Messages in this thread |  | | From | Dominik Brodowski <> | Subject | [PATCH 0/3] use do_mount() instead of ksys_mount() | Date | Thu, 12 Dec 2019 14:57:21 +0100 |
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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.
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@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://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs (2019-12-11 18:10:40 -0800)
are also available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux.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(-)
Thanks, Dominik
-- 2.24.1
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