Re: [PATCH v3 31/35] lib: add memory allocations report in show_mem()

Kent Overstreet
2024-02-13T04:34:00Z

On Mon, Feb 12, 2024 at 07:22:42PM -0500, Steven Rostedt wrote:
> On Mon, 12 Feb 2024 16:10:02 -0800
> Kees Cook <keescook@chromium.org> wrote:
>
> > > #endif
> > > +#ifdef CONFIG_MEM_ALLOC_PROFILING
> > > + {
> > > + struct seq_buf s;
> > > + char *buf = kmalloc(4096, GFP_ATOMIC);
> >
> > Why 4096? Maybe use PAGE_SIZE instead?
>
> Will it make a difference for architectures that don't have 4096 PAGE_SIZE?
> Like PowerPC which has PAGE_SIZE of anywhere between 4K to 256K!

it's just a string buffer