Messages in this thread | | | Date | Thu, 16 Nov 2006 12:15:58 +0200 | From | "Yakov Lerner" <> | Subject | Re: locking sectors of raw disk (raw read-write test of mounted disk) |
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On 11/15/06, Phillip Susi <psusi@cfl.rr.com> wrote: > No, you can not tamper with the underlying data while the kernel has it > mounted. I don't want to tamper wuith data. I want to raw write back exacty same raw data that I read in. I only want to make sure that kernel doesn't write modified data between in between my read-write pair.
Yakov
> Yakov Lerner wrote: > > I'd like to make read-write test of the raw disk, and disk has > > mounted partitions. Is it possible to lock range of sectors > > of the raw device so that any kernel code that wants to write > > to this range will sleep ? (so that test > > { lock range; read /dev/hda->buf; write buf->/dev/hda; unlock } > > won't corrupt the filesysyem ?) > > > > Thanks > > Yakov > > - 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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