H. Peter Anvin wrote:
> Followup to: <11640000.1050332688@[10.10.2.4]> By author: "Martin J.
> Bligh" <mbligh@aracnet.com> In newsgroup: linux.dev.kernel
>
>>> Martin, something which was not mentioned last week (I've just checked).
>>>
>>> It's OK if we never write to disk unless explicitely told, but will we
>>> writeback when we munmap?
> 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.
Chris
-- Chris Friesen | MailStop: 043/33/F10 Nortel Networks | work: (613) 765-0557 3500 Carling Avenue | fax: (613) 765-2986 Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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