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mm: consolidate pgtable_cache_init() and pgd_cache_init()

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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/[email protected]
Signed-off-by: Mike Rapoport <[email protected]>
Acked-by: Will Deacon <[email protected]>		[arm64]
Acked-by: Thomas Gleixner <[email protected]>	[x86]
Cc: Catalin Marinas <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Mike Rapoport 2019-09-23 15:35:31 -07:00 • committed by Linus Torvalds
commit 782de70c42
36 changed files with 5 additions and 130 deletions
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1
arch/xtensa/include/asm/pgtable.h
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@ -238,7 +238,6 @@ extern void paging_init(void);
# define swapper_pg_dir NULL
static inline void paging_init(void) { }
#endif
static inline void pgtable_cache_init(void) { }
/*
* The pmd contains the kernel virtual address of the pte page.