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authorNicholas Piggin <npiggin@gmail.com>2019-09-24 01:35:19 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-09-25 01:54:09 +0300
commit13224794cb0832caa403ad583d8605202cabc6bc (patch)
tree74ecb05caeea21ae665270365734752a043644b1 /arch/powerpc
parent7b167b681013f5715b6e5c4f458e346501464259 (diff)
downloadlinux-13224794cb0832caa403ad583d8605202cabc6bc.tar.xz
mm: remove quicklist page table caches
Patch series "mm: remove quicklist page table caches". A while ago Nicholas proposed to remove quicklist page table caches [1]. I've rebased his patch on the curren upstream and switched ia64 and sh to use generic versions of PTE allocation. [1] https://lore.kernel.org/linux-mm/20190711030339.20892-1-npiggin@gmail.com This patch (of 3): Remove page table allocator "quicklists". These have been around for a long time, but have not got much traction in the last decade and are only used on ia64 and sh architectures. The numbers in the initial commit look interesting but probably don't apply anymore. If anybody wants to resurrect this it's in the git history, but it's unhelpful to have this code and divergent allocator behaviour for minor archs. Also it might be better to instead make more general improvements to page allocator if this is still so slow. Link: http://lkml.kernel.org/r/1565250728-21721-2-git-send-email-rppt@linux.ibm.com Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/pgalloc.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/pgalloc.h b/arch/powerpc/include/asm/pgalloc.h
index 2b2c60a1a66d..6dd78a2dc03a 100644
--- a/arch/powerpc/include/asm/pgalloc.h
+++ b/arch/powerpc/include/asm/pgalloc.h
@@ -64,8 +64,6 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
extern struct kmem_cache *pgtable_cache[];
#define PGT_CACHE(shift) pgtable_cache[shift]
-static inline void check_pgt_cache(void) { }
-
#ifdef CONFIG_PPC_BOOK3S
#include <asm/book3s/pgalloc.h>
#else