From: Randolph Chung <randolph@tausq.org>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: rmk+lkml@arm.linux.org.uk, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org
Subject: Re: fuse, get_user_pages, flush_anon_page, aliasing caches and all that again
Date: Fri, 22 Dec 2006 07:51:34 +0800 [thread overview]
Message-ID: <458B1E06.1030209@tausq.org> (raw)
In-Reply-To: <E1GxTED-0000yy-00@dorka.pomaz.szeredi.hu>
> I understand now. I'm not sure how the PARISC implementation can be
> correct in this light.
According to cachetlb.txt:
void flush_anon_page(struct page *page, unsigned long vmaddr)
When the kernel needs to access the contents of an anonymous
page, it calls this function (currently only
get_user_pages()). Note: flush_dcache_page() deliberately
doesn't work for an anonymous page. The default
implementation is a nop (and should remain so for all coherent
architectures). For incoherent architectures, it should flush
the cache of the page at vmaddr in the current user process.
^^^^^^^^^^^^^^^^^^^^
Is the documentation wrong?
randolph
next prev parent reply other threads:[~2006-12-22 0:42 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-21 15:26 fuse, get_user_pages, flush_anon_page, aliasing caches and all that again Russell King
2006-12-21 15:53 ` Miklos Szeredi
2006-12-21 16:57 ` Russell King
2006-12-21 17:51 ` Miklos Szeredi
2006-12-21 21:04 ` Jan Engelhardt
2006-12-21 21:30 ` Miklos Szeredi
2007-01-01 15:04 ` James Bottomley
2006-12-21 17:17 ` Russell King
2006-12-21 17:55 ` Miklos Szeredi
2006-12-21 18:11 ` Russell King
2006-12-21 18:30 ` Miklos Szeredi
2006-12-21 18:55 ` Russell King
2006-12-21 19:05 ` Miklos Szeredi
2006-12-21 23:51 ` Randolph Chung [this message]
2006-12-22 8:43 ` Russell King
2006-12-22 14:45 ` Randolph Chung
2006-12-30 16:39 ` Russell King
2006-12-30 16:50 ` Russell King
2006-12-30 18:26 ` Linus Torvalds
2006-12-30 22:46 ` Russell King
2006-12-31 5:23 ` David Miller
2006-12-31 9:10 ` Miklos Szeredi
2006-12-31 9:45 ` David Miller
2006-12-31 9:23 ` Russell King
2006-12-31 9:27 ` Arjan van de Ven
2006-12-31 9:47 ` David Miller
2006-12-31 10:00 ` Russell King
2006-12-31 10:04 ` David Miller
2006-12-31 12:24 ` Miklos Szeredi
2006-12-31 17:37 ` Russell King
2007-01-01 22:15 ` Miklos Szeredi
2007-01-01 23:45 ` Russell King
2007-01-02 19:40 ` Dan Williams
2007-01-02 22:53 ` James Bottomley
2007-01-02 23:19 ` David Miller
2007-01-02 23:34 ` James Bottomley
2007-01-03 0:20 ` David Miller
2007-01-03 14:16 ` Russell King
2007-01-03 15:00 ` James Bottomley
2007-01-03 15:09 ` Russell King
2007-01-07 16:09 ` James Bottomley
2007-01-07 16:30 ` Russell King
2006-12-31 20:40 ` David Miller
2006-12-31 20:58 ` Linus Torvalds
2006-12-31 21:12 ` David Miller
2007-01-01 16:44 ` James Bottomley
2007-01-01 23:04 ` David Miller
2007-01-01 23:23 ` James Bottomley
[not found] ` <1167669252.5302.57.camel@mulgrave.il.steeleye.com>
2007-01-01 23:01 ` David Miller
2007-01-01 23:17 ` Russell King
2006-12-31 9:55 ` Russell King
2006-12-31 9:46 ` David Miller
2007-01-01 14:35 ` James Bottomley
2007-01-01 16:21 ` Russell King
2006-12-30 18:21 ` Linus Torvalds
2006-12-21 16:29 ` Arjan van de Ven
2006-12-21 17:35 ` Russell King
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