A few updates to the thin provisioning bits aimed at 2.6.33:
- Block layer support for reporting whether reading previously
discarded blocks returns zeroes or not. Jens, this applies on
top of the patch that you have already queued.
- Updated SCSI disk thin provisioning support:
- Reports TPRZ via the new block layer flag
- Moved some of the discard detection to read_capacity_16 to
accommodate TP devices that don't support Unmap and the
block limits VPD
James, this replaces my existing post-merge sd patch.
- libata:
- Translate DRAT and ZRAT to TPRZ (zeroed blocks after trim)
- Report the maximum discard sectors in the block limits VPD
- Fix a couple of problems in ata_set_lba_range_entries() that
caused us to issue garbled trims
Interested parties can grab the tp branch from:
git://git.kernel.org/pub/scm/linux/kernel/git/mkp/linux-2.6-mkp.git
--
Martin K. Petersen Oracle Linux Engineering
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