evie/android_kernel_oneplus_msm8998
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ARM: mm: Adjust the low memory boundary

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The unused virtual address space in low memory is given to
vmalloc for use. This reduces the low memory space and
increases vmalloc space. Adjust the vmalloc_min in order
to increase the low memory.

Change-Id: I0dbef5b6e5ec3d19f5f93f06ed03a4cf1215dc4d
Signed-off-by: Neeti Desai <neetid@codeaurora.org>
Signed-off-by: Susheel Khiani <skhiani@codeaurora.org>
This commit is contained in:
Susheel Khiani 2015-09-04 19:42:18 +05:30 • committed by Kyle Yan
parent d2cb754944
commit fbcc212e73
1 changed files with 13 additions and 0 deletions
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13
arch/arm/mm/mmu.c
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@ -1116,6 +1116,19 @@ void __init sanity_check_meminfo(void)
struct memblock_region *reg;
bool should_use_highmem = false;
#ifdef CONFIG_ENABLE_VMALLOC_SAVING
struct memblock_region *prev_reg = NULL;
for_each_memblock(memory, reg) {
if (prev_reg == NULL) {
prev_reg = reg;
continue;
}
vmalloc_limit += reg->base - (prev_reg->base + prev_reg->size);
prev_reg = reg;
}
#endif
for_each_memblock(memory, reg) {
phys_addr_t block_start = reg->base;
phys_addr_t block_end = reg->base + reg->size;