Messages in this thread | | | Date | Wed, 14 Jan 2009 09:34:55 -0500 | From | Theodore Tso <> | Subject | Re: ext2 + -osync: not as easy as it seems |
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On Wed, Jan 14, 2009 at 03:08:04PM +0100, Jens Axboe wrote: > > It also guarentees that when you get a completion for that barrier > write, it's on safe storage. Think of it as a flush-write-flush > operation, in the presence of write back caching. >
Is that true even if the barrier isn't attached to a write operation, i.e., when using
blkdev_issue_flush(sb, NULL);
?
- Ted
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