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| author | Nicholas Piggin <npiggin@gmail.com> | 2019-09-23 15:35:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-09-24 15:54:09 -0700 |
| commit | 13224794cb0832caa403ad583d8605202cabc6bc (patch) | |
| tree | 74ecb05caeea21ae665270365734752a043644b1 /mm/mmu_gather.c | |
| parent | 7b167b681013f5715b6e5c4f458e346501464259 (diff) | |
| download | linux-stable-13224794cb0832caa403ad583d8605202cabc6bc.tar.gz linux-stable-13224794cb0832caa403ad583d8605202cabc6bc.tar.bz2 linux-stable-13224794cb0832caa403ad583d8605202cabc6bc.zip | |
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 'mm/mmu_gather.c')
| -rw-r--r-- | mm/mmu_gather.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/mmu_gather.c b/mm/mmu_gather.c index 8c943a6e1696..7d70e5c78f97 100644 --- a/mm/mmu_gather.c +++ b/mm/mmu_gather.c @@ -271,8 +271,6 @@ void tlb_finish_mmu(struct mmu_gather *tlb, tlb_flush_mmu(tlb); - /* keep the page table cache within bounds */ - check_pgt_cache(); #ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER tlb_batch_list_free(tlb); #endif |