To allow delayed subtree swap rescan, btrfs needs to record per-root
info about which tree blocks get swapped.
So this patch introduces per-root btrfs_qgroup_swapped_blocks structure,
which records which tree blocks get swapped.
The designed workflow will be:
1) Record the subtree root block
[Bad format in previous reply, send again]
On 10/18/18 10:41 PM, Christoph Anton Mitterer wrote:
Hey.
So I'm back from a longer vacation and had now the time to try out your
patches from below:
On Wed, 2018-09-05 at 15:04 +0800, Su Yue wrote:
I found the errors should blame to something
On 10/18/18 10:41 PM, Christoph Anton Mitterer wrote:
Hey.
So I'm back from a longer vacation and had now the time to try out your
patches from below:
On Wed, 2018-09-05 at 15:04 +0800, Su Yue wrote:
I found the errors should blame to something about inode_extref check
in lowmem mode.
I
On 10/19/2018 02:02 AM, Chris Murphy wrote:
On Tue, Oct 16, 2018 at 10:08 PM, Anand Jain wrote:
So a possible solution for the reproducible builds:
usual mkfs.btrfs dev
Write the data
unmount; create btrfs-image with uuid/fsid/time sanitized; mark it as a
seed (RO).
On 2018/10/19 上午12:20, David Sterba wrote:
> On Thu, Oct 18, 2018 at 07:17:27PM +0800, Qu Wenruo wrote:
>> +void btrfs_qgroup_clean_swapped_blocks(struct btrfs_root *root)
>> +{
>> +struct btrfs_qgroup_swapped_blocks *swapped_blocks;
>> +struct btrfs_qgroup_swapped_block *cur, *next;
>>
On Tue, Oct 16, 2018 at 10:08 PM, Anand Jain wrote:
>
> So a possible solution for the reproducible builds:
>usual mkfs.btrfs dev
>Write the data
>unmount; create btrfs-image with uuid/fsid/time sanitized; mark it as a
> seed (RO).
>check/verify the hash of the image.
Gotcha.
On Fri, Oct 12, 2018 at 03:32:32PM -0400, Josef Bacik wrote:
> --- a/fs/btrfs/tree-log.c
> +++ b/fs/btrfs/tree-log.c
> @@ -4374,7 +4374,6 @@ static int btrfs_log_changed_extents(struct
> btrfs_trans_handle *trans,
>
> INIT_LIST_HEAD();
>
> - down_write(>dio_sem);
I'll add
On Thu, Oct 18, 2018 at 07:17:27PM +0800, Qu Wenruo wrote:
> +void btrfs_qgroup_clean_swapped_blocks(struct btrfs_root *root)
> +{
> + struct btrfs_qgroup_swapped_blocks *swapped_blocks;
> + struct btrfs_qgroup_swapped_block *cur, *next;
> + int i;
> +
> + swapped_blocks =
Hey.
So I'm back from a longer vacation and had now the time to try out your
patches from below:
On Wed, 2018-09-05 at 15:04 +0800, Su Yue wrote:
> I found the errors should blame to something about inode_extref check
> in lowmem mode.
> I have writeen three patches to detect and report errors
Hello guys!
I have a 2TB disk formatted to btrfs.My notebook broke last may, so I
haven't used it in a long time, only to backup a few files, but from a
windows pc(using windows btrfs driver), and maybe (i don't remember) put
a few files to the disk.Then my thinkpadlinux-bt...@vger.kernel.org
16.10.2018 0:33, Chris Murphy пишет:
> On Mon, Oct 15, 2018 at 3:26 PM, Anton Shepelev wrote:
>> Chris Murphy to Anton Shepelev:
>>
How can I track down the origin of this mount point:
/dev/sda2 on /home/hana type btrfs
On 18/10/2018 08.02, Anton Shepelev wrote:
I wrote:
What may be the reason of a CRC mismatch on a BTRFS file in
a virutal machine:
csum failed ino 175524 off 1876295680 csum 451760558
expected csum 1446289185
Shall I seek the culprit in the host machine on in the
guest one? Supposing the
I wrote:
>What may be the reason of a CRC mismatch on a BTRFS file in
>a virutal machine:
>
>csum failed ino 175524 off 1876295680 csum 451760558
>expected csum 1446289185
>
>Shall I seek the culprit in the host machine on in the
>guest one? Supposing the host machine healty, what
>operations on
Refactor btrfs_qgroup_trace_subtree_swap() into
qgroup_trace_subtree_swap(), which only needs two extent buffer and some
other bool to control the behavior.
Also, allow depending functions to accept parameter @exec_post to
determine whether we need to trigger backref walk.
This provides the
To allow delayed subtree swap rescan, btrfs needs to record per-root
info about which tree blocks get swapped.
So this patch introduces per-root btrfs_qgroup_swapped_blocks structure,
which records which tree blocks get swapped.
The designed workflow will be:
1) Record the subtree root block
Before this patch, qgroup code trace the whole subtree of file and reloc
trees unconditionally.
This makes qgroup numbers consistent, but it could cause tons of
unnecessary extent trace, which cause a lot of overhead.
However for subtree swap of balance, since both subtree contains the
same
Commit fb235dc06fac ("btrfs: qgroup: Move half of the qgroup accounting
time out of commit trans") makes btrfs_qgroup_extent_record::old_roots
populated at insert time.
It's OK for most cases as btrfs_qgroup_extent_record is inserted at
delayed ref head insert time, which has a less restrict lock
Currently only relocation code cares about btrfs_root::reloc_root, and
they have the method to sync btrfs_root::reloc_root without screwing
things up.
However qgroup code doesn't really have the ability to keep
btrfs_root::reloc_root reliable.
Currently if someone outside of relocation code want
This patchset can be fetched from github:
https://github.com/adam900710/linux/tree/qgroup_balance_skip_trees
Which is still based on v4.19-rc1, but with previous submitted patches
as dependency.
This patch address the heavy load subtree scan, but delaying it until
we're going to modify the
Since it's replaced by new delayed subtree swap code, remove the
original code.
The cleanup is small since most of its core function is still used by
delayed subtree swap trace.
Signed-off-by: Qu Wenruo
---
fs/btrfs/qgroup.c | 94 ---
On 2018/10/18 下午2:16, Tony Prokott wrote:
> On Wed, 17 Oct 2018 17:57:25 -0700 Qu Wenruo
> wrote
> ...
> > > But after chrooting to update-initramfs and cataloging resulting image
> content, usb_storage and uas were present under /lib/modules/xxx already, and
> failing systems
On Thu, Oct 18, 2018 at 6:04 AM Jean-Denis Girard wrote:
>
> Hi list,
>
> My goal is to duplicate some SD cards, to prepare 50 similar Raspberry Pi.
>
> First, I made a tar of my master SD card (unmounted). Then I made a
> script, which creates 2 partitions (50 MB for boot, 14 GB for /),
>
On Wed, 17 Oct 2018 17:57:25 -0700 Qu Wenruo
wrote
...
> > But after chrooting to update-initramfs and cataloging resulting image
> > content, usb_storage and uas were present under /lib/modules/xxx already,
> > and failing systems still just busybox without a real rootfs rather
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