On Fri, Nov 07, 2014 at 12:08:12AM -0500, Martin K. Petersen wrote:
> if (ata_id_has_trim(args->id)) {
> - rbuf[14] |= 0x80; /* TPE */
> + rbuf[14] |= 0x80; /* LBPME */
>
> - if (ata_id_has_zero_after_trim(args->id))
> - rbuf[14] |= 0x40; /* TPRZ */
> + if (ata_id_has_zero_after_trim(args->id) &&
> + dev->horkage & ATA_HORKAGE_ZERO_AFTER_TRIM) {
> + ata_dev_warn(dev, "Enabling discard_zeroes_data\n");
I think this should _info, not _warn.
Otherwise looks good to me,
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
It would be nice if there was a way to trigger the flag from userspace,
so that we don't need to rebuild the kernel to add a whitelist entry.
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