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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-11 11:34:41 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 20:15:50 +0200 |
| commit | a16fe33ab5572e52ef4cb9719d6eb49623b2528a (patch) | |
| tree | 3a917bd107f2da721eaa190dfb270c18ec7338df /init/do_mounts.c | |
| parent | c7248321a3d42ffba78db0dde88d1c49ca1c045f (diff) | |
| download | linux-a16fe33ab5572e52ef4cb9719d6eb49623b2528a.tar.bz2 | |
fs: add ksys_chroot() helper; remove-in kernel calls to sys_chroot()
Using this helper allows us to avoid the in-kernel calls to the
sys_chroot() 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_chroot().
In the near future, the fs-external callers of ksys_chroot() should be
converted to use kern_path()/set_fs_root() directly. Then ksys_chroot()
can be moved within sys_chroot() again.
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: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'init/do_mounts.c')
| -rw-r--r-- | init/do_mounts.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/init/do_mounts.c b/init/do_mounts.c index eb768de43d84..2f06f7827b0c 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -600,7 +600,7 @@ void __init prepare_namespace(void) out: devtmpfs_mount("dev"); ksys_mount(".", "/", NULL, MS_MOVE, NULL); - sys_chroot("."); + ksys_chroot("."); } static bool is_tmpfs; |