Re: [PATCH v3] kprobe/ftrace: bail out if ftrace was killed
From: Steven Rostedt <rostedt@goodmis.org>
Date: 2024-05-06 22:50:18
Also in:
linux-riscv, linux-s390, linux-trace-kernel, lkml, loongarch
On Mon, 6 May 2024 14:46:57 +0000 Christophe Leroy [off-list ref] wrote:
Isn't it safer to provide a fonction rather than a direct access to a variable ? By the way, wouldn't it be more performant to use a static branch (jump label) ?
A static branch could work, but the point of this is that if ftrace failed, it was likely due to an issue with text modification. Do we want to stop it via text modification? -- Steve