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d19ad0775d
In preparation to have arguments of a function passed to callbacks attached to functions as default, change the default callback prototype to receive a struct ftrace_regs as the forth parameter instead of a pt_regs. For callbacks that set the FL_SAVE_REGS flag in their ftrace_ops flags, they will now need to get the pt_regs via a ftrace_get_regs() helper call. If this is called by a callback that their ftrace_ops did not have a FL_SAVE_REGS flag set, it that helper function will return NULL. This will allow the ftrace_regs to hold enough just to get the parameters and stack pointer, but without the worry that callbacks may have a pt_regs that is not completely filled. Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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| .. | ||
| vdso | ||
| .gitignore | ||
| asm-offsets.c | ||
| atl2c.c | ||
| cacheinfo.c | ||
| devtree.c | ||
| dma.c | ||
| ex-entry.S | ||
| ex-exit.S | ||
| ex-scall.S | ||
| fpu.c | ||
| ftrace.c | ||
| head.S | ||
| irq.c | ||
| Makefile | ||
| module.c | ||
| nds32_ksyms.c | ||
| perf_event_cpu.c | ||
| pm.c | ||
| process.c | ||
| ptrace.c | ||
| setup.c | ||
| signal.c | ||
| sleep.S | ||
| stacktrace.c | ||
| sys_nds32.c | ||
| syscall_table.c | ||
| time.c | ||
| traps.c | ||
| vdso.c | ||
| vmlinux.lds.S | ||