diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2015-06-24 23:56:07 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-25 00:49:41 (GMT) |
| commit | cd0924112119547b0d3fb13a9ed99717d924c2be (patch) | |
| tree | 49a000c9132efe3fb88a9d31214511f6f38dae3b /mm | |
| parent | ebb09738d32b840be8157d556f7756e6dbcc1735 (diff) | |
| download | linux-cd0924112119547b0d3fb13a9ed99717d924c2be.tar.xz | |
thp: cleanup how khugepaged enters freezer
khugepaged_do_scan() checks in every iteration whether freezing(current)
is true, and in such case breaks out of the loop, which causes
try_to_freeze() to be called immediately afterwards in
khugepaged_wait_work().
If nothing else, this causes unnecessary freezing(current) test, and also
makes the way khugepaged enters freezer a bit less obvious than necessary.
Let's just try to freeze directly, instead of splitting it into two
(directly adjacent) phases.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/huge_memory.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 078832c..b3d8cd8 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2799,7 +2799,7 @@ static void khugepaged_do_scan(void) cond_resched(); - if (unlikely(kthread_should_stop() || freezing(current))) + if (unlikely(kthread_should_stop() || try_to_freeze())) break; spin_lock(&khugepaged_mm_lock); @@ -2820,8 +2820,6 @@ static void khugepaged_do_scan(void) static void khugepaged_wait_work(void) { - try_to_freeze(); - if (khugepaged_has_work()) { if (!khugepaged_scan_sleep_millisecs) return; |