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Subject: Re: [PATCH] shmem missing cache flush
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Matthew Wilcox <willy@debian.org>
Cc: "David S. Miller" <davem@redhat.com>, rmk@arm.linux.org.uk,
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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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