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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-03 12:29:15 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-03 12:29:15 -0700
commit20c4856b1d1939647f71dce5e54fe69fde80013f (patch)
treebfd8e91ad10acf867934d74c1cf9448f38c9fcd2 /include/asm-powerpc/tlb.h
parentc4d36a822e7c51cd6ffcf9133854d5e32489d269 (diff)
parent627aa944a17ba82ca3ba87dc1d6ee85bd314ec79 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix zImage.coff generation for 32-bit pmac [POWERPC] Fix compile breakage for IBM/AMCC 4xx arch/ppc platforms [POWERPC] Don't allow PMAC_APM_EMU for 64-bit [POWERPC] Compare irq numbers with NO_IRQ not IRQ_NONE [POWERPC] Fix return from pte_alloc_one() in out-of-memory case [POWERPC] Fix compile warning in pseries xics code [POWERPC] Don't use HOSTCFLAGS in BOOTCFLAGS [POWERPC] Create a zImage for legacy iSeries [POWERPC] pasemi idle uses hard_smp_processor_id [POWERPC] ps3/interrupt.c uses get_hard_smp_processor_id [POWERPC] Fix possible access to free pages [POWERPC] Fix compiler/assembler flags for Ebony platform boot files [POWERPC] Fix ppc32 single-stepping out of syscalls [POWERPC] Update documentation for of_find_node_by_type()
Diffstat (limited to 'include/asm-powerpc/tlb.h')
-rw-r--r--include/asm-powerpc/tlb.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-powerpc/tlb.h b/include/asm-powerpc/tlb.h
index 0a17682663d..66714042e43 100644
--- a/include/asm-powerpc/tlb.h
+++ b/include/asm-powerpc/tlb.h
@@ -38,6 +38,15 @@ extern void pte_free_finish(void);
static inline void tlb_flush(struct mmu_gather *tlb)
{
+ struct ppc64_tlb_batch *tlbbatch = &__get_cpu_var(ppc64_tlb_batch);
+
+ /* If there's a TLB batch pending, then we must flush it because the
+ * pages are going to be freed and we really don't want to have a CPU
+ * access a freed page because it has a stale TLB
+ */
+ if (tlbbatch->index)
+ __flush_tlb_pending(tlbbatch);
+
pte_free_finish();
}