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authorLance Roy <ldr709@gmail.com>2018-10-05 09:45:47 +0300
committerPaul E. McKenney <paulmck@linux.ibm.com>2018-11-12 20:06:22 +0300
commit35f3aa39f243e8c95e12a2b2d05b1d2e62ac58a4 (patch)
tree226932965821030f976652aa625b01613d053365 /mm/swap.c
parent04547728b7b775333a4f6fbb3c55102a79dc4596 (diff)
downloadlinux-35f3aa39f243e8c95e12a2b2d05b1d2e62ac58a4.tar.xz
mm: Replace spin_is_locked() with lockdep
lockdep_assert_held() is better suited to checking locking requirements, since it only checks if the current thread holds the lock regardless of whether someone else does. This is also a step towards possibly removing spin_is_locked(). Signed-off-by: Lance Roy <ldr709@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Yang Shi <yang.shi@linux.alibaba.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Mel Gorman <mgorman@techsingularity.net> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Jan Kara <jack@suse.cz> Cc: Shakeel Butt <shakeelb@google.com> Cc: <linux-mm@kvack.org> Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'mm/swap.c')
-rw-r--r--mm/swap.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/swap.c b/mm/swap.c
index aa483719922e..5d786019eab9 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -823,8 +823,7 @@ void lru_add_page_tail(struct page *page, struct page *page_tail,
VM_BUG_ON_PAGE(!PageHead(page), page);
VM_BUG_ON_PAGE(PageCompound(page_tail), page);
VM_BUG_ON_PAGE(PageLRU(page_tail), page);
- VM_BUG_ON(NR_CPUS != 1 &&
- !spin_is_locked(&lruvec_pgdat(lruvec)->lru_lock));
+ lockdep_assert_held(&lruvec_pgdat(lruvec)->lru_lock);
if (!list)
SetPageLRU(page_tail);