diff options
| author | Christoph Lameter <clameter@sgi.com> | 2007-07-21 17:10:30 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-22 03:37:09 +0200 |
| commit | 34feb2c83beb3bdf13535a36770f7e50b47ef299 (patch) | |
| tree | 4abc3b0fe31495315f414677dcb5198967caa333 /arch | |
| parent | i386: timer_irq_works() static again (diff) | |
| download | linux-34feb2c83beb3bdf13535a36770f7e50b47ef299.tar.xz linux-34feb2c83beb3bdf13535a36770f7e50b47ef299.zip | |
x86_64: Quicklist support for x86_64
This adds caching of pgds and puds, pmds, pte. That way we can avoid costly
zeroing and initialization of special mappings in the pgd.
A second quicklist is useful to separate out PGD handling. We can carry the
initialized pgds over to the next process needing them.
Also clean up the pgd_list handling to use regular list macros. There is no
need anymore to avoid the lru field.
Move the add/removal of the pgds to the pgdlist into the constructor /
destructor. That way the implementation is congruent with i386.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "Luck, Tony" <tony.luck@intel.com>
Acked-by: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
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, 10 insertions, 1 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index fca1a85042ea..45f82ae6d389 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -60,6 +60,14 @@ 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 5909039f37aa..180f4c0fcbc4 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c @@ -207,6 +207,7 @@ 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 df4a82812adb..673a300b5944 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); |