Merge commit 'refs/top-bases/linux-kernel-mem' into linux-kernel-mem
This commit is contained in:
Brian Behlendorf
commit
ea5ced8e55
44
ChangeLog
44
ChangeLog
|
|
@ -1,3 +1,47 @@
|
|||
2010-05-21 Brian Behlendorf <behlendorf1@llnl.gov>
|
||||
|
||||
* : Tag zfs-0.4.9 - Use 'git log --no-merges' for full change log.
|
||||
|
||||
* : Build system improvements:
|
||||
- Added support for the 'make -s' silent build option.
|
||||
- Allow zfs_config.h to be included by dependent packages.
|
||||
- Minor spec file updates.
|
||||
- Minor build system message updates.
|
||||
|
||||
* : Topic branch cleanup. Several old branches were removed and
|
||||
numerous hunks which were accidentaly commited to incorrect topic
|
||||
branches in the past were relocated to the correct topic branch.
|
||||
|
||||
* *.c, *.h, *.sh, AUTHORS, COPYING, COPYRIGHT, DISCLAIMER, README:
|
||||
Added standard header to source files which includes the copyright,
|
||||
license, and author information. Additionally, updated the listed
|
||||
top level files to the latest versions.
|
||||
|
||||
* cmd/zpool/zpool_vdev.c: Check all partitions with check_file()
|
||||
even when no libblkid is found. This oversight would result in
|
||||
ZFS not detecting existing filesystems on partitions.
|
||||
|
||||
* module/zfs/fm.c, module/zfs/zfs_fm, libzfs/libzfs_pool.c:
|
||||
Added zevents which are similar to Solaris FMA support. The
|
||||
existing FMA and sysevent call points in ZFS were unified in
|
||||
to a single event type and used to create a user space visible
|
||||
event notification system under Linux. The new 'zpool events'
|
||||
command can be used to show all recent ZFS events.
|
||||
|
||||
* module/zfs/spa.c, module/zfs/zil.c: Suppress large memory
|
||||
allocation warnings for two particular kmem_alloc()'s. For
|
||||
now we can live with them as is but long term a way should be
|
||||
found to perform small allocations or use the vmem based slab.
|
||||
|
||||
* module/zfs/zvol.c: Recreate volume and snapshot /dev links during
|
||||
module load. Links in /dev for volumes/snapshots were only being
|
||||
created at volume/snapshot creation time. Those links are now also
|
||||
created dynamically at module load time based on the spa config.
|
||||
|
||||
* module/zfs/zvol.c, module/zfs/include/sys/blkdev.h: The handler
|
||||
zvol_request() should use the unlocked version of blk_end_request()
|
||||
to avoid a deadlock in the ZVOL.
|
||||
|
||||
2010-03-11 Brian Behlendorf <behlendorf1@llnl.gov>
|
||||
|
||||
* : Tag zfs-0.4.8 - Use 'git log --no-merges' for full change log.
|
||||
|
|
|
|||
2
META
2
META
|
|
@ -1,7 +1,7 @@
|
|||
Meta: 1
|
||||
Name: zfs
|
||||
Branch: 1.0
|
||||
Version: 0.4.8
|
||||
Version: 0.4.9
|
||||
Release: 1
|
||||
Release-Tags: relext
|
||||
License: CDDL
|
||||
|
|
|
|||
115
README
115
README
|
|
@ -1,40 +1,95 @@
|
|||
============================ ZFS KERNEL BUILD ============================
|
||||
============================ ZFS QUICK START ============================
|
||||
|
||||
1) Build the SPL (Solaris Porting Layer) module which is designed to
|
||||
provide many Solaris APIs in the Linux kernel which are needed
|
||||
by ZFS. To build the SPL:
|
||||
1) Build the SPL (Solaris Porting Layer) and install it. This package
|
||||
provides several Solaris APIs used by ZFS and is a required dependency.
|
||||
Before building ZFS build this package and install the resulting rpms.
|
||||
|
||||
tar -xzf spl-x.y.z.tgz
|
||||
cd spl-x.y.z
|
||||
./configure --with-linux=<kernel src>
|
||||
make
|
||||
make check <as root>
|
||||
> tar -xzf spl-x.y.z.tgz
|
||||
> cd spl-x.y.z
|
||||
> ./configure --with-linux=<kernel src>
|
||||
> make
|
||||
> make rpm
|
||||
|
||||
2) Build ZFS, this port is based on build specified by the ZFS.RELEASE
|
||||
file. You will need to have both the kernel and SPL source available.
