Hi,
As I have been reading btrfs whitepaper it speaks about autodefrag in very
generic terms - once random write in the file is detected it is put in the
queue to be defragmented. Yet I could not find any specifics about this
process described anywhere.
My use case is databases and as such lar
Suddenly discovered undocumented (in man or anywhere) -i parameter of
'btrfs subvolume snapshot' that adds snapshot to qgroup without
invalidating statistics. Amazing!
--
With Best Regards,
Marat Khalili
On 08/02/17 18:46, Marat Khalili wrote:
I'm using trying to use qgroups to keep track of
On Thu, Feb 02, 2017 at 05:49:22PM -0800, Liu Bo wrote:
> This introduces a new helper which can be used to process pages bits.
>
> Signed-off-by: Liu Bo
Reviewed-by: David Sterba
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On Thu, Feb 02, 2017 at 05:49:23PM -0800, Liu Bo wrote:
> Since we have a helper to set page bits, let lock_delalloc_pages and
> __unlock_for_delalloc use it.
>
> Signed-off-by: Liu Bo
Reviewed-by: David Sterba
I've separated the changes of __process_pages_contig to another patch,
just moving
On Thu, Feb 09, 2017 at 05:24:33PM +0900, Takafumi Kubota wrote:
> If btrfs_bio_alloc fails in submit_extent_page, submit_extent_page returns
> without clearing the writeback bit of the failed page.
>
> __extent_writepage_io, that is a caller of submit_extent_page,
> does not clear the remaining w
On Thu, Feb 09, 2017 at 10:45:06AM +0800, Qu Wenruo wrote:
> The original csum error message only outputs inode number, offset, check
> sum and expected check sum.
>
> However no root objectid is outputted, which sometimes makes debugging
> quite painful under multi-subvolume case (including reloc
Greetings,
I'm trying to utilize btrfs subvols to allow me to boot separate
distros without having to create so many partitions. I'm on Arch Linux
and not finding the wiki super helpful with specifics on dm-crypt/luks
and btrfs.
Requested info:
$ uname -a
Linux arch_zbook 4.9.8-1-ARCH #1 SMP PR
On Thu, Feb 09, 2017 at 04:47:43PM +0100, David Sterba wrote:
> Commit "btrfs: ulist: Add ulist_del() function" (d4b804045924d7f8)
> removed some debugging code but left the structure defintions.
>
Reviewed-by: Liu Bo
> Signed-off-by: David Sterba
> ---
> fs/btrfs/ulist.h | 7 ---
> 1 fil
This is not a Btrfs problem yet. Syslinux isn't even getting the
kernel and initramfs loaded, otherwise you'd get a failure during
boot. But instead you're at the bootloader still.
One thing to realize is that syslinux only finds kernels and initramfs
on the local file system. So assuming this sys
From: Omar Sandoval
If btrfs_decompress_buf2page() is handed a bio with its page in the
middle of the working buffer, then we adjust the offset into the working
buffer. After we copy into the bio, we advance the iterator by the
number of bytes we copied. Then, we have some logic to handle the cas
Sorry for the late reply, see below for why :) .
On Friday 03 February 2017 23:44:10 Kai Krakow wrote:
> Am Thu, 02 Feb 2017 13:01:03 +0100
>
> schrieb Marc Joliet :
[...]
> > > Btrfs --repair refused to repair the filesystem telling me something
> > > about compressed extents and an unsupported
On Fri, Feb 10, 2017 at 12:15:11PM -0800, Omar Sandoval wrote:
> From: Omar Sandoval
>
> If btrfs_decompress_buf2page() is handed a bio with its page in the
> middle of the working buffer, then we adjust the offset into the working
> buffer. After we copy into the bio, we advance the iterator by
On Fri, Feb 10, 2017 at 02:46:09PM -0800, Liu Bo wrote:
> On Fri, Feb 10, 2017 at 12:15:11PM -0800, Omar Sandoval wrote:
> > From: Omar Sandoval
> >
> > If btrfs_decompress_buf2page() is handed a bio with its page in the
> > middle of the working buffer, then we adjust the offset into the working
On Fri, Feb 10, 2017 at 02:52:11PM -0800, Omar Sandoval wrote:
> On Fri, Feb 10, 2017 at 02:46:09PM -0800, Liu Bo wrote:
> > On Fri, Feb 10, 2017 at 12:15:11PM -0800, Omar Sandoval wrote:
> > > From: Omar Sandoval
> > >
> > > If btrfs_decompress_buf2page() is handed a bio with its page in the
> >
On Fri, Feb 10, 2017 at 03:03:35PM -0800, Omar Sandoval wrote:
> From: Omar Sandoval
>
> If btrfs_decompress_buf2page() is handed a bio with its page in the
> middle of the working buffer, then we adjust the offset into the working
> buffer. After we copy into the bio, we advance the iterator by
From: Omar Sandoval
If btrfs_decompress_buf2page() is handed a bio with its page in the
middle of the working buffer, then we adjust the offset into the working
buffer. After we copy into the bio, we advance the iterator by the
number of bytes we copied. Then, we have some logic to handle the cas
On Fri, Feb 10, 2017 at 2:03 PM, Chris Murphy wrote:
> This is not a Btrfs problem yet. Syslinux isn't even getting the
> kernel and initramfs loaded, otherwise you'd get a failure during
> boot. But instead you're at the bootloader still.
>
> One thing to realize is that syslinux only finds kerne
On Fri, Feb 10, 2017 at 11:40:41AM -0600, John Hendy wrote:
> Greetings,
>
>
> I'm trying to utilize btrfs subvols to allow me to boot separate
> distros without having to create so many partitions. I'm on Arch Linux
> and not finding the wiki super helpful with specifics on dm-crypt/luks
> and b
On Fri, Feb 10, 2017 at 5:49 PM, Hugo Mills wrote:
> On Fri, Feb 10, 2017 at 11:40:41AM -0600, John Hendy wrote:
>> Greetings,
>Just as an aside -- it doesn't affect you here, but you might want
> to be aware -- syslinux doesn't support multi-device btrfs. I've been
> bitten by that before,
On Fri, Feb 10, 2017 at 06:05:57PM -0600, John Hendy wrote:
> On Fri, Feb 10, 2017 at 5:49 PM, Hugo Mills wrote:
> > On Fri, Feb 10, 2017 at 11:40:41AM -0600, John Hendy wrote:
> >> Greetings,
>
>
> >Just as an aside -- it doesn't affect you here, but you might want
> > to be aware -- syslin
Am Fri, 10 Feb 2017 23:15:03 +0100
schrieb Marc Joliet :
> # btrfs filesystem df /media/MARCEC_BACKUP/
> Data, single: total=851.00GiB, used=831.36GiB
> System, DUP: total=64.00MiB, used=120.00KiB
> Metadata, DUP: total=13.00GiB, used=10.38GiB
> Metadata, single: total=1.12GiB, used=0.00B
> Glo
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