From: Chen Wandun <chenwandun@xxxxxxxxxx> Subject: mm/swapfile.c: fix comments for swapcache_prepare The -EEXIST returned by __swap_duplicate means there is a swap cache instead -EBUSY Link: http://lkml.kernel.org/r/20200212145754.27123-1-chenwandun@xxxxxxxxxx Signed-off-by: Chen Wandun <chenwandun@xxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/swapfile.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/swapfile.c~mm-swapfilec-fix-comments-for-swapcache_prepare +++ a/mm/swapfile.c @@ -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) _
