The patch titled
Subject: mm, THP, swap: Silence a compiler warning
has been added to the -mm tree. Its filename is
mm-thp-swap-make-reuse_swap_page-works-for-thp-swapped-out-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-thp-swap-make-reuse_swap_page-works-for-thp-swapped-out-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-thp-swap-make-reuse_swap_page-works-for-thp-swapped-out-fix.patch
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------------------------------------------------------
From: Huang Ying <ying.huang@xxxxxxxxx>
Subject: mm, THP, swap: Silence a compiler warning
To fix the following compiler warning,
mm/swapfile.c: In function 'reuse_swap_page':
mm/swapfile.c:1429:16: warning: 'offset' may be used uninitialized in this function [-Wmaybe-uninitialized]
unsigned long offset;
^
This is a false positive report, but we should silence it anyway.
Link: http://lkml.kernel.org/r/87bmnzizjy.fsf@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: "Huang, Ying" <ying.huang@xxxxxxxxx>
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/swapfile.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/swapfile.c~mm-thp-swap-make-reuse_swap_page-works-for-thp-swapped-out-fix mm/swapfile.c
--- a/mm/swapfile.c~mm-thp-swap-make-reuse_swap_page-works-for-thp-swapped-out-fix
+++ a/mm/swapfile.c
@@ -1410,7 +1410,7 @@ static int page_trans_huge_map_swapcount
int *total_swapcount)
{
int i, map_swapcount, _total_mapcount, _total_swapcount;
- unsigned long offset;
+ unsigned long offset = 0;
struct swap_info_struct *si;
struct swap_cluster_info *ci = NULL;
unsigned char *map = NULL;
_
Patches currently in -mm which might be from ying.huang@xxxxxxxxx are
mm-thp-swap-support-to-clear-swap-cache-flag-for-thp-swapped-out.patch
mm-thp-swap-support-to-reclaim-swap-space-for-thp-swapped-out.patch
mm-thp-swap-make-reuse_swap_page-works-for-thp-swapped-out.patch
mm-thp-swap-make-reuse_swap_page-works-for-thp-swapped-out-fix.patch
mm-thp-swap-dont-allocate-huge-cluster-for-file-backed-swap-device.patch
block-thp-make-block_device_operationsrw_page-support-thp.patch
test-code-to-write-thp-to-swap-device-as-a-whole.patch
mm-thp-swap-support-to-split-thp-for-thp-swapped-out.patch
memcg-thp-swap-support-move-mem-cgroup-charge-for-thp-swapped-out.patch
memcg-thp-swap-avoid-to-duplicated-charge-thp-in-swap-cache.patch
memcg-thp-swap-make-mem_cgroup_swapout-support-thp.patch
mm-thp-swap-delay-splitting-thp-after-swapped-out.patch
mm-thp-swap-add-thp-swapping-out-fallback-counting.patch
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