[PATCH v2 0/4] module autoloading fixes and cleanups

[Eric Biggers <ebiggers@kernel.org>]

This series fixes a bug where request_module() was reporting success to
kernel code when module autoloading had been completely disabled via
'echo > /proc/sys/kernel/modprobe'.

It also addresses the issues raised on the original thread
(https://lkml.kernel.org/lkml/20200310223731.126894-1-ebiggers@kernel.org/T/#u)
by documenting the modprobe sysctl, adding a self-test for the empty
path case, and downgrading a user-reachable WARN_ONCE().

Eric Biggers (4):
  kmod: make request_module() return an error when autoloading is
    disabled
  fs/filesystems.c: downgrade user-reachable WARN_ONCE() to
    pr_warn_once()
  docs: admin-guide: document the kernel.modprobe sysctl
  selftests: kmod: test disabling module autoloading

 Documentation/admin-guide/sysctl/kernel.rst | 25 +++++++++++-
 fs/filesystems.c                            |  4 +-
 kernel/kmod.c                               |  4 +-
 tools/testing/selftests/kmod/kmod.sh        | 43 +++++++++++++++++++--
 4 files changed, 68 insertions(+), 8 deletions(-)

-- 
2.25.1