Commit f4458845 authored Jul 11, 2019 by Andrew Morton Committed by Linus Torvalds Jul 12, 2019

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>

parent 98ef2046

include/linux/pagemap.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -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);