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authorDominik Brodowski <linux@dominikbrodowski.net>2018-03-11 13:34:56 +0300
committerDominik Brodowski <linux@dominikbrodowski.net>2018-04-02 21:16:01 +0300
commitbae217ea8c7e123ed3fb1064909a262924771bbb (patch)
tree52e92c1130a87a5985698e469ee8673679553dd2 /init/do_mounts_initrd.c
parent2ca2a09d6215fd9621aa3e2db7cc9428a61f2911 (diff)
downloadlinux-bae217ea8c7e123ed3fb1064909a262924771bbb.tar.xz
fs: add ksys_open() wrapper; remove in-kernel calls to sys_open()
Using this wrapper allows us to avoid the in-kernel calls to the sys_open() 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_open(). 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> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'init/do_mounts_initrd.c')
-rw-r--r--init/do_mounts_initrd.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index 6907c6dbc443..cedca8fd2590 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -38,7 +38,7 @@ static int init_linuxrc(struct subprocess_info *info, struct cred *new)
{
sys_unshare(CLONE_FS | CLONE_FILES);
/* stdin/stdout/stderr for /linuxrc */
- sys_open("/dev/console", O_RDWR, 0);
+ ksys_open("/dev/console", O_RDWR, 0);
ksys_dup(0);
ksys_dup(0);
/* move initrd over / and chdir/chroot in initrd root */
@@ -99,7 +99,7 @@ static void __init handle_initrd(void)
if (!error)
printk("okay\n");
else {
- int fd = sys_open("/dev/root.old", O_RDWR, 0);
+ int fd = ksys_open("/dev/root.old", O_RDWR, 0);
if (error == -ENOENT)
printk("/initrd does not exist. Ignored.\n");
else