On 07/29/2010 09:11 PM, Adi wrote:
> hi,
> i have a problem with mounting a btrfspartition. i think it corrupted
> somehow. btrfsck also didn't work.
> here is the demesg output, if i try to btrfsck it:
>
>
Hi, Adi
can you give us some steps with which the bug can be reproduced?
Thanks,
liub
Hello,
kerner 2.6.35-rc6
btrfs filesystem df /home
Data: total=1.68TB, used=987.62GB
Metadata: total=56.01GB, used=48.16GB
System: total=12.00MB, used=200.00KB
touch: cannot touch `/home/x': No space left on device
Any ideas what I should do?
Thank you
Lubos
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Hi,
> I don't know whether this demand, which specified some subvolumes
> or directories to be compressed, conflict with the design of
> btrfs's compression feature, may be they want to do this thing
> well, and everyone will enable the compression feature, rather
> than throw the d
I don't know whether this demand, which specified some subvolumes or
directories to be compressed, conflict with the design of btrfs's
compression feature, may be they want to do this thing well, and
everyone will enable the compression feature, rather than throw the
decision to user to determine w
Hi,
> So, is there such a method: in a specified directory, the
> compression feature is enabled, and the file in this directory
> will be compressed automatically, while the others don't enable
> compression.
I don't think so, but it wouldn't be difficult -- you'd just set a
per-inod
So, is there such a method: in a specified directory, the compression
feature is enabled, and the file in this directory will be compressed
automatically, while the others don't enable compression.
thanks.
2010/7/29 Wang Shaoyan :
> A prerequisite is: when first mounted file system, not specify '
On Thu, Jul 29, 2010 at 11:15:57PM +0400, Vasiliy Kulikov wrote:
> Hi,
>
> I've discovered that some btrfs code doesn't check whether kmalloc()
> call succeeded. I poorly understand what this code does and how it can
> be changed, maybe it would be happy with __GFP_NOFAIL.
>
> Also there are BU
Hi,
I've discovered that some btrfs code doesn't check whether kmalloc()
call succeeded. I poorly understand what this code does and how it can
be changed, maybe it would be happy with __GFP_NOFAIL.
Also there are BUG_ON() after kmalloc()'s, if they could be changed not
to panic it would be great
On 07/29/2010 07:09 PM, Johannes Hirte wrote:
> Am Donnerstag 22 Juli 2010, 20:07:23 schrieb Johannes Hirte:
>> Am Montag 19 Juli 2010, 10:01:46 schrieb Miao Xie:
>>> On Thu, 15 Jul 2010 20:14:51 +0200, Johannes Hirte wrote:
Am Donnerstag 15 Juli 2010, 02:11:04 schrieb Dave Chinner:
> On W
Am Donnerstag 22 Juli 2010, 20:07:23 schrieb Johannes Hirte:
> Am Montag 19 Juli 2010, 10:01:46 schrieb Miao Xie:
> > On Thu, 15 Jul 2010 20:14:51 +0200, Johannes Hirte wrote:
> > > Am Donnerstag 15 Juli 2010, 02:11:04 schrieb Dave Chinner:
> > >> On Wed, Jul 14, 2010 at 05:25:23PM +0200, Johannes
On Thu, Jul 29, 2010 at 12:35:59AM -0400, Ken D'Ambrosio wrote:
> Hello, all. I'm thinking of rolling out a BackupPC server, and -- based
> on the strength of the recent Phoronix benchmarks
> (http://benchmarkreviews.com/index.php?option=com_content&task=view&id=11156&Itemid=23)
> -- had been stro
hi,
i have a problem with mounting a btrfspartition. i think it corrupted somehow.
btrfsck also didn't work.
here is the demesg output, if i try to btrfsck it:
***
device-mapper: ioctl: unable to remove open device temporary-cryptsetup-2466
device fsid 184f65b363e
On 07/29/2010 07:27 PM, Ulrich Hecht wrote:
> Returns a file's size on disk. Based on a patch by Chris Ball, improved
> following suggestions by Chris Mason and Miao Xie.
>
> Minimal example:
>
> #include
> #include
> #include
> #include
> #define BTRFS_IOCTL_MAGIC 0x94
> #define BTRFS_IO
On Tuesday 27 July 2010, Miao Xie wrote:
> Why don't you use btrfs_get_extent() to implement it?
Because I didn't know about it. :) Thanks, that simplifies things a lot.
CU
Uli
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Returns a file's size on disk. Based on a patch by Chris Ball, improved
following suggestions by Chris Mason and Miao Xie.
