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mm/compaction.c: fix warning of 'flags' may be used uninitialized 

C      mm/compaction.o
mm/compaction.c: In function isolate_freepages_block:
mm/compaction.c:364:37: warning: flags may be used uninitialized in this function [-Wmaybe-uninitialized]
       && compact_unlock_should_abort(&cc->zone->lock, flags,
                                     ^

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Xiubo Li 2014-10-09 15:28:21 -07:00 committed by Linus Torvalds
parent ff26f70f43
commit b8b2d82532
1 changed files with 2 additions and 2 deletions
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4
mm/compaction.c
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@ -344,7 +344,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc,
{
int nr_scanned = 0, total_isolated = 0;
struct page *cursor, *valid_page = NULL;
unsigned long flags;
unsigned long flags = 0;
bool locked = false;
unsigned long blockpfn = *start_pfn;
@ -570,7 +570,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
unsigned long nr_scanned = 0, nr_isolated = 0;
struct list_head *migratelist = &cc->migratepages;
struct lruvec *lruvec;
unsigned long flags;
unsigned long flags = 0;
bool locked = false;
struct page *page = NULL, *valid_page = NULL;