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Message-ID: <Pine.LNX.4.64.0912181140370.26094@cobra.newdream.net>
Date: Fri, 18 Dec 2009 12:54:02 -0800 (PST)
From: Sage Weil <sage@...dream.net>
To: torvalds@...ux-foundation.org
cc: akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
linux-fsdevel@...r.kernel.org
Subject: Re: [GIT PULL] Ceph distributed file system client for 2.6.33
Hi Linus,
I would still like to see ceph merged for 2.6.33. It's certainly not
production ready, but it would be greatly beneficial to be in mainline for
the same reasons other file systems like btrfs and exofs were merged
early.
Is there more information you'd like to see from me before pulling? If
there was a reason you decided not to pull, please let me know.
Thanks-
sage
On Mon, 7 Dec 2009, Sage Weil wrote:
> Hi Linus,
>
> Please pull from 'master' branch of
>
> git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git master
>
> to receive the Ceph distributed file system client. The fs has made a
> half dozen rounds on linux-fsdevel, and has been in linux-next for the
> last month or so. Although review has been sparse, Andrew said the code
> looks reasonable for 2.6.33.
>
> The git tree includes the full patchset posted in October and incremental
> changes since then. I've tried to cram in all the anticipated protocol
> changes, but the file system is still strictly EXPERIMENTAL and is marked
> as such. Merging now will attract new eyes and make it easier to test and
> evaluate the system (both the client and server side).
>
> Basic features include:
>
> * High availability and reliability. No single points of failure.
> * Strong data and metadata consistency between clients
> * N-way replication of all data across storage nodes
> * Seamless scaling from 1 to potentially many thousands of nodes
> * Fast recovery from node failures
> * Automatic rebalancing of data on node addition/removal
> * Easy deployment: most FS components are userspace daemons
>
> More info on Ceph at
>
> http://ceph.newdream.net/
>
> Thanks-
> sage
>
>
> Julia Lawall (2):
> fs/ceph: introduce missing kfree
> fs/ceph: Move a dereference below a NULL test
>
> Noah Watkins (3):
> ceph: replace list_entry with container_of
> ceph: remove redundant use of le32_to_cpu
> ceph: fix intra strip unit length calculation
>
> Sage Weil (93):
> ceph: documentation
> ceph: on-wire types
> ceph: client types
> ceph: ref counted buffer
> ceph: super.c
> ceph: inode operations
> ceph: directory operations
> ceph: file operations
> ceph: address space operations
> ceph: MDS client
> ceph: OSD client
> ceph: CRUSH mapping algorithm
> ceph: monitor client
> ceph: capability management
> ceph: snapshot management
> ceph: messenger library
> ceph: message pools
> ceph: nfs re-export support
> ceph: ioctls
> ceph: debugfs
> ceph: Kconfig, Makefile
> ceph: document shared files in README
> ceph: show meaningful version on module load
> ceph: include preferred_osd in file layout virtual xattr
> ceph: gracefully avoid empty crush buckets
> ceph: fix mdsmap decoding when multiple mds's are present
> ceph: renew mon subscription before it expires
> ceph: fix osd request submission race
> ceph: revoke osd request message on request completion
> ceph: fail gracefully on corrupt osdmap (bad pg_temp mapping)
> ceph: reset osd session on fault, not peer_reset
> ceph: cancel osd requests before resending them
> ceph: update to mon client protocol v15
> ceph: add file layout validation
> ceph: ignore trailing data in monamp
> ceph: remove unused CEPH_MSG_{OSD,MDS}_GETMAP
> ceph: add version field to message header
> ceph: convert encode/decode macros to inlines
> ceph: initialize sb->s_bdi, bdi_unregister after kill_anon_super
> ceph: move generic flushing code into helper
> ceph: flush dirty caps via the cap_dirty list
> ceph: correct subscribe_ack msgpool payload size
> ceph: warn on allocation from msgpool with larger front_len
> ceph: move dirty caps code around
> ceph: enable readahead
> ceph: include preferred osd in placement seed
> ceph: v0.17 of client
> ceph: move directory size logic to ceph_getattr
> ceph: remove small mon addr limit; use CEPH_MAX_MON where appropriate
