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authorMike Rapoport <rppt@linux.ibm.com>2019-09-23 15:35:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-09-24 15:54:09 -0700
commit782de70c42930baae55234f3df0dc90774924447 (patch)
tree3381e20d3c3a51631eb0f8fac3d6bfe87a61d894 /arch/arm64
parent1b9a9d8564cbc49e1e5529460ca70bf7353aa4d1 (diff)
downloadlinux-782de70c42930baae55234f3df0dc90774924447.tar.bz2
mm: consolidate pgtable_cache_init() and pgd_cache_init()
Both pgtable_cache_init() and pgd_cache_init() are used to initialize kmem cache for page table allocations on several architectures that do not use PAGE_SIZE tables for one or more levels of the page table hierarchy. Most architectures do not implement these functions and use __weak default NOP implementation of pgd_cache_init(). Since there is no such default for pgtable_cache_init(), its empty stub is duplicated among most architectures. Rename the definitions of pgd_cache_init() to pgtable_cache_init() and drop empty stubs of pgtable_cache_init(). Link: http://lkml.kernel.org/r/1566457046-22637-1-git-send-email-rppt@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Will Deacon <will@kernel.org> [arm64] Acked-by: Thomas Gleixner <tglx@linutronix.de> [x86] Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm64')
-rw-r--r--arch/arm64/include/asm/pgtable.h2
-rw-r--r--arch/arm64/mm/pgd.c2
2 files changed, 1 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 57427d17580e..7576df00eb50 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -861,8 +861,6 @@ extern int kern_addr_valid(unsigned long addr);
#include <asm-generic/pgtable.h>
-static inline void pgtable_cache_init(void) { }
-
/*
* On AArch64, the cache coherency is handled via the set_pte_at() function.
*/
diff --git a/arch/arm64/mm/pgd.c b/arch/arm64/mm/pgd.c
index 7548f9ca1f11..4a64089e5771 100644
--- a/arch/arm64/mm/pgd.c
+++ b/arch/arm64/mm/pgd.c
@@ -35,7 +35,7 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
kmem_cache_free(pgd_cache, pgd);
}
-void __init pgd_cache_init(void)
+void __init pgtable_cache_init(void)
{
if (PGD_SIZE == PAGE_SIZE)
return;