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| author | Thomas Gleixner <[email protected]> | 2016-09-01 16:33:46 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2016-09-01 16:33:46 +0000 |
| commit | 0cb7bf61b1e9f05027de58c80f9b46a714d24e35 (patch) | |
| tree | 41fb55cf62d07b425122f9a8b96412c0d8eb99c5 /arch/x86/mm/kaslr.c | |
| parent | cpu/hotplug: Prevent alloc/free of irq descriptors during CPU up/down (again) (diff) | |
| parent | Linux 4.8-rc4 (diff) | |
| download | kernel-0cb7bf61b1e9f05027de58c80f9b46a714d24e35.tar.gz kernel-0cb7bf61b1e9f05027de58c80f9b46a714d24e35.zip | |
Merge branch 'linus' into smp/hotplug
Apply upstream changes to avoid conflicts with pending patches.
Diffstat (limited to 'arch/x86/mm/kaslr.c')
| -rw-r--r-- | arch/x86/mm/kaslr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/mm/kaslr.c b/arch/x86/mm/kaslr.c index 26dccd6c0df1..bda8d5eef04d 100644 --- a/arch/x86/mm/kaslr.c +++ b/arch/x86/mm/kaslr.c @@ -77,7 +77,7 @@ static inline unsigned long get_padding(struct kaslr_memory_region *region) */ static inline bool kaslr_memory_enabled(void) { - return kaslr_enabled() && !config_enabled(CONFIG_KASAN); + return kaslr_enabled() && !IS_ENABLED(CONFIG_KASAN); } /* Initialize base and padding for each memory region randomized with KASLR */ @@ -97,7 +97,7 @@ void __init kernel_randomize_memory(void) * add padding if needed (especially for memory hotplug support). */ BUG_ON(kaslr_regions[0].base != &page_offset_base); - memory_tb = ((max_pfn << PAGE_SHIFT) >> TB_SHIFT) + + memory_tb = DIV_ROUND_UP(max_pfn << PAGE_SHIFT, 1UL << TB_SHIFT) + CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING; /* Adapt phyiscal memory region size based on available memory */ |