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msm: Increase the kernel virtual area to include lowmem

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Even though lowmem is accounted for in vmalloc space, allocation
comes only from the region bounded by VMALLOC_START and VMALLOC_END.
The kernel virtual area can now allocate from any unmapped region
starting from PAGE_OFFSET.

Change-Id: I291b9eb443d3f7445fd979bd7b09e9241ff22ba3
Signed-off-by: Neeti Desai <neetid@codeaurora.org>
This commit is contained in:
Neeti Desai
2013-09-09 16:52:29 -07:00
committed by Gerrit - the friendly Code Review server
parent c278c94480
commit e6ccd03077
1 changed files with 12 additions and 1 deletions
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mm/vmalloc.c
+12 -1
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@@ -1416,15 +1416,26 @@ struct vm_struct *__get_vm_area_caller(unsigned long size, unsigned long flags,
*/
struct vm_struct *get_vm_area(unsigned long size, unsigned long flags)
{
#ifdef CONFIG_ENABLE_VMALLOC_SAVING
return __get_vm_area_node(size, 1, flags, PAGE_OFFSET, VMALLOC_END,
-1, GFP_KERNEL, __builtin_return_address(0));
#else
return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
-1, GFP_KERNEL, __builtin_return_address(0));
#endif
}
struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
const void *caller)
{
return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
#ifdef CONFIG_ENABLE_VMALLOC_SAVING
return __get_vm_area_node(size, 1, flags, PAGE_OFFSET, VMALLOC_END,
-1, GFP_KERNEL, caller);
#else
return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
-1, GFP_KERNEL, __builtin_return_address(0));
#endif
}
/**