linux/Documentation/userspace-api
Steven Rostedt (Google) 4ecaf7e98a tracing: Have memmapped ring buffer use ioctl of "R" range 0x20-2F
To prevent conflicts with other ioctl numbers to allow strace to have an
idea of what is happening, add the range of ioctls for the trace buffer
mapping from _IO("T", 0x1) to the range of "R" 0x20 - 0x2F.

Link: https://lore.kernel.org/linux-trace-kernel/20240630105322.GA17573@altlinux.org/
Link: https://lore.kernel.org/linux-trace-kernel/20240630213626.GA23566@altlinux.org/

Cc: Jonathan Corbet <corbet@lwn.net>
Fixes: cf9f0f7c4c ("tracing: Allow user-space mapping of the ring-buffer")
Link: https://lore.kernel.org/20240702153354.367861db@rorschach.local.home
Reported-by: "Dmitry V. Levin" <ldv@strace.io>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-07-03 16:40:45 -04:00
..
accelerators
ebpf
gpio
ioctl tracing: Have memmapped ring buffer use ioctl of "R" range 0x20-2F 2024-07-03 16:40:45 -04:00
media media: Documentation: v4l: Fix ACTIVE route flag 2024-05-28 08:00:14 +02:00
netlink
ELF.rst
dcdbas.rst
dma-buf-alloc-exchange.rst
futex2.rst
index.rst mm/memfd: add documentation for MFD_NOEXEC_SEAL MFD_EXEC 2024-06-15 10:43:07 -07:00
iommu.rst
iommufd.rst
isapnp.rst
landlock.rst
lsm.rst
mfd_noexec.rst mm/memfd: add documentation for MFD_NOEXEC_SEAL MFD_EXEC 2024-06-15 10:43:07 -07:00
mseal.rst mseal: add documentation 2024-05-23 19:40:26 -07:00
no_new_privs.rst
perf_ring_buffer.rst
seccomp_filter.rst
spec_ctrl.rst
sysfs-platform_profile.rst
tee.rst
unshare.rst
vduse.rst