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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-03 20:24:15 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-03 20:24:15 -0700 |
commit | ee01c4d72adffb7d424535adf630f2955748fa8b (patch) | |
tree | 9ea9f40473e105e936e7477ab7dc7248d899af21 /arch/x86/mm/hugetlbpage.c | |
parent | c444eb564fb16645c172d550359cb3d75fe8a040 (diff) | |
parent | 09587a09ada2ed7c39aedfa2681152b5ac5641ee (diff) | |
download | linux-ee01c4d72adffb7d424535adf630f2955748fa8b.tar.bz2 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
"More mm/ work, plenty more to come
Subsystems affected by this patch series: slub, memcg, gup, kasan,
pagealloc, hugetlb, vmscan, tools, mempolicy, memblock, hugetlbfs,
thp, mmap, kconfig"
* akpm: (131 commits)
arm64: mm: use ARCH_HAS_DEBUG_WX instead of arch defined
x86: mm: use ARCH_HAS_DEBUG_WX instead of arch defined
riscv: support DEBUG_WX
mm: add DEBUG_WX support
drivers/base/memory.c: cache memory blocks in xarray to accelerate lookup
mm/thp: rename pmd_mknotpresent() as pmd_mkinvalid()
powerpc/mm: drop platform defined pmd_mknotpresent()
mm: thp: don't need to drain lru cache when splitting and mlocking THP
hugetlbfs: get unmapped area below TASK_UNMAPPED_BASE for hugetlbfs
sparc32: register memory occupied by kernel as memblock.memory
include/linux/memblock.h: fix minor typo and unclear comment
mm, mempolicy: fix up gup usage in lookup_node
tools/vm/page_owner_sort.c: filter out unneeded line
mm: swap: memcg: fix memcg stats for huge pages
mm: swap: fix vmstats for huge pages
mm: vmscan: limit the range of LRU type balancing
mm: vmscan: reclaim writepage is IO cost
mm: vmscan: determine anon/file pressure balance at the reclaim root
mm: balance LRU lists based on relative thrashing
mm: only count actual rotations as LRU reclaim cost
...
Diffstat (limited to 'arch/x86/mm/hugetlbpage.c')
-rw-r--r-- | arch/x86/mm/hugetlbpage.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c index 5bfd5aef5378..cf5781142716 100644 --- a/arch/x86/mm/hugetlbpage.c +++ b/arch/x86/mm/hugetlbpage.c @@ -181,28 +181,21 @@ get_unmapped_area: #endif /* CONFIG_HUGETLB_PAGE */ #ifdef CONFIG_X86_64 -static __init int setup_hugepagesz(char *opt) +bool __init arch_hugetlb_valid_size(unsigned long size) { - unsigned long ps = memparse(opt, &opt); - if (ps == PMD_SIZE) { - hugetlb_add_hstate(PMD_SHIFT - PAGE_SHIFT); - } else if (ps == PUD_SIZE && boot_cpu_has(X86_FEATURE_GBPAGES)) { - hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT); - } else { - hugetlb_bad_size(); - printk(KERN_ERR "hugepagesz: Unsupported page size %lu M\n", - ps >> 20); - return 0; - } - return 1; + if (size == PMD_SIZE) + return true; + else if (size == PUD_SIZE && boot_cpu_has(X86_FEATURE_GBPAGES)) + return true; + else + return false; } -__setup("hugepagesz=", setup_hugepagesz); #ifdef CONFIG_CONTIG_ALLOC static __init int gigantic_pages_init(void) { /* With compaction or CMA we can allocate gigantic pages at runtime */ - if (boot_cpu_has(X86_FEATURE_GBPAGES) && !size_to_hstate(1UL << PUD_SHIFT)) + if (boot_cpu_has(X86_FEATURE_GBPAGES)) hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT); return 0; } |