The patch titled
lguest: more lazy_hcalls
has been added to the -mm tree. Its filename is
lguest-more-lazy_hcalls.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: lguest: more lazy_hcalls
From: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Some hypercalls can be batched: lazy_hcall is the wrapper which determines
this, so it's pretty harmless to use lazy_hcall() instead of hcall().
Before:
Time for one context switch via pipe: 6745 (6521 - 13966)
After:
Time for one context switch via pipe: 5406 (5170 - 7467)
Signed-off-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/lguest/lguest.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff -puN drivers/lguest/lguest.c~lguest-more-lazy_hcalls drivers/lguest/lguest.c
--- a/drivers/lguest/lguest.c~lguest-more-lazy_hcalls
+++ a/drivers/lguest/lguest.c
@@ -227,7 +227,7 @@ static void lguest_cpuid(unsigned int *e
static unsigned long current_cr0, current_cr3;
static void lguest_write_cr0(unsigned long val)
{
- hcall(LHCALL_TS, val & 8, 0, 0);
+ lazy_hcall(LHCALL_TS, val & 8, 0, 0);
current_cr0 = val;
}
@@ -249,7 +249,7 @@ static unsigned long lguest_read_cr2(voi
static void lguest_write_cr3(unsigned long cr3)
{
- hcall(LHCALL_NEW_PGTABLE, cr3, 0, 0);
+ lazy_hcall(LHCALL_NEW_PGTABLE, cr3, 0, 0);
current_cr3 = cr3;
}
@@ -289,7 +289,7 @@ static void lguest_set_pte(pte_t *ptep,
*ptep = pteval;
/* Don't bother with hypercall before initial setup. */
if (current_cr3)
- hcall(LHCALL_FLUSH_TLB, 1, 0, 0);
+ lazy_hcall(LHCALL_FLUSH_TLB, 1, 0, 0);
}
static void lguest_flush_tlb_single(unsigned long addr)
_
Patches currently in -mm which might be from rusty@xxxxxxxxxxxxxxx are
mm-clean-up-and-kernelify-shrinker-registration.patch
use-menuconfig-objects-ii-module-menu.patch
fix-stop_machine_run-problem-with-naughty-real-time-process.patch
cpu-hotplug-fix-ksoftirqd-termination-on-cpu-hotplug-with-naughty-realtime-process.patch
cpu-hotplug-fix-ksoftirqd-termination-on-cpu-hotplug-with-naughty-realtime-process-fix.patch
define-new-percpu-interface-for-shared-data.patch
use-the-new-percpu-interface-for-shared-data.patch
lguest-export-symbols-for-lguest-as-a-module.patch
lguest-the-guest-code.patch
lguest-the-guest-code-tidyups.patch
lguest-the-guest-code-tidyups-update.patch
lguest-the-guest-code-update-for-mm-disable-tsc-dont-set-pge-bit.patch
lguest-speed-up-paravirt_lazy_flush-handling.patch
lguest-more-lazy_hcalls.patch
lguest-the-host-code.patch
lguest-the-host-code-tidyups.patch
lguest-the-host-code-tidyups-update.patch
lguest-the-host-code-borkages.patch
lguest-the-asm-offsets.patch
lguest-the-makefile-and-kconfig.patch
lguest-the-makefile-and-kconfig-tidyups.patch
lguest-the-console-driver.patch
lguest-the-console-driver-tidyups.patch
lguest-the-net-driver.patch
lguest-the-net-driver-tidyups.patch
lguest-the-net-driver-tidyups-update.patch
lguest-the-block-driver.patch
lguest-the-block-driver-tidyups.patch
lguest-the-block-driver-tidyups-update.patch
lguest-the-documentation-example-launcher.patch
lguest-faster-tls-switching.patch
mm-clean-up-and-kernelify-shrinker-registration-reiser4.patch
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