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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-11 11:34:42 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 20:16:06 +0200
commit9b32105ec6b13d32d5db6a6e7992c97ce54b5ea7 (patch)
treec3a07615fb95216020d87c65638c55deb47b45ac /drivers/base
parentfs: add ksys_sync() helper; remove in-kernel calls to sys_sync() (diff)
downloadlinux-dev-9b32105ec6b13d32d5db6a6e7992c97ce54b5ea7.tar.xz
linux-dev-9b32105ec6b13d32d5db6a6e7992c97ce54b5ea7.zip
kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare()
Using this helper allows us to avoid the in-kernel calls to the sys_unshare() syscall. The ksys_ prefix denotes that this function is meant as a drop-in replacement for the syscall. In particular, it uses the same calling convention as sys_unshare(). This patch is part of a series which removes in-kernel calls to syscalls. On this basis, the syscall entry path can be streamlined. For details, see http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/devtmpfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 3f7ee954fd2c..f7768077e817 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -380,7 +380,7 @@ static int devtmpfsd(void *p)
{
char options[] = "mode=0755";
int *err = p;
- *err = sys_unshare(CLONE_NEWNS);
+ *err = ksys_unshare(CLONE_NEWNS);
if (*err)
goto out;
*err = ksys_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, options);