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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-16 12:36:06 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 20:16:06 +0200 |
| commit | e2aaa9f423367ee03755d632555c242629a08d00 (patch) | |
| tree | c1a4039cf313ab25dcee01b8c90e0fffdd7ff32a /init/do_mounts_initrd.c | |
| parent | 9b32105ec6b13d32d5db6a6e7992c97ce54b5ea7 (diff) | |
| download | lwn-e2aaa9f423367ee03755d632555c242629a08d00.tar.gz lwn-e2aaa9f423367ee03755d632555c242629a08d00.zip | |
kernel: add ksys_setsid() helper; remove in-kernel call to sys_setsid()
Using this helper allows us to avoid the in-kernel call to the
sys_setsid() 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_setsid().
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>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'init/do_mounts_initrd.c')
| -rw-r--r-- | init/do_mounts_initrd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c index d1d3e53bdeef..5a91aefa7305 100644 --- a/init/do_mounts_initrd.c +++ b/init/do_mounts_initrd.c @@ -45,7 +45,7 @@ static int init_linuxrc(struct subprocess_info *info, struct cred *new) ksys_chdir("/root"); ksys_mount(".", "/", NULL, MS_MOVE, NULL); ksys_chroot("."); - sys_setsid(); + ksys_setsid(); return 0; } |