On 16-04-13 01:30 PM, Darrick J. Wong wrote:
On Wed, Apr 13, 2016 at 09:51:04AM -0700, James Bottomley wrote:
On Wed, 2016-04-13 at 09:29 -0700, Bart Van Assche wrote:
On 04/13/2016 09:21 AM, Martin K. Petersen wrote:
From a filesystem/ioctl perspective, BLKDISCARD is a hint. We
should not be
On Wed, Apr 13, 2016 at 09:51:04AM -0700, James Bottomley wrote:
> On Wed, 2016-04-13 at 09:29 -0700, Bart Van Assche wrote:
> > On 04/13/2016 09:21 AM, Martin K. Petersen wrote:
> > > From a filesystem/ioctl perspective, BLKDISCARD is a hint. We
> > > should not be
> > > rounding off or aligning a
> "Bart" == Bart Van Assche writes:
Bart> And if so, how should this code behave and if sector and/or
Bart> nr_sectors is not a multiple of sdp->sector_size? As one can see
Bart> the above code rounds down sector and nr_sectors while converting
Bart> from sectors to logical blocks. This means
On 04/13/2016 09:43 AM, Martin K. Petersen wrote:
"Bart" == Bart Van Assche writes:
Bart> Today if a BLKDISCARD ioctl passes a non-aligned start and/or end
Bart> sector to the kernel then the block layer will submit invalid
Bart> (non-aligned) REQ_DISCARD requests to the block driver the ioctl
On Wed, 2016-04-13 at 09:29 -0700, Bart Van Assche wrote:
> On 04/13/2016 09:21 AM, Martin K. Petersen wrote:
> > From a filesystem/ioctl perspective, BLKDISCARD is a hint. We
> > should not be
> > rounding off or aligning anything.
>
> Hello Martin,
>
> Today if a BLKDISCARD ioctl passes a non-a
> "Bart" == Bart Van Assche writes:
Bart> Today if a BLKDISCARD ioctl passes a non-aligned start and/or end
Bart> sector to the kernel then the block layer will submit invalid
Bart> (non-aligned) REQ_DISCARD requests to the block driver the ioctl
Bart> applies to.
I do not know what you mean
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