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-rw-r--r--mm/rmap.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index 6f3f7db27128..66ec43053a4d 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -514,6 +514,13 @@ void page_add_file_rmap(struct page *page)
514void page_remove_rmap(struct page *page) 514void page_remove_rmap(struct page *page)
515{ 515{
516 if (atomic_add_negative(-1, &page->_mapcount)) { 516 if (atomic_add_negative(-1, &page->_mapcount)) {
517 if (page_mapcount(page) < 0) {
518 printk (KERN_EMERG "Eeek! page_mapcount(page) went negative! (%d)\n", page_mapcount(page));
519 printk (KERN_EMERG " page->flags = %lx\n", page->flags);
520 printk (KERN_EMERG " page->count = %x\n", page_count(page));
521 printk (KERN_EMERG " page->mapping = %p\n", page->mapping);
522 }
523
517 BUG_ON(page_mapcount(page) < 0); 524 BUG_ON(page_mapcount(page) < 0);
518 /* 525 /*
519 * It would be tidy to reset the PageAnon mapping here, 526 * It would be tidy to reset the PageAnon mapping here,