This is a note to let you know that I've just added the patch titled
drm/nouveau/core: use vzalloc for allocating ramht
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-nouveau-core-use-vzalloc-for-allocating-ramht.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 78a121d82da8aff3aca2a6a1c40f5061081760f0 Mon Sep 17 00:00:00 2001
From: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
Date: Sun, 6 Mar 2016 16:06:06 -0500
Subject: drm/nouveau/core: use vzalloc for allocating ramht
From: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
commit 78a121d82da8aff3aca2a6a1c40f5061081760f0 upstream.
Most calls to nvkm_ramht_new use 0x8000 as the size. This results in a
fairly sizeable chunk of memory to be allocated, which may not be
available with kzalloc. Since this is done fairly rarely (once per
channel), use vzalloc instead.
Signed-off-by: Ilia Mirkin <imirkin@xxxxxxxxxxxx>
Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
Cc: Sven Joachim <svenjoac@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nvkm/core/ramht.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/nouveau/nvkm/core/ramht.c
+++ b/drivers/gpu/drm/nouveau/nvkm/core/ramht.c
@@ -131,7 +131,7 @@ nvkm_ramht_del(struct nvkm_ramht **pramh
struct nvkm_ramht *ramht = *pramht;
if (ramht) {
nvkm_gpuobj_del(&ramht->gpuobj);
- kfree(*pramht);
+ vfree(*pramht);
*pramht = NULL;
}
}
@@ -143,8 +143,8 @@ nvkm_ramht_new(struct nvkm_device *devic
struct nvkm_ramht *ramht;
int ret, i;
- if (!(ramht = *pramht = kzalloc(sizeof(*ramht) + (size >> 3) *
- sizeof(*ramht->data), GFP_KERNEL)))
+ if (!(ramht = *pramht = vzalloc(sizeof(*ramht) +
+ (size >> 3) * sizeof(*ramht->data))))
return -ENOMEM;
ramht->device = device;
Patches currently in stable-queue which might be from imirkin@xxxxxxxxxxxx are
queue-4.4/drm-nouveau-core-use-vzalloc-for-allocating-ramht.patch
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