msm: kgsl: convert sg allocation to vmalloc
kmalloc allocates physically contiguous memory and
may fail for larger allocations due to fragmentation.
The large allocations are caused by the fact that the
scatterlist structure is 24 bytes and the array size
is proportional to the number of pages being mapped.
CRs-fixed: 327066
Change-Id: Ic7d15ca0399aa5c1fa01b7892cff736b3d1e4236
Signed-off-by: Jeff Boody <jboody@codeaurora.org>
diff --git a/drivers/gpu/msm/kgsl_sharedmem.c b/drivers/gpu/msm/kgsl_sharedmem.c
index ec91b39..7211879 100644
--- a/drivers/gpu/msm/kgsl_sharedmem.c
+++ b/drivers/gpu/msm/kgsl_sharedmem.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2002,2007-2011, Code Aurora Forum. All rights reserved.
+/* Copyright (c) 2002,2007-2012, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -421,7 +421,7 @@
memdesc->ops = &kgsl_vmalloc_ops;
memdesc->hostptr = (void *) ptr;
- memdesc->sg = kmalloc(sglen * sizeof(struct scatterlist), GFP_KERNEL);
+ memdesc->sg = vmalloc(sglen * sizeof(struct scatterlist));
if (memdesc->sg == NULL) {
ret = -ENOMEM;
goto done;
@@ -554,7 +554,7 @@
if (memdesc->ops && memdesc->ops->free)
memdesc->ops->free(memdesc);
- kfree(memdesc->sg);
+ vfree(memdesc->sg);
memset(memdesc, 0, sizeof(*memdesc));
}