[PATCH] mm: filemap: add missing FGP_ flags in kerneldoc comment for pagecache_get_page

[Yang Shi <yang.shi@linux.alibaba.com>]

FGP_{WRITE|NOFS|NOWAIT} were missed in pagecache_get_page's kerneldoc
comment.

Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com>
---
 mm/filemap.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mm/filemap.c b/mm/filemap.c
index 0589aef..9b47ffe 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1590,6 +1590,9 @@ struct page *find_lock_entry(struct address_space *mapping, pgoff_t offset)
  * * %FGP_FOR_MMAP - The caller wants to do its own locking dance if the
  *   page is already in cache.  If the page was allocated, unlock it before
  *   returning so the caller can do the same dance.
+ * * %FGP_WRITE - The page will be written
+ * * %FGP_NOFS - __GFP_FS will get cleared in gfp mask
+ * * %FGP_NOWAIT - Don't get blocked by page lock
  *
  * If %FGP_LOCK or %FGP_CREAT are specified then the function may sleep even
  * if the %GFP flags specified for %FGP_CREAT are atomic.
-- 
1.8.3.1