The patch titled
swap prefetch: avoid repeating entry
has been added to the -mm tree. Its filename is
swap-prefetch-avoid-repeating-entry.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: swap prefetch: avoid repeating entry
From: Con Kolivas <kernel@xxxxxxxxxxx>
Avoid entering trickle_swap() when first initialising kprefetchd to prevent
endless loops.
Signed-off-by: Con Kolivas <kernel@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/swap_prefetch.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN mm/swap_prefetch.c~swap-prefetch-avoid-repeating-entry mm/swap_prefetch.c
--- a/mm/swap_prefetch.c~swap-prefetch-avoid-repeating-entry
+++ a/mm/swap_prefetch.c
@@ -515,6 +515,10 @@ static int kprefetchd(void *__unused)
/* Set ioprio to lowest if supported by i/o scheduler */
sys_ioprio_set(IOPRIO_WHO_PROCESS, 0, IOPRIO_CLASS_IDLE);
+ /* kprefetchd has nothing to do until it is woken up the first time */
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule();
+
do {
try_to_freeze();
_
Patches currently in -mm which might be from kernel@xxxxxxxxxxx are
origin.patch
sched-fix-idle-load-balancing-in-softirqd-context-fix.patch
sched-add-above-background-load-function.patch
mm-implement-swap-prefetching.patch
swap-prefetch-avoid-repeating-entry.patch
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