AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

sparc, thp: remove infrastructure for handling splitting PMDs

Browse Source 
With new refcounting we don't need to mark PMDs splitting.  Let's drop
code to handle this.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Steve Capper <steve.capper@linaro.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill A. Shutemov 2016-01-15 16:53:28 -08:00 committed by Linus Torvalds
parent fecffad254
commit 99f1bc0116
3 changed files with 1 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
arch/sparc/include/asm/pgtable_64.h
View File

@ -681,13 +681,6 @@ static inline unsigned long pmd_trans_huge(pmd_t pmd)
return pte_val(pte) & _PAGE_PMD_HUGE;
}
static inline unsigned long pmd_trans_splitting(pmd_t pmd)
{
pte_t pte = __pte(pmd_val(pmd));
return pmd_trans_huge(pmd) && pte_special(pte);
}
#define has_transparent_hugepage() 1
static inline pmd_t pmd_mkold(pmd_t pmd)
@ -735,15 +728,6 @@ static inline pmd_t pmd_mkwrite(pmd_t pmd)
return __pmd(pte_val(pte));
}
static inline pmd_t pmd_mksplitting(pmd_t pmd)
{
pte_t pte = __pte(pmd_val(pmd));
pte = pte_mkspecial(pte);
return __pmd(pte_val(pte));
}
static inline pgprot_t pmd_pgprot(pmd_t entry)
{
unsigned long val = pmd_val(entry);

3
arch/sparc/mm/fault_64.c
View File

@ -113,9 +113,6 @@ static unsigned int get_user_insn(unsigned long tpc)
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
if (pmd_trans_huge(*pmdp)) {
if (pmd_trans_splitting(*pmdp))
goto out_irq_enable;
pa = pmd_pfn(*pmdp) << PAGE_SHIFT;
pa += tpc & ~HPAGE_MASK;

2
arch/sparc/mm/gup.c
View File

@ -114,7 +114,7 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
pmd_t pmd = *pmdp;
next = pmd_addr_end(addr, end);
if (pmd_none(pmd) || pmd_trans_splitting(pmd))
if (pmd_none(pmd))
return 0;
if (unlikely(pmd_large(pmd))) {
if (!gup_huge_pmd(pmdp, pmd, addr, next,