Peter Oberparleiter 53320a9994 s390/hypfs: Enable limited access during lockdown ... [ Upstream commit 3868f91044 ] When kernel lockdown is active, debugfs_locked_down() blocks access to hypfs files that register ioctl callbacks, even if the ioctl interface is not required for a function. This unnecessarily breaks userspace tools that only rely on read operations. Resolve this by registering a minimal set of file operations during lockdown, avoiding ioctl registration and preserving access for affected tooling. Note that this change restores hypfs functionality when lockdown is active from early boot (e.g. via lockdown=integrity kernel parameter), but does not apply to scenarios where lockdown is enabled dynamically while Linux is running. Tested-by: Mete Durlu <meted@linux.ibm.com> Reviewed-by: Vasily Gorbik <gor@linux.ibm.com> Fixes: 5496197f9b ("debugfs: Restrict debugfs when the kernel is locked down") Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-08-28 16:24:39 +02:00
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appldata
boot
configs
crypto
hypfs	s390/hypfs: Enable limited access during lockdown	2025-08-28 16:24:39 +02:00
include	s390/time: Use monotonic clock in get_cycles()	2025-08-28 16:24:20 +02:00
kernel	s390/stp: Remove udelay from stp_sync_clock()	2025-08-28 16:24:20 +02:00
kvm	KVM: s390: Don't use %pK through tracepoints	2025-05-02 07:44:36 +02:00
lib
mm	mm/ptdump: take the memory hotplug lock inside ptdump_walk_pgd()	2025-08-28 16:24:32 +02:00
net	s390/bpf: Store backchain even for leaf progs	2025-06-27 11:05:13 +01:00
pci	s390/pci: Fix __pcilg_mio_inuser() inline assembly	2025-06-27 11:05:38 +01:00
purgatory	s390: Add '-std=gnu11' to decompressor and purgatory CFLAGS	2025-07-10 15:57:42 +02:00
tools
Kbuild
Kconfig
Kconfig.debug
Makefile	s390: Add '-std=gnu11' to decompressor and purgatory CFLAGS	2025-07-10 15:57:42 +02:00