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| author | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-07-02 15:33:54 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-07-03 16:40:45 -0400 |
| commit | 4ecaf7e98a3ae0c843d67c76649ecc694232834b (patch) | |
| tree | e7f5091b2535e28d6377195c18ef060ca56cd4ce /arch/powerpc/include/asm/agp.h | |
| parent | 22a40d14b572deb80c0648557f4bd502d7e83826 (diff) | |
| download | linux-4ecaf7e98a3ae0c843d67c76649ecc694232834b.tar.gz linux-4ecaf7e98a3ae0c843d67c76649ecc694232834b.tar.bz2 linux-4ecaf7e98a3ae0c843d67c76649ecc694232834b.zip | |
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: cf9f0f7c4c5bb ("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>
Diffstat (limited to 'arch/powerpc/include/asm/agp.h')
0 files changed, 0 insertions, 0 deletions