]> git.baikalelectronics.ru Git - kernel.git/commit
mm: Add and use update_mmu_cache_pmd() in transparent huge page code.
authorDavid Miller <davem@davemloft.net>
Mon, 8 Oct 2012 23:34:25 +0000 (16:34 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 9 Oct 2012 07:23:05 +0000 (16:23 +0900)
commit45432eb8fbfe8b6471107c42563a561bff40aa6b
tree826a1e6c00faa177299d484a517c4724d87fda14
parent6b2fab9ba6a46b6abe29ac6f57cc857f0aac4aaf
mm: Add and use update_mmu_cache_pmd() in transparent huge page code.

The transparent huge page code passes a PMD pointer in as the third
argument of update_mmu_cache(), which expects a PTE pointer.

This never got noticed because X86 implements update_mmu_cache() as a
macro and thus we don't get any type checking, and X86 is the only
architecture which supports transparent huge pages currently.

Before other architectures can support transparent huge pages properly we
need to add a new interface which will take a PMD pointer as the third
argument rather than a PTE pointer.

[akpm@linux-foundation.org: implement update_mm_cache_pmd() for s390]
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/s390/include/asm/pgtable.h
arch/x86/include/asm/pgtable_32.h
arch/x86/include/asm/pgtable_64.h
mm/huge_memory.c