On Tue, Apr 26 2016, Michal Hocko wrote:
> Hi,
> we have discussed this topic at LSF/MM this year. There was a general
> interest in the scope GFP_NOFS allocation context among some FS
> developers. For those who are not aware of the discussion or the issue
> I am trying to sort out (or at least s
On Fri, Apr 29, 2016 at 12:59 AM, Mikulas Patocka wrote:
>
>
> On Fri, 29 Apr 2016, Ming Lei wrote:
>
>> On Thu, Apr 28, 2016 at 11:58 PM, Mikulas Patocka
>> wrote:
>> >
>> >
>> > On Thu, 28 Apr 2016, Ming Lei wrote:
>> >
>> >> Hi Mikulas,
>> >>
>> >> On Thu, Apr 28, 2016 at 11:29 PM, Mikulas Pa
Josef Bacik wrote on 2016/04/28 10:17 -0400:
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce a new function check_tree_block_backref() to check if a
backref points to correct referencer.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
---
cmds-check.c | 95
++
Josef Bacik wrote on 2016/04/28 10:13 -0400:
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce function query_tree_block_level() to resolve tree block level
by reading out the tree block.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
---
This skips the check_tree_bl
Liu Bo wrote on 2016/04/28 10:48 -0700:
On Wed, Apr 27, 2016 at 07:33:18PM +0200, David Sterba wrote:
On Wed, Apr 27, 2016 at 10:23:35AM -0700, Liu Bo wrote:
On Wed, Apr 27, 2016 at 06:39:03PM +0200, David Sterba wrote:
On Tue, Apr 26, 2016 at 05:53:31PM -0700, Liu Bo wrote:
The struct 'map
Josef Bacik wrote on 2016/04/28 10:32 -0400:
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
The branch can be fetched from my github:
https://github.com/adam900710/btrfs-progs.git low_mem_fsck_rebasing
Original btrfsck checks extent tree in a very efficient method, by
recording every checked extent
On Thu, Apr 28, 2016 at 7:09 AM, Matthias Bodenbinder
wrote:
> Am 26.04.2016 um 18:19 schrieb Henk Slager:
>> It looks like a JMS567 + SATA port multipliers behaind it are used in
>> this drivebay. The command lsusb -v could show that. So your HW
>> setup is like JBOD, not RAID.
>
> Here is the
On Wed, Apr 27, 2016 at 07:33:18PM +0200, David Sterba wrote:
> On Wed, Apr 27, 2016 at 10:23:35AM -0700, Liu Bo wrote:
> > On Wed, Apr 27, 2016 at 06:39:03PM +0200, David Sterba wrote:
> > > On Tue, Apr 26, 2016 at 05:53:31PM -0700, Liu Bo wrote:
> > > > The struct 'map_lookup' uses type int for @
From: Omar Sandoval
Changes since v1:
- Fixed _supported_fs and _supported_os in patch 2
- Added Josef's Reviewed-by
Original cover letter below:
Inspired by a conversation a few of us had at LSF about forgotten
fstests, I went back and checked if I had let any tests disappear into
the ether.
From: Omar Sandoval
Replacing and scrubbing RAID 5/6 is now supported on Btrfs. Enable it in
_btrfs_get_profile_configs while making it more generic to also support
replace missing.
Reviewed-by: Eryu Guan
Signed-off-by: Omar Sandoval
---
common/rc | 95
From: Omar Sandoval
Now that _btrfs_get_profile_configs supports replace missing and the
kernel doesn't crash when replacing a missing RAID 5/6 device, test it.
Based on an earlier test from Wang Yanfeng.