|
||||
To build ZFS for use as a Linux kernel module.
|
||||
> sudo rpm -Uvh *.<arch>.rpm
|
||||
Preparing... ########################################### [100%]
|
||||
1:spl ########################################### [ 33%]
|
||||
2:spl-modules-devel ########################################### [ 67%]
|
||||
3:spl-modules ########################################### [100%]
|
||||
|
||||
tar -xzf zfs-x.y.z.tgz
|
||||
cd zfs-x.y.z
|
||||
./configure --with-linux=<kernel src> \
|
||||
--with-spl=<spl src>
|
||||
make
|
||||
make check <as root>
|
||||
|
||||
============================ ZPIOS TEST SUITE ============================
|
||||
2) Build ZFS and install it. This package provides the native port of
|
||||
ZFS for Linux including all kernel modules and command line utilities.
|
||||
Note it is important that you have installed spl-module-devel package
|
||||
from step 1) before attempting to build ZFS.
|
||||
|
||||
3) Provided is an in-kernel test application called zpios which can be
|
||||
used to simulate a parallel IO load. It may be used as a stress
|
||||
or performance test for your configuration. To simplify testing
|
||||
scripts provided in the scripts/ directory which provide a few
|
||||
pre-built zpool configurations and zpios test cases. By default
|
||||
'make check' as root will run a simple test against several small
|
||||
loopback devices created in /tmp/.
|
||||
> tar -xzf zfs-x.y.z.tgz
|
||||
> cd zfs-x.y.z
|
||||
> ./configure --with-linux=<kernel src>
|
||||
> make
|
||||
> make rpm
|
||||
|
||||
> sudo rpm -Uvh *.<arch>.rpm
|
||||
Preparing... ########################################### [100%]
|
||||
1:zfs ########################################### [ 20%]
|
||||
2:zfs-test ########################################### [ 40%]
|
||||
3:zfs-modules-devel ########################################### [ 60%]
|
||||
4:zfs-modules ########################################### [ 80%]
|
||||
|
||||
|
||||
3) Enjoy ZFS on Linux! Currently only the ZVOL is fully functional
|
||||
but work on the ZPL is underway. Why is just having the ZVOL still
|
||||
useful you ask? Well here's an example of what you can do today using
|
||||
just the ZVOL:
|
||||
|
||||
> # Create the 'tank' zpool containing a raidz vdev spread over 4 devices.
|
||||
> zpool create tank raidz /dev/sdb /dev/sdc /dev/sdd /dev/sde
|
||||
> zpool list
|
||||
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
|
||||
tank 1.81T 132K 1.81T 0% ONLINE -
|
||||
|
||||
> # Create a 100G block device named 'fish' in the 'tank' zpool.
|
||||
> zfs create -V 100G tank/fish
|
||||
> zfs list
|
||||
NAME USED AVAIL REFER MOUNTPOINT
|
||||
tank 100G 1.24T 26.9K /tank
|
||||
tank/fish 100G 1.33T 23.9K -
|
||||
|
||||
> # Partition 'tank/fish' as if it were a normal block device.
|
||||
> sfdisk /dev/tank/fish << EOF
|
||||
0,
|
||||
EOF
|
||||
> sfdisk -l /dev/tank/fish
|
||||
|
||||
Disk /dev/tank/fish: 208050 cylinders, 16 heads, 63 sectors/track
|
||||
Units = cylinders of 516096 bytes, blocks of 1024 bytes, counting from 0
|
||||
|
||||
Device Boot Start End #cyls #blocks Id System
|
||||
/dev/tank/fish1 0+ 208049 208050- 104857199+ 83 Linux
|
||||
/dev/tank/fish2 0 - 0 0 0 Empty
|
||||
/dev/tank/fish3 0 - 0 0 0 Empty
|
||||
/dev/tank/fish4 0 - 0 0 0 Empty
|
||||
|
||||
> # Format the new /dev/tank/fish1 partition with ext2 and mount it.
|
||||
> mkfs.ext2 -q /dev/tank/fish1
|
||||
> mkdir -p /mnt/tank/fish1
|
||||
> mount /dev/tank/fish1 /mnt/tank/fish1
|
||||
> ls /mnt/tank/fish1
|
||||
lost+found
|
||||
|
||||
> # Take a snapshot of the pristine ext2 filesystem and mount it read-only.
