In __btrfs_end_transaction(), we have invoked sb_end_intwrite(), but if we
need run btrfs_commit_transaction(), we will decrease the writer counter
for two times because btrfs_commit_transaction() also invokes sb_end_intwrite().
Fix it.
Signed-off-by: Miao Xie mi...@cn.fujitsu.com
---
On 09/15/2012 10:17 PM, Antoine Sirinelli wrote:
Hi,
I have experienced a very reproducible Oops within the btrfs driver. On
a linux 3.5.4, if I mount a volume with the option degraded because
one of the device is missing, I would get an Oops when I unmount it (or
even before). You can see
Abstract
For database testing purposes, a COW filesystem was needed in order to
facilitate snapshotting and rollback, such as to provide mirrors of
our production database at fixed intervals (every night and by
demand).
Platform
An HP Proliant 380P (2x Intel Xeon E5-2620 with 12 cores for a total
* Casper Bang casper.b...@gmail.com:
Oracle (Unbreakable) Linux x64 2.6.39-200.29.3.el6uek.x86_64 #1 SMP
And the btrfs was that from vanilla 2.6.39 (i.e. over a year old)?
--
Ralf Hildebrandt Charite Universitätsmedizin Berlin
ralf.hildebra...@charite.deCampus
We're going to use this flag EXTENT_DEFRAG to indicate which range
belongs to defragment so that we can implement snapshow-aware defrag:
We set the EXTENT_DEFRAG flag when dirtying the extents that need
defragmented, so later on writeback thread can differentiate between
normal writeback and
This comes from one of btrfs's project ideas,
As we defragment files, we break any sharing from other snapshots.
The balancing code will preserve the sharing, and defrag needs to grow this
as well.
Now we're able to fill the blank with this patch, in which we make full use of
backref walking
Please only push this one since the first one remains unchanged, I also posted
it for
others to better review.
thanks,
liubo
On 09/17/2012 05:58 PM, Liu Bo wrote:
This comes from one of btrfs's project ideas,
As we defragment files, we break any sharing from other snapshots.
The balancing
Hi,
On 17/09/2012, at 7:55 PM, Casper Bnag casper.b...@gmail.com wrote:
We're using the latest available kernel for our Oracle Unbreakable
Linux 6.3 from Aug 28. We have no other option, since the Oracle database
software needs to run on a certified distro.
Oracle Database is not certified
On Mon, Sep 17, 2012 at 12:48:10PM +0800, Anand Jain wrote:
btrfs send introduced a part of code to read kernel-data
from user-end using pipe. We need this part of code to be
useable outside of send sub-cmd, so that developing
service sub-cmd can use it.
What's 'service sub-cmd'
Hi,
On 17/09/2012, at 8:47 PM, Casper Bnag casper.b...@gmail.com wrote:
month, that just makes me wonder why Oracle didn't use these latest bits.
We used the most stable release of btrfs that was available when the
development of the UEK was done. Keep in mind that while it's versioned at
I am testing btrfs for long-term storage and backup, and i would like
to know more about autodefrag option:
1. Will autodefrag option benefit ssd?
My understanding is:
autodrag - number of extent decrease - metadata decrease - a
healthier filesystem in the long run
(P.S. I am
On Mon, Sep 17, 2012 at 10:21:00AM +0800, Miao Xie wrote:
On fri, 14 Sep 2012 15:54:18 +0200, David Sterba wrote:
On Thu, Sep 13, 2012 at 06:51:36PM +0800, Miao Xie wrote:
div_factor{_fine} has been implemented for two times, cleanup it.
And I move them into a independent file named math.h
On Sun, Sep 16, 2012 at 11:36:57PM -0600, Miao Xie wrote:
On fri, 14 Sep 2012 11:26:20 -0400, Josef Bacik wrote:
So we start our freeze, somebody comes in and does an fsync() on a file
where we have to commit a transaction for whatever reason, and we will
deadlock because the freeze is
On Mon, Sep 17, 2012 at 12:48:10PM +0800, Anand Jain wrote:
btrfs send introduced a part of code to read kernel-data
from user-end using pipe. We need this part of code to be
useable outside of send sub-cmd, so that developing
service sub-cmd can use it.