> ceph: reduce parse_mount_args stack usage
> ceph: silence uninitialized variable warning
> ceph: fix, clean up string mount arg parsing
> ceph: allocate and parse mount args before client instance
> ceph: correct comment to match striping calculation
> ceph: fix object striping calculation for non-default striping schemes
> ceph: fix uninitialized err variable
> crush: always return a value from crush_bucket_choose
> ceph: init/destroy bdi in client create/destroy helpers
> ceph: use fixed endian encoding for ceph_entity_addr
> ceph: fix endian conversions for ceph_pg
> ceph: fix sparse endian warning
> ceph: convert port endianness
> ceph: clean up 'osd%d down' console msg
> ceph: make CRUSH hash functions non-inline
> ceph: use strong hash function for mapping objects to pgs
> ceph: make object hash a pg_pool property
> ceph: make CRUSH hash function a bucket property
> ceph: do not confuse stale and dead (unreconnected) caps
> ceph: separate banner and connect during handshake into distinct stages
> ceph: remove recon_gen logic
> ceph: exclude snapdir from readdir results
> ceph: initialize i_size/i_rbytes on snapdir
> ceph: pr_info when mds reconnect completes
> ceph: build cleanly without CONFIG_DEBUG_FS
> ceph: fix page invalidation deadlock
> ceph: remove bad calls to ceph_con_shutdown
> ceph: remove unnecessary ceph_con_shutdown
> ceph: handle errors during osd client init
> ceph: negotiate authentication protocol; implement AUTH_NONE protocol
> ceph: move mempool creation to ceph_create_client
> ceph: small cleanup in hash function
> ceph: fix debugfs entry, simplify fsid checks
> ceph: decode updated mdsmap format
> ceph: reset requested max_size after mds reconnect
> ceph: reset msgr backoff during open, not after successful handshake
> ceph: remove dead code
> ceph: remove useless IS_ERR checks
> ceph: plug leak of request_mutex
> ceph: whitespace cleanup
> ceph: hide /.ceph from readdir results
> ceph: allow preferred osd to be get/set via layout ioctl
> ceph: update MAINTAINERS entry with correct git URL
> ceph: mark v0.18 release
>
> Yehuda Sadeh (1):
> ceph: mount fails immediately on error
>
> ----
> Documentation/filesystems/ceph.txt | 139 ++
> Documentation/ioctl/ioctl-number.txt | 1 +
> MAINTAINERS | 9 +
> fs/Kconfig | 1 +
> fs/Makefile | 1 +
> fs/ceph/Kconfig | 26 +
> fs/ceph/Makefile | 37 +
> fs/ceph/README | 20 +
> fs/ceph/addr.c | 1115 +++++++++++++
> fs/ceph/auth.c | 225 +++
> fs/ceph/auth.h | 77 +
> fs/ceph/auth_none.c | 120 ++
> fs/ceph/auth_none.h | 28 +
> fs/ceph/buffer.c | 34 +
> fs/ceph/buffer.h | 55 +
> fs/ceph/caps.c | 2863 ++++++++++++++++++++++++++++++++
> fs/ceph/ceph_debug.h | 37 +
> fs/ceph/ceph_frag.c | 21 +
> fs/ceph/ceph_frag.h | 109 ++
> fs/ceph/ceph_fs.c | 74 +
> fs/ceph/ceph_fs.h | 648 ++++++++
> fs/ceph/ceph_hash.c | 118 ++
> fs/ceph/ceph_hash.h | 13 +
> fs/ceph/ceph_strings.c | 176 ++
> fs/ceph/crush/crush.c | 151 ++
> fs/ceph/crush/crush.h | 180 ++
> fs/ceph/crush/hash.c | 149 ++
> fs/ceph/crush/hash.h | 17 +
> fs/ceph/crush/mapper.c | 596 +++++++
> fs/ceph/crush/mapper.h | 20 +
> fs/ceph/debugfs.c | 450 +++++
> fs/ceph/decode.h | 159 ++
> fs/ceph/dir.c | 1222 ++++++++++++++
> fs/ceph/export.c | 223 +++
> fs/ceph/file.c | 904 +++++++++++
> fs/ceph/inode.c | 1624 +++++++++++++++++++
> fs/ceph/ioctl.c | 160 ++
> fs/ceph/ioctl.h | 40 +
> fs/ceph/mds_client.c | 2976 ++++++++++++++++++++++++++++++++++
> fs/ceph/mds_client.h | 327 ++++
> fs/ceph/mdsmap.c | 170 ++
> fs/ceph/mdsmap.h | 54 +
> fs/ceph/messenger.c | 2103 ++++++++++++++++++++++++
> fs/ceph/messenger.h | 253 +++
> fs/ceph/mon_client.c | 751 +++++++++
> fs/ceph/mon_client.h | 115 ++
> fs/ceph/msgpool.c | 181 ++
> fs/ceph/msgpool.h | 27 +
> fs/ceph/msgr.h | 167 ++
> fs/ceph/osd_client.c | 1364 ++++++++++++++++
> fs/ceph/osd_client.h | 150 ++
> fs/ceph/osdmap.c | 916 +++++++++++
> fs/ceph/osdmap.h | 124 ++
> fs/ceph/rados.h | 370 +++++
> fs/ceph/snap.c | 887 ++++++++++
> fs/ceph/super.c | 984 +++++++++++
> fs/ceph/super.h | 895 ++++++++++
> fs/ceph/types.h | 29 +
> fs/ceph/xattr.c | 842 ++++++++++
> 59 files changed, 25527 insertions(+), 0 deletions(-)
> --
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