> -----Original Message----- > From: Christoph Hellwig [mailto:h...@infradead.org] > Sent: Wednesday, July 9, 2014 1:43 AM > To: KY Srinivasan > Cc: linux-kernel@vger.kernel.org; de...@linuxdriverproject.org; > oher...@suse.com; jbottom...@parallels.com; jasow...@redhat.com; > a...@canonical.com; linux-s...@vger.kernel.org; sta...@vger.kernel.org > Subject: Re: [PATCH 4/8] Drivers: scsi: storvsc: Filter WRITE_SAME_16 > > On Tue, Jul 08, 2014 at 05:46:48PM -0700, K. Y. Srinivasan wrote: > > Host does not handle WRITE_SAME_16; filter this command out. This > > patch is required to handle large devices (greater than 2 TB disks). > > Storvsc already sets the no_write_same flag, where is the command coming > from?
In spite of this flag, I see WRITE_SAME_16 being issued when I format a device bigger than 2 TB; I tried both xfs and ext4. Windows hosts currently do not handle unsupported commands correctly - The information returned is not sufficient to effect recovery in the Linux guest. While this may be addressed in future hosts, this patch fixes the problem. K. Y -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