Reviewed-by: Josef Bacik
Signed-off-by: Omar Sandoval
---
tests/btrfs/027 | 119
On Fri, 29 Apr 2016, Ming Lei wrote:
> On Thu, Apr 28, 2016 at 11:58 PM, Mikulas Patocka wrote:
> >
> >
> > On Thu, 28 Apr 2016, Ming Lei wrote:
> >
> >> Hi Mikulas,
> >>
> >> On Thu, Apr 28, 2016 at 11:29 PM, Mikulas Patocka
> >> wrote:
> >> >
> >> >
> >> > On Thu, 28 Apr 2016, Ming Lei wrot
On Wed, Apr 27, 2016 at 05:14:36PM +0200, David Sterba wrote:
> --- a/fs/btrfs/super.c
> +++ b/fs/btrfs/super.c
> @@ -1588,8 +1588,6 @@ static struct dentry *btrfs_mount(struct
> file_system_type *fs_type, int flags,
> if (s->s_root) {
> btrfs_close_devices(fs_devices);
>
On Thu, Apr 28, 2016 at 11:58 PM, Mikulas Patocka wrote:
>
>
> On Thu, 28 Apr 2016, Ming Lei wrote:
>
>> Hi Mikulas,
>>
>> On Thu, Apr 28, 2016 at 11:29 PM, Mikulas Patocka
>> wrote:
>> >
>> >
>> > On Thu, 28 Apr 2016, Ming Lei wrote:
>> >
>> >> There were reports about heavy stack use by recurs
On Thu, 28 Apr 2016, Ming Lei wrote:
> Hi Mikulas,
>
> On Thu, Apr 28, 2016 at 11:29 PM, Mikulas Patocka wrote:
> >
> >
> > On Thu, 28 Apr 2016, Ming Lei wrote:
> >
> >> There were reports about heavy stack use by recursive calling
> >> .bi_end_io()([1][2][3]). For example, more than 16K stack
Hi Mikulas,
On Thu, Apr 28, 2016 at 11:29 PM, Mikulas Patocka wrote:
>
>
> On Thu, 28 Apr 2016, Ming Lei wrote:
>
>> There were reports about heavy stack use by recursive calling
>> .bi_end_io()([1][2][3]). For example, more than 16K stack is
>> consumed in a single bio complete path[3], and in [
On Thu, 28 Apr 2016, Ming Lei wrote:
> There were reports about heavy stack use by recursive calling
> .bi_end_io()([1][2][3]). For example, more than 16K stack is
> consumed in a single bio complete path[3], and in [2] stack
> overflow can be triggered if 20 nested dm-crypt is used.
>
> Also p
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce a new function check_tree_block_backref() to check if a
backref points to correct referencer.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
---
cmds-check.c | 95 ++
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
The branch can be fetched from my github:
https://github.com/adam900710/btrfs-progs.git low_mem_fsck_rebasing
Original btrfsck checks extent tree in a very efficient method, by
recording every checked extent in extent record tree to ensure every
extent wi
Hello,
I'm writing a simple custom deduplication script, and faced a problem with how
to make it skip already deduped files. E.g., if I do
cp -a --reflink fileA fileB
...after this, how to check if fileA and fileB refer to the same extents on
disk? I tried comparing the outputs of "filefrag -e
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce function check_dev_extent_item() to find its referencer chunk.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
---
Reviewed-by: Josef Bacik
Thanks,
Josef
--
To unsubscribe from this list: send the line "unsubscribe lin
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce function check_dev_item() to check used space with dev extent
items.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
---
cmds-check.c | 64
1 file changed, 64 in
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce function check_extent_item() using previous introduced
functions.
With previous function to check referencer and backref, this function
can be quite easy.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
---
cmds-check.c |
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce the function check_shared_data_backref() to check the
referencer of a given shared data backref.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
Reviewed-by: Josef Bacik
Thanks,
Josef
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To unsubscribe from this list:
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce new function check_extent_data_backref() to search referencer
for a given data backref.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
Reviewed-by: Josef Bacik
Thanks,
Josef
--
To unsubscribe from this list: send the
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce function check_shared_block_backref() to check shared block
ref.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
---
Reviewed-by: Josef Bacik
Thanks,
Josef
--
To unsubscribe from this list: send the line "unsubscribe l
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce a new function check_tree_block_backref() to check if a
backref points to correct referencer.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
---
cmds-check.c | 95 ++
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce function query_tree_block_level() to resolve tree block level
by reading out the tree block.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
---
This skips the check_tree_block if the transid passes, but we could have
a
On 04/27/2016 09:43 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce a new function check_data_extent_item() to check if the
corresponding data backref exists in extent tree.
