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-rw-r--r--mm/filemap.c20
1 files changed, 0 insertions, 20 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 8332c77b1bd1..f30ef28405d3 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -606,26 +606,6 @@ struct page * find_get_page(struct address_space *mapping, unsigned long offset)
606EXPORT_SYMBOL(find_get_page); 606EXPORT_SYMBOL(find_get_page);
607 607
608/** 608/**
609 * find_trylock_page - find and lock a page
610 * @mapping: the address_space to search
611 * @offset: the page index
612 *
613 * Same as find_get_page(), but trylock it instead of incrementing the count.
614 */
615struct page *find_trylock_page(struct address_space *mapping, unsigned long offset)
616{
617 struct page *page;
618
619 read_lock_irq(&mapping->tree_lock);
620 page = radix_tree_lookup(&mapping->page_tree, offset);
621 if (page && TestSetPageLocked(page))
622 page = NULL;
623 read_unlock_irq(&mapping->tree_lock);
624 return page;
625}
626EXPORT_SYMBOL(find_trylock_page);
627
628/**
629 * find_lock_page - locate, pin and lock a pagecache page 609 * find_lock_page - locate, pin and lock a pagecache page
630 * @mapping: the address_space to search 610 * @mapping: the address_space to search
631 * @offset: the page index 611 * @offset: the page index