Subject: [folded-merged] vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks-fix.patch removed from -mm tree
To: akpm@xxxxxxxxxxxxxxxxxxxx,cl@xxxxxxxxx,dchinner@xxxxxxxxxx,sergey.senozhatsky@xxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 07 Apr 2014 15:19:48 -0700
The patch titled
Subject: vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks-fix
has been removed from the -mm tree. Its filename was
vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks-fix.patch
This patch was dropped because it was folded into vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks.patch
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks-fix
Add comment. Again.
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Dave Chinner <dchinner@xxxxxxxxxx>
Cc: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/vmstat.h | 4 ++++
1 file changed, 4 insertions(+)
diff -puN include/linux/vmstat.h~vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks-fix include/linux/vmstat.h
--- a/include/linux/vmstat.h~vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks-fix
+++ a/include/linux/vmstat.h
@@ -27,6 +27,10 @@ struct vm_event_state {
DECLARE_PER_CPU(struct vm_event_state, vm_event_states);
+/*
+ * vm counters are allowed to be racy. Use raw_cpu_ops to avoid the
+ * local_irq_disable overhead.
+ */
static inline void __count_vm_event(enum vm_event_item item)
{
raw_cpu_inc(vm_event_states.event[item]);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
mmnuma-reorganize-change_pmd_range.patch
drivers-lguest-page_tablesc-rename-do_set_pte.patch
mm-add-debugfs-tunable-for-fault_around_order.patch
mm-per-thread-vma-caching.patch
mm-use-macros-from-compilerh-instead-of-__attribute__.patch
mm-vmallocc-enhance-vm_map_ram-comment.patch
mm-readaheadc-inline-ra_submit.patch
zram-use-zcomp-compressing-backends.patch
zram-return-error-valued-pointer-from-zcomp_create.patch
zram-propagate-error-to-user.patch
zram-support-req_discard.patch
include-linux-crash_dumph-add-vmcore_cleanup-prototype.patch
kernel-panicc-display-reason-at-end-pr_emerg.patch
fault-injection-set-bounds-on-what-proc-self-make-it-fail-accepts.patch
initramfs-debug-detected-compression-method.patch
slub-use-raw_cpu_inc-for-incrementing-statistics.patch
vmstat-use-raw_cpu_ops-to-avoid-false-positives-on-preemption-checks.patch
percpu-add-preemption-checks-to-__this_cpu-ops-fix-checkpatch-fixes.patch
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