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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-09-21 12:09:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-09-21 12:09:41 -0700 |
| commit | da8f153e51290e7438ba7da66234a864e5d3e1c1 (patch) | |
| tree | 90d3cc5eeb5d2e18877ccb1123a4df7873fd3c58 /arch | |
| parent | 077a6c26696c63305eebafbb71890c95e2750b6d (diff) | |
| download | op-kernel-dev-da8f153e51290e7438ba7da66234a864e5d3e1c1.zip op-kernel-dev-da8f153e51290e7438ba7da66234a864e5d3e1c1.tar.gz | |
Revert "x86_64: Quicklist support for x86_64"
This reverts commit 34feb2c83beb3bdf13535a36770f7e50b47ef299.
Suresh Siddha points out that this one breaks the fundamental
requirement that you cannot free page table pages before the TLB caches
are flushed. The quicklists do not give the same kinds of guarantees
that the mmu_gather structure does, at least not in NUMA configurations.
Requested-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Andi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Asit Mallick <asit.k.mallick@intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86_64/Kconfig | 8 | ||||
| -rw-r--r-- | arch/x86_64/kernel/process.c | 1 | ||||
| -rw-r--r-- | arch/x86_64/kernel/smp.c | 2 |
3 files changed, 1 insertions, 10 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index ffa0364..b4d9089 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -60,14 +60,6 @@ config ZONE_DMA bool default y -config QUICKLIST - bool - default y - -config NR_QUICK - int - default 2 - config ISA bool diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c index 2842f50..9895655 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c @@ -208,7 +208,6 @@ void cpu_idle (void) if (__get_cpu_var(cpu_idle_state)) __get_cpu_var(cpu_idle_state) = 0; - check_pgt_cache(); rmb(); idle = pm_idle; if (!idle) diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c index 673a300..df4a828 100644 --- a/arch/x86_64/kernel/smp.c +++ b/arch/x86_64/kernel/smp.c @@ -241,7 +241,7 @@ void flush_tlb_mm (struct mm_struct * mm) } if (!cpus_empty(cpu_mask)) flush_tlb_others(cpu_mask, mm, FLUSH_ALL); - check_pgt_cache(); + preempt_enable(); } EXPORT_SYMBOL(flush_tlb_mm); |
