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authorMike Kravetz <mike.kravetz@oracle.com>2020-06-04 01:00:38 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-04 05:09:46 +0200
commit359f25443a8dada0fb709dd044a422017031790f (patch)
treecf7eada30d1da70aff7462eb2fc729a579367a99 /arch/x86/mm/hugetlbpage.c
parenthugetlbfs: add arch_hugetlb_valid_size (diff)
downloadlinux-359f25443a8dada0fb709dd044a422017031790f.tar.xz
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hugetlbfs: move hugepagesz= parsing to arch independent code
Now that architectures provide arch_hugetlb_valid_size(), parsing of "hugepagesz=" can be done in architecture independent code. Create a single routine to handle hugepagesz= parsing and remove all arch specific routines. We can also remove the interface hugetlb_bad_size() as this is no longer used outside arch independent code. This also provides consistent behavior of hugetlbfs command line options. The hugepagesz= option should only be specified once for a specific size, but some architectures allow multiple instances. This appears to be more of an oversight when code was added by some architectures to set up ALL huge pages sizes. Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Sandipan Das <sandipan@linux.ibm.com> Reviewed-by: Peter Xu <peterx@redhat.com> Acked-by: Mina Almasry <almasrymina@google.com> Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390] Acked-by: Will Deacon <will@kernel.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Longpeng <longpeng2@huawei.com> Cc: Nitesh Narayan Lal <nitesh@redhat.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Anders Roxell <anders.roxell@linaro.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Cc: Qian Cai <cai@lca.pw> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Link: http://lkml.kernel.org/r/20200417185049.275845-3-mike.kravetz@oracle.com Link: http://lkml.kernel.org/r/20200428205614.246260-3-mike.kravetz@oracle.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/mm/hugetlbpage.c')
-rw-r--r--arch/x86/mm/hugetlbpage.c16
1 files changed, 0 insertions, 16 deletions
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index 1c4372bfe782..937d640a89e3 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -191,22 +191,6 @@ bool __init arch_hugetlb_valid_size(unsigned long size)
return false;
}
-static __init int setup_hugepagesz(char *opt)
-{
- unsigned long ps = memparse(opt, &opt);
-
- if (arch_hugetlb_valid_size(ps)) {
- hugetlb_add_hstate(ilog2(ps) - PAGE_SHIFT);
- } else {
- hugetlb_bad_size();
- printk(KERN_ERR "hugepagesz: Unsupported page size %lu M\n",
- ps >> 20);
- return 0;
- }
- return 1;
-}
-__setup("hugepagesz=", setup_hugepagesz);
-
#ifdef CONFIG_CONTIG_ALLOC
static __init int gigantic_pages_init(void)
{