On Mon 22-08-16 21:20:03, Xie Yisheng wrote: > Avoid making ifdef get pretty unwieldy if many ARCHs support gigantic page. > No functional change with this patch. > > Signed-off-by: Xie Yisheng <xieyisheng1@xxxxxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxxx> > --- > arch/s390/Kconfig | 1 + > arch/x86/Kconfig | 1 + > fs/Kconfig | 3 +++ > mm/hugetlb.c | 2 +- > 4 files changed, 6 insertions(+), 1 deletion(-) > > diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig > index e751fe2..a8c8fa3 100644 > --- a/arch/s390/Kconfig > +++ b/arch/s390/Kconfig > @@ -72,6 +72,7 @@ config S390 > select ARCH_HAS_DEVMEM_IS_ALLOWED > select ARCH_HAS_ELF_RANDOMIZE > select ARCH_HAS_GCOV_PROFILE_ALL > + select ARCH_HAS_GIGANTIC_PAGE > select ARCH_HAS_KCOV > select ARCH_HAS_SG_CHAIN > select ARCH_HAVE_NMI_SAFE_CMPXCHG > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index c580d8c..2fdc300 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -29,6 +29,7 @@ config X86 > select ARCH_HAS_ELF_RANDOMIZE > select ARCH_HAS_FAST_MULTIPLIER > select ARCH_HAS_GCOV_PROFILE_ALL > + select ARCH_HAS_GIGANTIC_PAGE if X86_64 > select ARCH_HAS_KCOV if X86_64 > select ARCH_HAS_PMEM_API if X86_64 > select ARCH_HAS_MMIO_FLUSH > diff --git a/fs/Kconfig b/fs/Kconfig > index 2bc7ad7..b938205 100644 > --- a/fs/Kconfig > +++ b/fs/Kconfig > @@ -199,6 +199,9 @@ config HUGETLBFS > config HUGETLB_PAGE > def_bool HUGETLBFS > > +config ARCH_HAS_GIGANTIC_PAGE > + bool > + > source "fs/configfs/Kconfig" > source "fs/efivarfs/Kconfig" > > diff --git a/mm/hugetlb.c b/mm/hugetlb.c > index 87e11d8..8488dcc 100644 > --- a/mm/hugetlb.c > +++ b/mm/hugetlb.c > @@ -1022,7 +1022,7 @@ static int hstate_next_node_to_free(struct hstate *h, nodemask_t *nodes_allowed) > ((node = hstate_next_node_to_free(hs, mask)) || 1); \ > nr_nodes--) > > -#if (defined(CONFIG_X86_64) || defined(CONFIG_S390)) && \ > +#if defined(CONFIG_ARCH_HAS_GIGANTIC_PAGE) && \ > ((defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || \ > defined(CONFIG_CMA)) > static void destroy_compound_gigantic_page(struct page *page, > -- > 1.7.12.4 > -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>