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Commit 49e1971b authored by Susheel Khiani's avatar Susheel Khiani
Browse files

msm: Increase the kernel virtual area to include lowmem 



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: default avatarNeeti Desai <neetid@codeaurora.org>
Signed-off-by: default avatarSusheel Khiani <skhiani@codeaurora.org>
parent 23463c87

mm/vmalloc.c

+11 −0
Original line number Diff line number Diff line
@@ -1366,16 +1366,27 @@ 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,

				  NUMA_NO_NODE, GFP_KERNEL,

				  __builtin_return_address(0));

#else

	return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,

				  NUMA_NO_NODE, GFP_KERNEL,

				  __builtin_return_address(0));

#endif

}



struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,

				const void *caller)

{

#ifdef CONFIG_ENABLE_VMALLOC_SAVING

	return __get_vm_area_node(size, 1, flags, PAGE_OFFSET, VMALLOC_END,

				  NUMA_NO_NODE, GFP_KERNEL, caller);

#else

	return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,

				  NUMA_NO_NODE, GFP_KERNEL, caller);

#endif

}



/**