Minimal example:
#include
#include
#include
#include
#define BTRFS_IOCTL_MAGIC 0x94
#define BTRFS_IOC_COMPR_SIZE _IOR(BTRFS_IOCTL_MAGIC, 21, uint64_t)
int main(in
On Thu, 29 Jul 2010 18:38:39 +0800, Yan, Zheng wrote:
2010/7/29 Miao Xie:
From: Liu Bo
Only when a page is not found by page_index, we'll go to the error check.
Signed-off-by: Liu Bo
Signed-off-by: Miao Xie
---
fs/btrfs/compression.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(
2010/7/29 Miao Xie :
> From: Liu Bo
>
> Only when a page is not found by page_index, we'll go to the error check.
>
> Signed-off-by: Liu Bo
> Signed-off-by: Miao Xie
> ---
> fs/btrfs/compression.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/fs/btrfs/compressio
On Thu, 29 Jul 2010 16:55:03 +0800, Wang Shaoyan wrote:
A prerequisite is: when first mounted file system, not specify '-o
compress' options, only on mount subvolume
Below is my test:
# mkfs.btrfs /dev/sda8
# mount /dev/sda8 btrfs
# df
Used: 56k
# btrfs subvolume create mysubvolume
# mkdir s
num_workers_starting is increased twice when the btrfs uses generic workers
to create a new kthread.
The reason is following:
start_new_worker_func() calls btrfs_start_workers() to start a new kthread,
this function will add 1 to ->num_workers_starting, but ->num_workers_starting
has been increase
From: Liu Bo
- There exists a memory leak.
- More checks of returned "size" are needed.
According to ext3_get_acl()'s style, we do some adjustments here.
Signed-off-by: Liu Bo
Signed-off-by: Miao Xie
---
fs/btrfs/acl.c | 17 -
1 files changed, 8 insertions(+), 9 deletions(-
If we stop all of the kthread when creating a new kthread fails, the btrfs
will hangup because there is no kthread to deal with the requests submited
by the btrfs.
And the best way to handle kthread-creating failure is "don't do anything",
because there are other kthreads in the kthread pool to de
If btrfs_start_workers() failed, we must stop mounting the btrfs, otherwise
the btrfs can't run well because there is no kthread to deal with the request
submited by it.
Signed-off-by: Miao Xie
---
fs/btrfs/disk-io.c | 33 -
1 files changed, 24 insertions(+), 9
From: Liu Bo
Only when a page is not found by page_index, we'll go to the error check.
Signed-off-by: Liu Bo
Signed-off-by: Miao Xie
---
fs/btrfs/compression.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index cb387
- cleanup unnecessary code
- add validity check for acl
Signed-off-by: Miao Xie
---
fs/btrfs/acl.c | 11 ++-
1 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 2f4f65a..bb35580 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -169,16
btrfs returned the acl info though it was mounted with "noacl" option.
Steps to reproduce:
# mkfs.btrfs /dev/sda2
# mount /dev/sda2 /mnt
# touch /mnt/file0
# setfacl -m 'u:root:x,g::x,o::x' /mnt/file0
# umount /mnt
# mount /dev/sda2 -o noacl /mnt
# getfacl /mnt/file0
we add a noacl check f
A prerequisite is: when first mounted file system, not specify '-o
compress' options, only on mount subvolume
Below is my test:
# mkfs.btrfs /dev/sda8
# mount /dev/sda8 btrfs
# df
Used: 56k
# btrfs subvolume create mysubvolume
# mkdir some_dir_in_root
# mount -o compress,subvol=mysubvolume /dev
Hello,
Pherhaps it would be a good idea to add a tracepoint before each return
ENOSPC? It shouldn't matter too much since a reasonable assumption would
be that filesystems aren't running out of space most of the time. And
you can use 'perf' for more insight in these cases without recompiling
the k
On Thu, 29 Jul 2010 15:50:28 +0800, Wang Shaoyan wrote:
Hi.
I want a subvolume in root to be compressed, I try to do this:
# mkfs.btrfs /dev/sda8
# mount /dev/sda8 /home/usr/btrfs
# cd /home/usr/btrfs
# btrfs subvolume create mysubvolume
# mount -o compress,subvol=mysubvolume /dev/sda8 some_dir_i
On Thursday 29 July 2010 13:30:13 mukai wrote:
> Hi
>
> Can I use ionice on btrfs?
>
Yes, you can. I/O priorities are honoured by the I/O scheduler, independant of
the file-system. And only cfq supports I/O priorities.
Thanks
Nikanth
> Thanks
>
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Hi
Can I use ionice on btrfs?
Thanks
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Hi.
I want a subvolume in root to be compressed, I try to do this:
# mkfs.btrfs /dev/sda8
# mount /dev/sda8 /home/usr/btrfs
# cd /home/usr/btrfs
# btrfs subvolume create mysubvolume
# mount -o compress,subvol=mysubvolume /dev/sda8 some_dir_in_root
but when I create a file in some_dir_in_root, the f
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