On Tue, 16 Sep 2025 00:12:05 +0100, Mark Brown wrote:

[ I think at this point everyone is OK with the ABI, and the x86
  implementation has been tested so hopefully we are near to being
  able to get this merged?  If there are any outstanding issues let
  me know and I can look at addressing them.  The one possible issue
  I am aware of is that the RISC-V shadow stack support was briefly
  in -next but got dropped along with the general RISC-V issues during
  the last merge window, rebasing for that is still in progress.  I
  guess ideally this could be applied on a branch and then pulled into
  the RISC-V tree? ]

[...]

Applied to the kernel-6.18.clone3 branch of the vfs/vfs.git tree.
Patches in the kernel-6.18.clone3 branch should appear in linux-next soon.

Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.

It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.

Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: kernel-6.18.clone3

[1/8] arm64/gcs: Return a success value from gcs_alloc_thread_stack()
      https://git.kernel.org/vfs/vfs/c/053b5d3aac29
[2/8] Documentation: userspace-api: Add shadow stack API documentation
      https://git.kernel.org/vfs/vfs/c/b495e1f0502e
[3/8] selftests: Provide helper header for shadow stack testing
      https://git.kernel.org/vfs/vfs/c/0ba39d41c241
[4/8] fork: Add shadow stack support to clone3()
      https://git.kernel.org/vfs/vfs/c/871b4dc7c705
[5/8] selftests/clone3: Remove redundant flushes of output streams
      https://git.kernel.org/vfs/vfs/c/c4aef60520c3
[6/8] selftests/clone3: Factor more of main loop into test_clone3()
      https://git.kernel.org/vfs/vfs/c/b3925f5b857b
[7/8] selftests/clone3: Allow tests to flag if -E2BIG is a valid error code
      https://git.kernel.org/vfs/vfs/c/9012e184d017
[8/8] selftests/clone3: Test shadow stack support
      https://git.kernel.org/vfs/vfs/c/c764fa47e7ec