count,GFP_KERNEL|__GFP_DMA);
+
+ p = kmalloc(upsg->sg[i].count,GFP_KERNEL);
if(p == 0) {
dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size
= %d buffer number %d of %d\n",
upsg->sg[i].count,i,upsg->count));
@@ -624,8 +624,8 @@ static int aac_send_raw_srb(struct aac_dev* dev,
void __user * arg)
for (i = 0; i < usg->count; i++) {
u64 addr;
void* p;
- /* Does this really need to be GFP_DMA? */
- p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA);
+
+ p = kmalloc(usg->sg[i].count,GFP_KERNEL);
if(p == 0) {
kfree (usg);
dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size
= %d buffer number %d of %d\n",
@@ -666,8 +666,8 @@ static int aac_send_raw_srb(struct aac_dev* dev,
void __user * arg)
for (i = 0; i < upsg->count; i++) {
u64 addr;
void* p;
- /* Does this really need to be GFP_DMA? */
- p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA);
+
+ p = kmalloc(usg->sg[i].count,GFP_KERNEL);
if(p == 0) {
dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size
= %d buffer number %d of %d\n",
usg->sg[i].count,i,usg->count));
--
1.5.1.1
-
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