[PATCH] mm: remove find_trylock_page
Remove find_trylock_page as per the removal schedule.
Signed-off-by: Nick Piggin <npiggin@suse.de>
[ Let's see if anybody screams ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 2dc5e5d..4a1d897 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -186,18 +186,6 @@
---------------------------
-What: find_trylock_page
-When: January 2007
-Why: The interface no longer has any callers left in the kernel. It
- is an odd interface (compared with other find_*_page functions), in
- that it does not take a refcount to the page, only the page lock.
- It should be replaced with find_get_page or find_lock_page if possible.
- This feature removal can be reevaluated if users of the interface
- cannot cleanly use something else.
-Who: Nick Piggin <npiggin@suse.de>
-
----------------------------
-
What: Interrupt only SA_* flags
When: Januar 2007
Why: The interrupt related SA_* flags are replaced by IRQF_* to move them
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index c3e255b..7a8dcb8 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -76,8 +76,6 @@
unsigned long index);
extern struct page * find_lock_page(struct address_space *mapping,
unsigned long index);
-extern __deprecated_for_modules struct page * find_trylock_page(
- struct address_space *mapping, unsigned long index);
extern struct page * find_or_create_page(struct address_space *mapping,
unsigned long index, gfp_t gfp_mask);
unsigned find_get_pages(struct address_space *mapping, pgoff_t start,
diff --git a/mm/filemap.c b/mm/filemap.c
index 8332c77..f30ef28 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -606,26 +606,6 @@
EXPORT_SYMBOL(find_get_page);
/**
- * find_trylock_page - find and lock a page
- * @mapping: the address_space to search
- * @offset: the page index
- *
- * Same as find_get_page(), but trylock it instead of incrementing the count.
- */
-struct page *find_trylock_page(struct address_space *mapping, unsigned long offset)
-{
- struct page *page;
-
- read_lock_irq(&mapping->tree_lock);
- page = radix_tree_lookup(&mapping->page_tree, offset);
- if (page && TestSetPageLocked(page))
- page = NULL;
- read_unlock_irq(&mapping->tree_lock);
- return page;
-}
-EXPORT_SYMBOL(find_trylock_page);
-
-/**
* find_lock_page - locate, pin and lock a pagecache page
* @mapping: the address_space to search
* @offset: the page index