What's 'service sub-cmd'
Hi,
Josef, I noticed that you did not add the patch to btrfs-next. This is
understandable for a RFC patch of course, but I'd like to ask you to add
it into the queue, so people testing -next have a chance to give it a
try.
Thanks,
david
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On Mon, Sep 17, 2012 at 06:17:53PM +0200, David Sterba wrote:
On Fri, Sep 14, 2012 at 10:09:12AM -0700, Marc MERLIN wrote:
I only have btrfs on my laptop and just started getting this.
Afaik, this is not directly related to btrfs. Search for the Root
dentry has weird name message and you'll
ctree.c:btrfs_insert_some_items()
{
...
if (total_size + data_size[i]+ ...
{
break;
nr = i;
}
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the body of a message to
On Mon, Sep 17, 2012 at 10:21:00AM +0800, Miao Xie wrote:
On fri, 14 Sep 2012 15:54:18 +0200, David Sterba wrote:
On Thu, Sep 13, 2012 at 06:51:36PM +0800, Miao Xie wrote:
div_factor{_fine} has been implemented for two times, cleanup it.
And I move them into a independent file named math.h
On Mon, Sep 17, 2012 at 12:34:27AM -0600, Miao Xie wrote:
In __btrfs_end_transaction(), we have invoked sb_end_intwrite(), but if we
need run btrfs_commit_transaction(), we will decrease the writer counter
for two times because btrfs_commit_transaction() also invokes
sb_end_intwrite().
Fix
On Thu, Sep 06, 2012 at 06:00:32PM +0800, Miao Xie wrote:
This patch fixes the following problem:
- If we failed to deal with the delayed dir items, we should abort
transaction,
just as its comment said. Fix it.
- If root reference or root back reference insertion failed, we should
On Mon, Sep 17, 2012 at 03:58:56AM -0600, Liu Bo wrote:
This comes from one of btrfs's project ideas,
As we defragment files, we break any sharing from other snapshots.
The balancing code will preserve the sharing, and defrag needs to grow this
as well.
Now we're able to fill the blank with
On Sun, Sep 16, 2012 at 10:07:39PM -0600, Kay Sievers wrote:
I'm currently playing around with native btrfs multi-device support in
systemd. There might be a few hotplug issues to solve, here is the
first one:
A mounted (otherwise unused) multi-device volume (USB multi-slot card
reader),
On Mon, Sep 17, 2012 at 10:25:54AM -0600, Alan Cox wrote:
ctree.c:btrfs_insert_some_items()
{
...
if (total_size + data_size[i]+ ...
{
break;
nr = i;
}
Hi Alan,
Definitely not right ;) It's
Dave Sterba pointed out a sleeping while atomic bug while doing fsync. This
is because I'm an idiot and didn't realize that rwlock's were spin locks, so
we've been holding this thing while doing allocations and such which is not
good. This patch fixes this by dropping the write lock before we do
On Mon, Sep 17, 2012 at 02:46:00PM +0800, Liu Bo wrote:
On 09/15/2012 10:17 PM, Antoine Sirinelli wrote:
I have experienced a very reproducible Oops within the btrfs driver. On
a linux 3.5.4, if I mount a volume with the option degraded because
one of the device is missing, I would get an
Below is my original post about my fs. Just wondering if anyone knows if
I can at this point get my data back or cut my losses. Is an fsck cable
of getting this fixed close or has my 2 year wait been in vain. Thanks
in advance!
