On Wed, 14 Feb 2024 18:54:07 -0500
Steven Rostedt wrote:
> On Thu, 15 Feb 2024 08:45:52 +0900
> Masami Hiramatsu (Google) wrote:
>
> > > Hmm, the above is a fast path. I wonder if we should add a patch to make
> > > that into:
> > >
> > > if (unlikely(size_bytes & (sizeof(long) - 1)))
> >
On Thu, 15 Feb 2024 08:45:52 +0900
Masami Hiramatsu (Google) wrote:
> > Hmm, the above is a fast path. I wonder if we should add a patch to make
> > that into:
> >
> > if (unlikely(size_bytes & (sizeof(long) - 1)))
> > data_size = DIV_ROUND_UP(size_bytes, sizeof(long));
> >
On Wed, 14 Feb 2024 13:59:58 -0500
Steven Rostedt wrote:
> On Wed, 7 Feb 2024 00:11:01 +0900
> "Masami Hiramatsu (Google)" wrote:
>
> > From: Ste
> > +/**
> > + * fgraph_reserve_data - Reserve storage on the task's ret_stack
> > + * @idx: The index of fgraph_array
> > + * @size_bytes: The
On Wed, 7 Feb 2024 00:11:01 +0900
"Masami Hiramatsu (Google)" wrote:
> From: Ste
> +/**
> + * fgraph_reserve_data - Reserve storage on the task's ret_stack
> + * @idx: The index of fgraph_array
> + * @size_bytes: The size in bytes to reserve
> + *
> + * Reserves space of up to
From: Steven Rostedt (VMware)
Added functions that can be called by a fgraph_ops entryfunc and retfunc to
store state between the entry of the function being traced to the exit of
the same function. The fgraph_ops entryfunc() may call
fgraph_reserve_data() to store up to 32 words onto the task's
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