The patch titled
Subject: ksm-provide-support-to-use-deferrable-timers-for-scanner-thread-fix
has been removed from the -mm tree. Its filename was
ksm-provide-support-to-use-deferrable-timers-for-scanner-thread-fix.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: ksm-provide-support-to-use-deferrable-timers-for-scanner-thread-fix
clean up docs, fix deferrable_timer_store() error handling
Cc: Chintan Pandya <cpandya@xxxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: John Stultz <john.stultz@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/vm/ksm.txt | 12 ++++++------
mm/ksm.c | 9 +++++----
2 files changed, 11 insertions(+), 10 deletions(-)
diff -puN Documentation/vm/ksm.txt~ksm-provide-support-to-use-deferrable-timers-for-scanner-thread-fix Documentation/vm/ksm.txt
--- a/Documentation/vm/ksm.txt~ksm-provide-support-to-use-deferrable-timers-for-scanner-thread-fix
+++ a/Documentation/vm/ksm.txt
@@ -88,12 +88,12 @@ pages_unshared - how many pages unique
pages_volatile - how many pages changing too fast to be placed in a tree
full_scans - how many times all mergeable areas have been scanned
deferrable_timer - whether to use deferrable timers or not
- e.g. "echo 1 > /sys/kernel/mm/ksm/deferrable_timer"
- Default: 0 (means, we are not using deferrable timers. Users
- might want to set deferrable_timer option if they donot want
- ksm thread to wakeup CPU to carryout ksm activities thus
- gaining on battery while compromising slightly on memory
- that could have been saved.)
+ e.g. "echo 1 > /sys/kernel/mm/ksm/deferrable_timer"
+ Default: 0 (means, we are not using deferrable timers. Users
+ might want to set deferrable_timer option if they donot want
+ ksm thread to wakeup CPU to carryout ksm activities thus
+ gaining on battery while compromising slightly on memory
+ that could have been saved.)
A high ratio of pages_sharing to pages_shared indicates good sharing, but
a high ratio of pages_unshared to pages_sharing indicates wasted effort.
diff -puN mm/ksm.c~ksm-provide-support-to-use-deferrable-timers-for-scanner-thread-fix mm/ksm.c
--- a/mm/ksm.c~ksm-provide-support-to-use-deferrable-timers-for-scanner-thread-fix
+++ a/mm/ksm.c
@@ -2202,10 +2202,11 @@ static ssize_t deferrable_timer_store(st
int err;
err = kstrtoul(buf, 10, &enable);
-
- if (enable == 0 || enable == 1)
- use_deferrable_timer = enable;
-
+ if (err < 0)
+ return err;
+ if (enable >= 1)
+ return -EINVAL;
+ use_deferrable_timer = enable;
return count;
}
KSM_ATTR(deferrable_timer);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
i-need-old-gcc.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
maintainers-akpm-maintenance.patch
kernel-posix-timersc-code-clean-up-checkpatch-fixes.patch
input-route-kbd-leds-through-the-generic-leds-layer.patch
ocfs2-free-inode-when-i_count-becomes-zero.patch
mm.patch
mm-hugetlb-remove-unused-argument-of-follow_huge_pmdpud.patch
mm-introduce-do_shared_fault-and-drop-do_fault-fix-fix.patch
mm-compactionc-isolate_freepages_block-small-tuneup.patch
do_shared_fault-check-that-mmap_sem-is-held.patch
binfmt_elfc-use-get_random_int-to-fix-entropy-depleting-fix.patch
fs-isofs-logging-clean-up-fix.patch
linux-next.patch
drivers-gpio-gpio-zevioc-fix-build.patch
ksm-provide-support-to-use-deferrable-timers-for-scanner-thread-fix-fix-2.patch
mm-replace-remap_file_pages-syscall-with-emulation-fix.patch
debugging-keep-track-of-page-owners.patch
journal_add_journal_head-debug.patch
journal_add_journal_head-debug-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
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