linux-kernel - [PATCH] mm: filemap: add missing FGP_ flags in kerneldoc comment for pagecache_get

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Message-Id: <1593031747-4249-1-git-send-email-yang.shi@linux.alibaba.com>
Date:   Thu, 25 Jun 2020 04:49:07 +0800
From:   Yang Shi <yang.shi@...ux.alibaba.com>
To:     akpm@...ux-foundation.org
Cc:     yang.shi@...ux.alibaba.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] mm: filemap: add missing FGP_ flags in kerneldoc comment for pagecache_get_page

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

Signed-off-by: Yang Shi <yang.shi@...ux.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