Ceph is a distributed object, block, and file storage platform
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Greg Farnum 6bd8781dda mds: use inode_t::layout for dir layout policy
This cherry-pick is going in the reverse direction of normal. That's
because this direction makes for the minimal change -- this patchset
is required to fix the loss of directory layouts we were previously
seeing, but fixing it requires changing the encoding versions. So we
wrote it on top of Bobtail and let it update the struct_v's as they existed
then. Note that we here change a few encoding versions in ways which are
NOT COMPATIBLE with previous development code (but not any releases). In
particular, development code introduced and this removes the
file_layout_policy_t, and some of the CInode and EMetaBlob encoding
struct_v values were used in development code to mean one thing, but
mean something different due to the Bobtail patch.

Remove the default_file_layout struct, which was just a ceph_file_layout,
and store it in the inode_t.  Rip out all the annoying code that put this
on the heap.

To aid in this usage, add a clear_layout() function to inode_t.

Signed-off-by: Sage Weil <sage.weil@dreamhost.com>
Signed-off-by: Greg Farnum <greg@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
(cherry picked from commit 36ed407e0f)
Conflicts:

	src/mds/CInode.cc
	src/mds/CInode.h
	src/mds/MDCache.cc
	src/mds/Server.cc
	src/mds/events/EMetaBlob.h
Cherry-pick-
Reviewed-by: Sage Weil <sage@inktank.com>
2013-02-21 13:44:01 -08:00
admin
ceph-object-corpus@7f23ee1127
debian Merge branch 'next' 2013-02-19 14:53:54 -08:00
doc doc/release-notes: v0.57 2013-02-19 13:50:18 -08:00
fusetrace fusetrace_ll.cc: remove twice included sys/time.h 2012-11-28 08:25:32 -08:00
keys keys: renew autobuild.asc key 2013-02-07 22:31:40 -08:00
m4 ac_prog_javah.m4: Use AC_CANONICAL_TARGET instead of AC_CANONICAL_SYSTEM. 2013-01-14 14:11:54 -08:00
man .gitignore: add local ones for ocf and man 2013-02-11 09:08:01 -08:00
qa mds: parse ceph.*.layout vxattr key/value content 2013-02-21 13:44:01 -08:00
src mds: use inode_t::layout for dir layout policy 2013-02-21 13:44:01 -08:00
udev udev: trigger on dmcrypted osd partitions 2013-02-15 14:18:34 -08:00
wireshark wireshark/ceph/packet-ceph.c: fix some issues from cppcheck 2013-02-14 10:27:40 -08:00
.gitignore .gitignore: cleanup and sort entries 2013-02-10 20:52:21 +01:00
.gitmodules
AUTHORS Relax Throttle::_reset_max conditions and associated unit tests 2013-02-05 20:06:04 +01:00
autogen.sh configure.ac: check for org.junit.rules.ExternalResource 2013-01-09 19:52:05 -08:00
ceph.spec.in Merge remote-tracking branch 'gh/wip-deploy' 2013-02-16 09:39:34 -08:00
ChangeLog
CodingStyle
configure.ac v0.57 2013-02-19 10:07:42 -08:00
COPYING Unit tests for chain_xattr.cc 2013-02-11 23:14:30 +01:00
COPYING-LGPL2.1
do_autogen.sh
Doxyfile
INSTALL
Makefile.am udev: trigger ceph-disk-activate directly from udev 2013-02-13 22:18:59 -08:00
NEWS
PendingReleaseNotes PendingReleaseNotes: pool removal cli changes 2013-01-23 18:50:57 -08:00
README Added libexpat dependency 2013-01-26 19:18:01 -02:00
RELEASE_CHECKLIST
SubmittingPatches

============================================
Ceph - a scalable distributed storage system
============================================

Please see http://ceph.com/ for current info.

Contributing Code
=================

Most of Ceph is licensed under the LGPL version 2.1.  Some
miscellaneous code is under BSD-style license or is public domain.
The documentation is licensed under Creative Commons
Attribution-ShareAlike (CC BY-SA).  There are a handful of headers
included here that are licensed under the GPL.  Please see the file
COPYING for a full inventory of licenses by file.

Code contributions must include a valid "Signed-off-by" acknowledging
the license for the modified or contributed file.  Please see the file
SubmittingPatches for details on what that means and on how to
generate and submit patches.

We do not require assignment of copyright to contribute code; code is
contributed under the terms of the applicable license.


Building Ceph
=============

To prepare the source tree after it has been git cloned,

	$ git submodule update --init

To build the server daemons, and FUSE client, execute the following:

	$ ./autogen.sh
	$ ./configure
	$ make

(Note that the FUSE client will only be built if libfuse is present.)

Dependencies
------------

The configure script will complain about any missing dependencies as
it goes.  You can also refer to debian/control or ceph.spec.in for the
package build dependencies on those platforms.  In many cases,
dependencies can be avoided with --with-foo or --without-bar switches.
For example,

$ ./configure --with-nss         # use libnss instead of libcrypto++
$ ./configure --without-radosgw  # do not build radosgw and avoid libfcgi-dev
$ ./configure --without-tcmalloc # avoid google-perftools dependency


Building packages
-----------------

You can build packages for Debian or Debian-derived (e.g., Ubuntu)
systems with

$ sudo apt-get dpkg-dev
$ dpkg-checkbuilddeps        # make sure we have all dependencies
$ dpkg-buildpackage

For RPM-based systems (Redhat, Suse, etc.),

$ rpmbuild


Building the Documentation
==========================

Prerequisites
-------------
To build the documentation, you must install the following:

- python-dev
- python-pip
- python-virualenv
- doxygen
- ditaa
- libxml2-dev
- libxslt-dev
- dot
- graphviz

For example:

	sudo apt-get install python-dev python-pip python-virualenv doxygen ditaa libxml2-dev libxslt-dev dot graphviz

Building the Documentation
--------------------------

To build the documentation, ensure that you are in the top-level `/ceph directory, and execute the build script. For example:

	$ admin/build-doc


Build Prerequisites
-------------------
To build the source code, you must install the following:

- automake
- autoconf
- automake
- gcc
- g++
- libboost-dev
- libedit-dev
- libssl-dev
- libtool
- libfcgi
- libfcgi-dev
- libfuse-dev
- linux-kernel-headers
- libcrypto++-dev
- libaio-dev
- libgoogle-perftools-dev
- libkeyutils-dev
- uuid-dev
- libatomic-ops-dev
- libboost-program-options-dev
- libboost-thread-dev
- libexpat1-dev


For example:

	$ apt-get install automake autoconf automake gcc g++ libboost-dev libedit-dev libssl-dev libtool libfcgi libfcgi-dev libfuse-dev linux-kernel-headers libcrypto++-dev libaio-dev libgoogle-perftools-dev libkeyutils-dev uuid-dev libatomic-ops-dev libboost-program-options-dev libboost-thread-dev libexpat1-dev