Messages in this thread |  | | Date | Tue, 6 Feb 2001 18:18:08 +0000 | From | "Stephen C. Tweedie" <> | Subject | Re: sync & asyck i/o |
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Hi,
On Tue, Feb 06, 2001 at 05:54:41PM +0000, David Woodhouse wrote: > > sct@redhat.com said: > > Linux will obey that if it possibly can: only in cases where the > > hardware is actively lying about when the data has hit disk will the > > guarantee break down. > > Do we attempt to ask SCSI disks nicely to flush their write caches in this > situation? cf. http://www.danbbs.dk/~dino/SCSI/SCSI2-09.html#9.2.18
No, we simply omit to instruct them to enable write-back caching. Linux assumes that the WCE (write cache enable) bit in a disk's caching mode page is zero.
--Stephen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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