Re: Btrfs - Unable to mount, can't read superblock?

2010-02-14 Thread TARUISI Hiroaki
Hi, This disk was used as /dev/sdd previously, and now it's named /dev/sdc, isn't it? If so, you can use this usb disk after reboot, or adjusting that the disk is recognized as /dev/sdd. Btrfs does not support device file renaming yet. Regards, taruisi (2010/02/13 21:45), Victor Hooi wrote: > h

[LOCKING] 2.6.33-rc8 btrfs vs java

2010-02-14 Thread Ed Tomlinson
Hi, Found this in my log for 2.6.33-rc8. Figgured it might be interesting since .33 is close. Thanks, Ed [102331.564869] [102331.564871] ==

Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8

2010-02-14 Thread Rafael J. Wysocki
On Sunday 14 February 2010, James Cloos wrote: > Sometime between rc6 and rc7 all filesystem I/O started using 100% CPU, > usually on the order of 60% sys, 40% user. > > I've tried this with each of ext4, jfs and btrfs filesystems. All show > the same issue. > > Using dd(1) to read from the bloc

support of "chattr +c" flag

2010-02-14 Thread Massimiliano Adamo
Hi all, After trying the filesystem I noticed the following: as you know the "chattr" have a "c" flag to provide transparent compression on directories/files. Of course, to use this flag the filesystem must have the transparent compression feature, and must be aware of the flag itself. In the c

Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8

2010-02-14 Thread James Cloos
I forgot to say: # CONFIG_SMP is not set CONFIG_TREE_PREEMPT_RCU=y # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set CONFIG_PREEMPT=y # CONFIG_DEBUG_PREEMPT is not set # CONFIG_PREEMPT_TRACER is not set -JimC -- James Cloos OpenPGP: 1024D/ED7DAEA6 -- To unsubscribe

Re: [PATCH 0/2] btrfs: a new tool to manage a btrfs filesystem

2010-02-14 Thread Goffredo Baroncelli
Hi all, On Sunday 14 February 2010, Thomas Kupper wrote: > Hi Goffredo, > > Great work! It is indeed much easier to work with one tool instead with the many of them! > > > Usage: > > btrfs snapshot|-s [/] > > Create a writeble snapshot of the subvolume > >

Re: [PATCH 0/2] btrfs: a new tool to manage a btrfs filesystem

2010-02-14 Thread Dipl.-Ing. Michael Niederle
When creating new commands I always prefer increased readability and meaningfull names for subcommands and options. If one often enters commands directly at the command prompt one could use shell-aliases, if written in scripts long names make the scripts much easier to understand. It's great that

[PATCH 0/2] btrfs: a new tool to manage a btrfs filesystem

2010-02-14 Thread Thomas Kupper
Hi Goffredo, Great work! It is indeed much easier to work with one tool instead with the many of them! > Usage: > btrfs snapshot|-s [/] > Create a writeble snapshot of the subvolume > with the name in the > directory. > btrfs de