Re: [PATCH] shmem missing cache flush

Alan Cox (alan@lxorguk.ukuu.org.uk)
28 Oct 2002 17:08:17 +0000


On Mon, 2002-10-28 at 16:36, Matthew Wilcox wrote:
> fs/binfmt_aout.c:357: flush_icache_range(text_addr, text_addr+ex.a_text+ex.a_data);
> fs/binfmt_aout.c:381: flush_icache_range((unsigned long) N_TXTADDR(ex),
> fs/binfmt_aout.c:479: flush_icache_range((unsigned long) start_addr,
> fs/binfmt_elf.c:422: flush_icache_range((unsigned long)addr,
>
> the kernel doesn't execute the code ranges here, userspace does. Which
> means that the only place in the entire kernel which does need to call

Suppose those addresses are already in the userspace icache from a
different exec ?

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