From: David Woodhouse <dwmw2@infradead.org>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Roman Zippel <zippel@linux-m68k.org>,
David Howells <dhowells@redhat.com>,
alan@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: manipulating sigmask from filesystems and drivers
Date: Thu, 01 Aug 2002 23:29:31 +0100 [thread overview]
Message-ID: <11294.1028240971@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.33.0208011430450.1647-100000@penguin.transmeta.com>
torvalds@transmeta.com said:
> Any regular file IO is supposed to give you the full result.
read(2) is permitted to return -EINTR. Granted, we shouldn't allow it to be
interrupted and return a partial read after the point we start to
copy_to_user(), but before then it's fair game.
Regular file I/O through the page cache is inherently restartable, anyway,
as long as you're careful about fpos.
There are better examples where you really can't have a cleanup path without
severe pain, even using ERESTARTNOINTR, and I was only joking about removing
TASK_UNINTERRUPTIBLE _entirely_ -- but the point remains that reducing its
usage would be nice.
--
dwmw2
next prev parent reply other threads:[~2002-08-01 22:26 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-31 11:52 manipulating sigmask from filesystems and drivers David Howells
2002-07-31 11:58 ` Alan Cox
2002-08-01 19:09 ` Linus Torvalds
2002-08-01 20:10 ` David Woodhouse
2002-08-01 20:21 ` Linus Torvalds
2002-08-01 20:47 ` Roman Zippel
2002-08-01 20:51 ` Linus Torvalds
2002-08-01 21:15 ` Roman Zippel
2002-08-01 21:42 ` Linus Torvalds
2002-08-01 22:29 ` David Woodhouse [this message]
2002-08-01 22:40 ` Linus Torvalds
2002-08-01 22:50 ` David Woodhouse
2002-08-02 15:59 ` yodaiken
2002-08-01 22:35 ` Roman Zippel
2002-08-01 23:30 ` Linus Torvalds
2002-08-02 0:31 ` Olivier Galibert
2002-08-02 8:00 ` Kai Henningsen
2002-08-02 10:02 ` Roman Zippel
2002-08-02 12:38 ` Ryan Anderson
2002-08-02 15:39 ` Linus Torvalds
2002-08-02 16:00 ` Benjamin LaHaise
2002-08-02 16:27 ` Linus Torvalds
2002-08-02 17:13 ` Jamie Lokier
2002-08-02 17:29 ` Linus Torvalds
2002-08-02 17:57 ` Trond Myklebust
2002-08-02 18:10 ` Linus Torvalds
2002-08-02 17:33 ` Oliver Neukum
2002-08-03 18:27 ` David Woodhouse
2002-10-17 8:32 ` David Woodhouse
2002-08-02 19:27 ` Roman Zippel
2002-08-02 7:31 ` Giuliano Pochini
[not found] ` <mailman.1028232841.11555.linux-kernel2news@redhat.com>
2002-08-01 23:37 ` Pete Zaitcev
2002-08-01 23:46 ` David Woodhouse
[not found] <0C01A29FBAE24448A792F5C68F5EA47D2D3E2B@nasdaq.ms.ensim.com>
2002-08-02 17:57 ` Paul Menage
2002-08-02 23:25 ` Ryan Anderson
2002-08-02 23:30 ` Paul Menage
-- strict thread matches above, loose matches on Subject: below --
2002-08-02 18:24 Jesse Pollard
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