Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756014AbaLHQQS (ORCPT ); Mon, 8 Dec 2014 11:16:18 -0500 Received: from mx1.redhat.com ([209.132.183.28]:52617 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755908AbaLHQQO (ORCPT ); Mon, 8 Dec 2014 11:16:14 -0500 Date: Mon, 8 Dec 2014 11:16:01 -0500 From: Mike Snitzer To: Linus Torvalds Cc: dm-devel@redhat.com, linux-kernel@vger.kernel.org, Alasdair G Kergon , Joe Thornber , Mikulas Patocka , Dan Carpenter , Eric Dumazet , "Darrick J. Wong" , Hannes Reinecke , Milan Broz , Pranith Kumar Subject: [git pull] device mapper changes for 3.19 Message-ID: <20141208161600.GA28316@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Linus, The following changes since commit 9b460d3699324d570a4d4161c3741431887f102f: dm btree: fix a recursion depth bug in btree walking code (2014-11-10 15:23:58 -0500) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/dm-3.19-changes for you to fetch changes up to 1a71d6ffe18c0d0f03fc8531949cc8ed41d702ee: dm crypt: use memzero_explicit for on-stack buffer (2014-12-02 10:25:07 -0500) Please pull, thanks. Mike ---------------------------------------------------------------- - Significant DM thin-provisioning performance improvements to meet performance requirements that were requested by the Gluster distributed filesystem. Specifically, dm-thinp now takes care to aggregate IO that will be issued to the same thinp block before issuing IO to the underlying devices. This really helps improve performance on HW RAID6 devices that have a writeback cache because it avoids RMW in the HW RAID controller. - Some stable fixes: fix leak in DM bufio if integrity profiles were enabled, use memzero_explicit in DM crypt to avoid any potential for information leak, and a DM cache fix to properly mark a cache block dirty if it was promoted to the cache via the overwrite optimization. - A few simple DM persistent data library fixes - DM cache multiqueue policy block promotion improvements. - DM cache discard improvements that take advantage of range (multiblock) discard support in the DM bio-prison. This allows for much more efficient bulk discard processing (e.g. when mkfs.xfs discards the entire device). - Some small optimizations in DM core and RCU deference cleanups - DM core changes to suspend/resume code to introduce the new internal suspend/resume interface that the DM thin-pool target now uses to suspend/resume active thin devices when the thin-pool must suspend/resume. This avoids forcing userspace to track all active thin volumes in a thin-pool when the thin-pool is suspended for the purposes of metadata or data space resize. ---------------------------------------------------------------- Dan Carpenter (1): dm space map metadata: fix sm_bootstrap_get_nr_blocks() Darrick J. Wong (1): dm bufio: fix memleak when using a dm_buffer's inline bio Eric Dumazet (1): dm: use rcu_dereference_protected instead of rcu_dereference Hannes Reinecke (1): dm: do not call dm_sync_table() when creating new devices Joe Thornber (27): dm bufio: switch from a huge hash table to an rbtree dm bufio: evict buffers that are past the max age but retain some buffers dm bio prison: switch to using a red black tree dm thin metadata: change dm_thin_find_block to allow blocking, but not issuing, IO dm transaction manager: add support for prefetching blocks of metadata dm thin: prefetch missing metadata pages dm thin: throttle incoming IO dm thin: performance improvement to discard processing dm thin: defer whole cells rather than individual bios dm thin: remap the bios in a cell immediately dm thin: direct dispatch when breaking sharing dm thin: sort the deferred cells dm cache policy mq: tweak algorithm that decides when to promote a block dm bio prison: introduce support for locking ranges of blocks dm cache: revert "remove remainder of distinct discard block size" dm cache: revert "prevent corruption caused by discard_block_size > cache_block_size" dm cache: improve discard support dm cache: emit a warning message if there are a lot of cache blocks dm array: if resizing the array is a noop set the new root to the old one dm cache: fix some issues with the new discard range support dm cache: when reloading a discard bitset allow for a different discard block size dm cache: fix a harmless race when working out if a block is discarded dm cache: discard block size must be a multiple of cache block size dm cache: only use overwrite optimisation for promotion when in writeback mode dm cache: dirty flag was mistakenly being cleared when promoting via overwrite dm cache: fix spurious cell_defer when dealing with partial block at end of device dm space map metadata: fix sm_bootstrap_get_count() Mike Snitzer (14): dm thin: adjust max_sectors_kb based on thinp blocksize dm: improve documentation and code clarity in dm_merge_bvec dm thin: implement thin_merge dm thin: factor out remap_and_issue_overwrite dm thin: optimize retry_bios_on_resume dm thin: refactor requeue_io to eliminate spinlock bouncing dm cache policy mq: simplify ability to promote sequential IO to the cache dm thin: remove stale 'trim' message in block comment above pool_message dm: return earlier from dm_blk_ioctl if target doesn't implement .ioctl dm: add presuspend_undo hook to target_type dm thin: do not allow thin device activation while pool is suspended dm: enhance internal suspend and resume interface dm thin: suspend/resume active thin devices when reloading thin-pool dm thin: fix pool_io_hints to avoid looking at max_hw_sectors Mikulas Patocka (1): dm thin: fix a race in thin_dtr Milan Broz (1): dm crypt: use memzero_explicit for on-stack buffer Pranith Kumar (2): dm: Use rcu_dereference() for accessing rcu pointer dm: sparse: Annotate field with __rcu for checking Documentation/device-mapper/cache-policies.txt | 24 +- drivers/md/dm-bio-prison.c | 186 +++-- drivers/md/dm-bio-prison.h | 28 +- drivers/md/dm-bufio.c | 226 +++--- drivers/md/dm-cache-block-types.h | 11 + drivers/md/dm-cache-metadata.c | 34 +- drivers/md/dm-cache-metadata.h | 6 +- drivers/md/dm-cache-policy-mq.c | 82 ++- drivers/md/dm-cache-target.c | 378 +++++++--- drivers/md/dm-crypt.c | 2 +- drivers/md/dm-ioctl.c | 5 +- drivers/md/dm-stats.c | 2 +- drivers/md/dm-table.c | 36 +- drivers/md/dm-thin-metadata.c | 35 +- drivers/md/dm-thin-metadata.h | 9 +- drivers/md/dm-thin.c | 760 ++++++++++++++++----- drivers/md/dm.c | 273 ++++++-- drivers/md/dm.h | 10 + drivers/md/persistent-data/dm-array.c | 4 +- drivers/md/persistent-data/dm-space-map-metadata.c | 8 +- .../md/persistent-data/dm-transaction-manager.c | 77 ++- .../md/persistent-data/dm-transaction-manager.h | 7 + include/linux/device-mapper.h | 2 + include/uapi/linux/dm-ioctl.h | 9 +- 24 files changed, 1634 insertions(+), 580 deletions(-) -- 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/