|
||||
> zfs snapshot tank/fish@pristine
|
||||
> mkdir /mnt/tank/fish@pristine1
|
||||
> mount /dev/tank/fish@pristine1 /mnt/tank/fish@pristine1
|
||||
> ls /mnt/tank/fish\@pristine1
|
||||
lost+found
|
||||
|
||||
> # Changes made to tank/fish1 do not appear in tank/fish@pristine1
|
||||
> touch /mnt/tank/fish1/foo
|
||||
> ls /mnt/tank/fish1/
|
||||
foo lost+found
|
||||
> ls /mnt/tank/fish\@pristine1
|
||||
lost+found
|
||||
|
||||
cd scripts
|
||||
./zfs.sh # Load the ZFS/SPL modules
|
||||
./zpios.sh -c lo-raid0.sh -t tiny -v # Tiny zpios loopback test
|
||||
./zfs.sh -u # Unload the ZFS/SPL modules
|
||||
|
||||
Enjoy,
|
||||
Brian Behlendorf <behlendorf1@llnl.gov>
|
||||
|
|
|
|||
51
TODO
51
TODO
|
|
@ -1,51 +0,0 @@
|
|||
SUMMARY OF MAJOR KNOWN PROBLEMS IN v0.4.6 (Development Release)
|
||||
|
||||
* Fault Management (FM) and sysevent support / analog.
|
||||
bugzilla 14866, 15645
|
||||
|
||||
This is probably the biggest remaining chunk of work. Linux has no
|
||||
direct equivalent of the Solaris Fault Management Architecture (FMA)
|
||||
and we need one. All fault information is currently ignored and no
|
||||
disk errors are even logged. We need to settle on a design for this
|
||||
but minimally it needs to log the events to syslog.
|
||||
|
||||
* Implement the ZVOL.
|
||||
bugzilla xxxxx
|
||||
|
||||
This should be pretty staight forward now that the DMU is fully
|
||||
implemented and solid. It just needs to be done.
|
||||
|
||||
* Implement the ZPL.
|
||||
bugzilla xxxxx
|
||||
|
||||
Getting basic ZPL support should be pretty straight forward. Moving
|
||||
beyond that to fully integrate with the VFS for things like mmap and
|
||||
file locking will be trickier.
|
||||
|
||||
* Integrate the ZFS-FUSE port in to this code base.
|
||||
bugzilla xxxxx
|
||||
|
||||
Merging the zfs-fuse code base in with this project would be nice from a
|
||||
code maintence standpoint. This code base is quite a bit newer than
|
||||
zfs-fuse and it already provides a libzpool library for zfs-fuse to link
|
||||
against. This should be a pretty straight forward addition.
|
||||
|
||||
* Emulate kthreads with pthreads in userspace.
|
||||
bugzilla xxxxx
|
||||
|
||||
There is a patch available for this but each time I've integrated it
|
||||
I've observed SIGSEGVs in ztest. Once this patch is in place ztest
|
||||
can be used to use the kthread API which brings us one step closer
|
||||
to being able to run it in the kernel as an additional sanity check.
|
||||
|
||||
* DMU Performance
|
||||
bugzilla 13566
|
||||
|
||||
While performance is currently not bad it is not where it needs to be
|
||||
for production use. The latest test results which can be found in the
|
||||
docs directly show that on hardware which is capable of 8GB/s we only
|
||||
see a few GB/s when running through the DMU. To address this we need
|
||||
to finish getting the code working with the kernel lock profiler and
|
||||
look for some hot locks. Additionally, it would be interesting to run
|
||||
the same tests on Solaris (once we have a ZVOL/ZPL) and compare the
|
||||
performance. It's not at all clear to me Solaris currently does better.
|
||||
|
|
@ -94,7 +94,11 @@
|
|||
%endif
|
||||
%define kpkg kernel
|
||||
%define kdevpkg kernel-devel
|
||||
%define kverpkg %{kver}
|
||||
%if %{defined el6}
|
||||
%define kverpkg %(echo %{kver} | %{__sed} -e 's/.%{_target_cpu}//g')
|
||||
%else
|
||||
%define kverpkg %{kver}
|
||||
%endif
|
||||
%define koppkg =
|
||||
%if %{undefined kdir}
|
||||
%define kdir %{_usrsrc}/kernels/%{kver}-%{_target_cpu}
|
||||
|
|
|
|||
Loading…
Reference in New Issue