Commit 3eeba135 authored Apr 01, 2020 by Chen Wandun Committed by Linus Torvalds Apr 02, 2020

mm/swapfile.c: fix comments for swapcache_prepare



The -EEXIST returned by __swap_duplicate means there is a swap cache
instead -EBUSY

Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20200212145754.27123-1-chenwandun@huawei.com


Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent df3a0a21

mm/swapfile.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -3475,7 +3475,7 @@ int swap_duplicate(swp_entry_t entry)
		*
		* Called when allocating swap cache for existing swap entry,
		* This can return error codes. Returns 0 at success.
		* -EBUSY means there is a swap cache.
		* -EEXIST means there is a swap cache.
		* Note: return code is different from swap_duplicate().
		*/
		int swapcache_prepare(swp_entry_t entry)