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Subject[PATCH 0/3] use do_mount() instead of ksys_mount()
This small series replaces all in-kernel calls to the
userspace-focused wrapper ksys_mount() with calls to
the kernel-centric do_mount().

For each replacement, one needs to verify that the first and
third parameter (char *dev_name, char *type) are strings
allocated in kernelspace and that the fifth parameter
(void *data) is either NULL or refers to a full page (only
occurence in init/do_mounts.c::do_mount_root()). The second
and fourth parameters (char *dir_name, unsigned long flags)
are passed by ksys_mount() to do_mount() unchanged, and
therefore do not require particular care.


@viro: is this something for you to take and push upstream
for the next cycle?

The same changes (on top of commit ae4b064e2a616b545acf02b8f50cc513b32c7522:

Merge tag 'afs-fixes-20191211' of git:// (2019-12-11 18:10:40 -0800)

are also available in the Git repository at:

git:// remove-ksys-mount

including all changes up to cccaa5e33525fc07f4a2ce0518e50b9ddf435e47:

init: use do_mount() instead of ksys_mount() (2019-12-12 14:50:05 +0100)

Dominik Brodowski (3):
devtmpfs: use do_mount() instead of ksys_mount()
initrd: use do_mount() instead of ksys_mount()
init: use do_mount() instead of ksys_mount()

drivers/base/devtmpfs.c | 6 +++---
fs/namespace.c | 10 ++--------
include/linux/device.h | 4 ++--
include/linux/syscalls.h | 2 --
init/do_mounts.c | 30 +++++++++++++++++++++++-------
init/do_mounts_initrd.c | 6 +++---
6 files changed, 33 insertions(+), 25 deletions(-)



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