Re: [PATCH] 2.4.x write barriers (updated for ext3)

Jens Axboe
2002-03-12T06:58:50Z

On Mon, Mar 11 2002, Kurt Garloff wrote:
> disks (DASDs), Write-Once and Optical Memory devices. (Funny enough, the
> SCSI spec also lists SYNCHRONIZE_CACHE for CD-Rom devices

Hey, I use SYNCHRONIZE_CACHE in the packet writing stuff for CD-ROM's
all the time :-). Not all are read-only. In fact, Peter Osterlund
discovered that if you have pending writes on the CD-ROM it's a really
good idea to sync the cache prior to starting reads or they have a nasty
tendency to time out.

--
Jens Axboe