From: "H. Peter Anvin" <hpa@zytor.com>
To: Chris Friesen <cfriesen@nortelnetworks.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Memory mapped files question
Date: Mon, 14 Apr 2003 14:12:10 -0700 [thread overview]
Message-ID: <3E9B242A.9080201@zytor.com> (raw)
In-Reply-To: <3E9B1C8E.5030707@nortelnetworks.com>
Chris Friesen wrote:
>
>> munmap() and fsync() or msync() will flush it to disk; there is no reason
>> munmap() should unless perhaps the file was opened O_SYNC.
>
> Wait a minute. Shouldn't a file opened O_SYNC flush the writes as they
> happen,
> removing the requirement for any explicit syncing? If it doesn't there
> are some very broken apps around.
>
Not for mmap().
-hpa
next prev parent reply other threads:[~2003-04-14 21:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-14 3:57 Memory mapped files question Bryan Shumsky
2003-04-14 14:36 ` Martin J. Bligh
2003-04-14 15:07 ` Antonio Vargas
2003-04-14 15:04 ` Martin J. Bligh
2003-04-14 18:07 ` H. Peter Anvin
2003-04-14 20:39 ` Chris Friesen
2003-04-14 21:12 ` H. Peter Anvin [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-04-14 19:31 Perez-Gonzalez, Inaky
2003-04-14 19:42 ` Bryan Shumsky
2003-04-14 19:53 ` Alan Cox
2003-04-14 21:24 ` Chris Friesen
2003-04-14 20:13 ` Richard B. Johnson
2003-04-14 20:27 ` Frank van Maarseveen
2003-04-14 20:52 ` Richard B. Johnson
2003-04-14 22:08 ` H. Peter Anvin
2003-04-15 4:56 ` Jamie Lokier
2003-04-15 5:30 ` H. Peter Anvin
2003-04-14 19:50 Perez-Gonzalez, Inaky
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