korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-24 04:34:08 +08:00
Code Issues Packages Projects Releases Wiki Activity

mm/mincore: use offset_in_page macro

Browse Source 
linux/mm.h provides offset_in_page() macro.  Let's use already predefined
macro instead of (addr & ~PAGE_MASK).

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexander Kuleshov 2015-11-05 18:46:38 -08:00 committed by Linus Torvalds
parent 1824cb7533
commit e7bbdd0713
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
mm/mincore.c
View File

@ -234,7 +234,7 @@ SYSCALL_DEFINE3(mincore, unsigned long, start, size_t, len,
/* This also avoids any overflows on PAGE_CACHE_ALIGN */
pages = len >> PAGE_SHIFT;
pages += (len & ~PAGE_MASK) != 0;
pages += (offset_in_page(len)) != 0;
if (!access_ok(VERIFY_WRITE, vec, pages))
return -EFAULT;