Signed-off-by: Lu Fengqi
Signed-off-by: Qu Wenruo
---
Changelog:
v1.1:
Fix a typo which passed wrong parameter for h
On 04/25/2016 11:48 PM, Qu Wenruo wrote:
From: Lu Fengqi
Introduce function check_tree_block_ref() to check whether a tree block
has correct backref in extent tree.
Unlike old extent tree check method, we only use search_slot() to search
reference, no extra structure will be allocated in heap
On 04/28/2016 12:31 AM, Omar Sandoval wrote:
From: Omar Sandoval
Now that _btrfs_get_profile_configs supports replace missing and the
kernel doesn't crash when replacing a missing RAID 5/6 device, test it.
Based on an earlier test from Wang Yanfeng.
Signed-off-by: Omar Sandoval
---
tests/btr
On Mon, Apr 18, 2016 at 07:31:31PM +0800, Anand Jain wrote:
> Thanks for various comments, tests and feedback.
>
>
> Changelog:
> -
>
> v4->v5:
> Kernel:
> a. Originally we had bugs as fixed in the patches below
> [PATCH] btrfs: s_bdev is not null after missing replace
> [PAT
On 2016-04-27 16:18, Juan Alberto Cirez wrote:
Quick question: Supposed I have n-number of storage pods (physical
servers with n-number of physical hhds). The end deployment will be
btrfs at the brick/block level with a distributed file system on top.
Keeping in mind that my overriding goal is to
On 2016-04-27 22:55, Chris Murphy wrote:
On Wed, Apr 27, 2016 at 8:51 PM, Chris Murphy wrote:
On Wed, Apr 27, 2016 at 2:18 PM, Juan Alberto Cirez
wrote:
Quick question: Supposed I have n-number of storage pods (physical
servers with n-number of physical hhds). The end deployment will be
btrfs
On 2016-04-27 19:19, Chris Murphy wrote:
On Wed, Apr 27, 2016 at 5:22 AM, Austin S. Hemmelgarn
wrote:
On 2016-04-26 20:58, Chris Murphy wrote:
On Tue, Apr 26, 2016 at 5:44 AM, Juan Alberto Cirez
wrote:
With GlusterFS as a distributed volume, the files are already spread
among the servers
On Thu, Apr 28, 2016 at 11:12:20AM +0200, David Sterba wrote:
> On Wed, Apr 27, 2016 at 04:22:17PM -0700, Liu Bo wrote:
> > On Wed, Apr 27, 2016 at 05:14:36PM +0200, David Sterba wrote:
> > > A user reported mount failures with EBUSY during boot, there's root
> > > partition and many subvolumes, mo
On Wed, Apr 27, 2016 at 4:14 PM, David Sterba wrote:
> A user reported mount failures with EBUSY during boot, there's root
> partition and many subvolumes, mounted via /etc/fstab.
>
> The failure depends on timing, when multiple subvolumes reach the code
> between superblock creation in RO mode, w
On 27/04/16 23:55, David Sterba wrote:
> On Thu, Mar 10, 2016 at 06:40:54PM +0100, David Sterba wrote:
>> On Thu, Mar 10, 2016 at 01:33:34PM +0500, Roman Mamedov wrote:
>>> On Thu, 10 Mar 2016 01:24:44 -0700
>>> Chris Murphy wrote:
>>>
kernel 4.5.0 rc7
btrfs-progs-4.4.1-1
Summa
Btrfs supports btrfs send and receive tools to backup subvolumes which is
built in and good.
However considering the current storage data utilization in the industry,
using send/receive would be very slow operation and kills lot of CUP
cycles of source machine.
As an example, file systems such
On Wed, Apr 27, 2016 at 04:22:17PM -0700, Liu Bo wrote:
> On Wed, Apr 27, 2016 at 05:14:36PM +0200, David Sterba wrote:
> > A user reported mount failures with EBUSY during boot, there's root
> > partition and many subvolumes, mounted via /etc/fstab.
> >
> > The failure depends on timing, when mul
Gareth Pye posted on Thu, 28 Apr 2016 15:24:51 +1000 as excerpted:
> PDF doc info dates it at 23/1/2013, which is the best guess that can
> easily be found.
Well, "easily" is relative, but motivated by your observation I first
confirmed it, then decided to see what google had to say about the
a
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