From: Rasmus Villemoes Date: Wed, 4 Jun 2014 23:07:58 +0000 (-0700) Subject: mm: constify nmask argument to set_mempolicy() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=23c8902d403ef9a04cdc367d0b76a3ed6d83f5c5;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git mm: constify nmask argument to set_mempolicy() The nmask argument to set_mempolicy() is const according to the user-space header numaif.h, and since the kernel does indeed not modify it, it might as well be declared const in the kernel. Signed-off-by: Rasmus Villemoes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index bfef0be279dd..b0881a0ed322 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -711,7 +711,7 @@ asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, asmlinkage long sys_ioprio_set(int which, int who, int ioprio); asmlinkage long sys_ioprio_get(int which, int who); -asmlinkage long sys_set_mempolicy(int mode, unsigned long __user *nmask, +asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, unsigned long maxnode); asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, const unsigned long __user *from, diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 727187f1155b..b09586d8316b 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1383,7 +1383,7 @@ SYSCALL_DEFINE6(mbind, unsigned long, start, unsigned long, len, } /* Set the process memory policy */ -SYSCALL_DEFINE3(set_mempolicy, int, mode, unsigned long __user *, nmask, +SYSCALL_DEFINE3(set_mempolicy, int, mode, const unsigned long __user *, nmask, unsigned long, maxnode) { int err;