diff options
| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-11 13:34:41 +0300 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 21:15:50 +0300 |
| commit | a16fe33ab5572e52ef4cb9719d6eb49623b2528a (patch) | |
| tree | 3a917bd107f2da721eaa190dfb270c18ec7338df /drivers/base/devtmpfs.c | |
| parent | c7248321a3d42ffba78db0dde88d1c49ca1c045f (diff) | |
| download | linux-a16fe33ab5572e52ef4cb9719d6eb49623b2528a.tar.xz | |
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 'drivers/base/devtmpfs.c')
| -rw-r--r-- | drivers/base/devtmpfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c index 4afb04686c8e..5743f04014ca 100644 --- a/drivers/base/devtmpfs.c +++ b/drivers/base/devtmpfs.c @@ -387,7 +387,7 @@ static int devtmpfsd(void *p) if (*err) goto out; sys_chdir("/.."); /* will traverse into overmounted root */ - sys_chroot("."); + ksys_chroot("."); complete(&setup_done); while (1) { spin_lock(&req_lock); |