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authorIngo Molnar <mingo@elte.hu>2008-07-15 17:12:58 -0400
committerIngo Molnar <mingo@elte.hu>2008-07-15 17:12:58 -0400
commit1e09481365ce248dbb4eb06dad70129bb5807037 (patch)
treec0cff5bef95c8b5e7486f144718ade9a06c284dc /include/asm-powerpc/pgtable-ppc64.h
parent3e2f69fdd1b00166e7d589bce56b2d36a9e74374 (diff)
parentb9d2252c1e44fa83a4e65fdc9eb93db6297c55af (diff)
Merge branch 'linus' into core/softlockup
Conflicts: kernel/softlockup.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-powerpc/pgtable-ppc64.h')
-rw-r--r--include/asm-powerpc/pgtable-ppc64.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/asm-powerpc/pgtable-ppc64.h b/include/asm-powerpc/pgtable-ppc64.h
index cc6a43ba41d0..7686569a0bef 100644
--- a/include/asm-powerpc/pgtable-ppc64.h
+++ b/include/asm-powerpc/pgtable-ppc64.h
@@ -314,6 +314,16 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
314 old = pte_update(mm, addr, ptep, _PAGE_RW, 0); 314 old = pte_update(mm, addr, ptep, _PAGE_RW, 0);
315} 315}
316 316
317static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
318 unsigned long addr, pte_t *ptep)
319{
320 unsigned long old;
321
322 if ((pte_val(*ptep) & _PAGE_RW) == 0)
323 return;
324 old = pte_update(mm, addr, ptep, _PAGE_RW, 1);
325}
326
317/* 327/*
318 * We currently remove entries from the hashtable regardless of whether 328 * We currently remove entries from the hashtable regardless of whether
319 * the entry was young or dirty. The generic routines only flush if the 329 * the entry was young or dirty. The generic routines only flush if the