From: Andrew Morton <akpm@linux-foundation.org>
Date: Fri, 12 Jul 2019 03:54:59 +0000 (-0700)
Subject: include/linux/pagemap.h: document trylock_page() return value
X-Git-Tag: v5.3-rc1~120^2~93
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=f445884562dd8bc51eb4136bd21f014403d1813d;p=users%2Fjedix%2Flinux-maple.git

include/linux/pagemap.h: document trylock_page() return value

Cc: Henry Burns <henryburns@google.com>
Cc: Jonathan Adams <jwadams@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Vitaly Wool <vitalywool@gmail.com>
Cc: Xidong Wang <wangxidong_97@163.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index fe0b29bf2df7..6fd0d3aa492c 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -452,6 +452,9 @@ extern int __lock_page_or_retry(struct page *page, struct mm_struct *mm,
 				unsigned int flags);
 extern void unlock_page(struct page *page);
 
+/*
+ * Return true if the page was successfully locked
+ */
 static inline int trylock_page(struct page *page)
 {
 	page = compound_head(page);