Excerpts from Vladi Gergov's message of 2010-10-29 16:53:42 -0400:
On Mon, Sep 17, 2012 at 7:19 PM, Josef Bacik jba...@fusionio.com wrote:
On Sun, Sep 16, 2012 at 10:07:39PM -0600, Kay Sievers wrote:
I'm currently playing around with native btrfs multi-device support in
systemd. There might be a few hotplug issues to solve, here is the
first one:
A mounted
We are currently playing around with native btrfs multi-device support
in systemd. We already committed the needed pieces to systemd git, to
register all detected btrfs filesystems with the kernel.
For volumes which are listed in fstab for mounting, we delay the
actual mount-attempt of a
Following patches are going to implement one of unclaimed features
listed in the btrfs wiki:
https://btrfs.wiki.kernel.org/index.php/Project_ideas#Set_mount_options_permanently
Special thanks to Kazuhiro Yamashita for his time and efforts.
Your comments/reviews are welcomed.
Thanks,
H.Seto
--
This patch create space to hold default mount option,
and to use saved default mount option change super.c
to read default mount option first when mount devices.
Signed-off-by: Hidetoshi Seto seto.hideto...@jp.fujitsu.com
---
fs/btrfs/ctree.h |5 -
fs/btrfs/super.c |2 ++
2 files
This patch adds mount-option command.
The command can set/get default mount options.
Now, the command can set/get 24 options.
These options are equal to mount options which store
in fs_info/mount-opt.
Signed-off-by: Hidetoshi Seto seto.hideto...@jp.fujitsu.com
---
Makefile |5 +-
On mon, 17 Sep 2012 18:56:27 +0200, David Sterba wrote:
On Thu, Sep 06, 2012 at 06:00:32PM +0800, Miao Xie wrote:
This patch fixes the following problem:
- If we failed to deal with the delayed dir items, we should abort
transaction,
just as its comment said. Fix it.
- If root reference
On tue, 18 Sep 2012 10:30:17 +0900, Hidetoshi Seto wrote:
This patch adds mount-option command.
The command can set/get default mount options.
Now, the command can set/get 24 options.
These options are equal to mount options which store
in fs_info/mount-opt.
I don't think we need implement a
As I said in our private email exchange some months ago, I don't
think this is the right way to be doing this. For example, if you use
an alternative tool (such as btrfs-gui) which uses the ioctls
directly, you've lost that logging information.
I agree with that Hugo. Thanks. These
On Mon, 17 Sep 2012 18:31:13 +0200, David Sterba wrote:
On Mon, Sep 17, 2012 at 10:21:00AM +0800, Miao Xie wrote:
On fri, 14 Sep 2012 15:54:18 +0200, David Sterba wrote:
On Thu, Sep 13, 2012 at 06:51:36PM +0800, Miao Xie wrote:
div_factor{_fine} has been implemented for two times, cleanup it.
On Tue, 18 Sep 2012 10:31:41 +0800
Miao Xie mi...@cn.fujitsu.com wrote:
On tue, 18 Sep 2012 10:30:17 +0900, Hidetoshi Seto wrote:
This patch adds mount-option command.
The command can set/get default mount options.
Now, the command can set/get 24 options.
These options are equal to mount
A script on the test server, would then apply Oracle archive files
from the production environment to this Oracle sync database, every
10'th minute, effectively making it near up-to-date with production.
The most reliable way to do this was with a simple NFS mount (rather
than rsync or
What's 'service sub-cmd' please?
at the moment 'btrfs service historymnt|dev'
to show logs of maintenance.
comments/suggestions welcome.
Sorry, but without a more detailed description I can hardly give useful
comments.
David,
'btrfs service history mnt|dev'
is basically to
The macro btrfs_abort_transaction() can get the line number of the code
where the problem happens, so we should invoke it in the place that the
error occurs, or we will lose the line number.
Reported-by: David Sterba d...@jikos.cz
Signed-off-by: Miao Xie mi...@cn.fujitsu.com
---
- if(ri-generation == ri-generation_v2) {
+ if(sh-len == sizeof(struct btrfs_root_item)) {
t = ri-otime.sec;
This looks fine now but should this work when we
move to v3 and still have access
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