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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 /init
parent70f68ee81e2e9ad5105b8d2bd324e890e94c6ad9 (diff)
downloadlinux-9b32105ec6b13d32d5db6a6e7992c97ce54b5ea7.tar.gz
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 'init')
-rw-r--r--init/do_mounts_initrd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index 03ec0c1b7553..d1d3e53bdeef 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -36,7 +36,7 @@ __setup("noinitrd", no_initrd);
static int init_linuxrc(struct subprocess_info *info, struct cred *new)
{
- sys_unshare(CLONE_FS | CLONE_FILES);
+ ksys_unshare(CLONE_FS | CLONE_FILES);
/* stdin/stdout/stderr for /linuxrc */
ksys_open("/dev/console", O_RDWR, 0);
ksys_dup(0);