[PATCH] GTOD: persistent clock support

[sfrench/cifs-2.6.git] / mm / filemap.c

diff --git a/mm/filemap.c b/mm/filemap.c
index 8332c77b1bd123fdd76b2a9b2d966711a45b124b..00414849a86712c40ce174c900fe9b67cc9eb096 100644 (file)
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -327,7 +327,7 @@ EXPORT_SYMBOL(sync_page_range);
  * @pos:       beginning offset in pages to write
  * @count:     number of bytes to write
  *
- * Note: Holding i_mutex across sync_page_range_nolock is not a good idea
+ * Note: Holding i_mutex across sync_page_range_nolock() is not a good idea
  * as it forces O_SYNC writers to different parts of the same file
  * to be serialised right until io completion.
  */
@@ -605,26 +605,6 @@ struct page * find_get_page(struct address_space *mapping, unsigned long offset)
 }
 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
@@ -804,7 +784,7 @@ unsigned find_get_pages_tag(struct address_space *mapping, pgoff_t *index,
  * @mapping: target address_space
  * @index: the page index
  *
- * Same as grab_cache_page, but do not wait if the page is unavailable.
+ * Same as grab_cache_page(), but do not wait if the page is unavailable.
  * This is intended for speculative data generators, where the data can
  * be regenerated if the page couldn't be grabbed.  This routine should
  * be safe to call while holding the lock for another page.