diff options
| author | Mel Gorman <mgorman@suse.de> | 2014-06-05 01:10:19 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-05 01:54:09 +0200 |
| commit | cfc47a2803db42140167b92d991ef04018e162c7 (patch) | |
| tree | 45ba771f22c0f284cc132133933b7eb9a9a415b5 /mm/page_alloc.c | |
| parent | mm: page_alloc: reduce number of times page_to_pfn is called (diff) | |
| download | linux-cfc47a2803db42140167b92d991ef04018e162c7.tar.xz linux-cfc47a2803db42140167b92d991ef04018e162c7.zip | |
mm: page_alloc: lookup pageblock migratetype with IRQs enabled during free
get_pageblock_migratetype() is called during free with IRQs disabled.
This is unnecessary and disables IRQs for longer than necessary.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Jan Kara <jack@suse.cz>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | mm/page_alloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6cadc8678e28..ce4d3716214c 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -774,9 +774,9 @@ static void __free_pages_ok(struct page *page, unsigned int order) if (!free_pages_prepare(page, order)) return; + migratetype = get_pfnblock_migratetype(page, pfn); local_irq_save(flags); __count_vm_events(PGFREE, 1 << order); - migratetype = get_pfnblock_migratetype(page, pfn); set_freepage_migratetype(page, migratetype); free_one_page(page_zone(page), page, pfn, order, migratetype); local_irq_restore(flags); |