I've updated the BTRFS wiki here with all the new tools people have
mentioned:
https://btrfs.wiki.kernel.org/index.php/Deduplication#Other_tools
Please let me know if anyone who does not have access to the wiki has
any additions, updates or corrections to what I've written here.
James
On 08
On Fri, Nov 11, 2016 at 4:38 PM, David Sterba wrote:
> Hi,
>
> btrfs-progs version 4.8.3 have been released. Handful of fixes and lots of
> cleanups.
>
> Changes:
> * check:
> * support for clearing space cache (v1)
> * size reduction of inode backref structure
> * send:
> * fix ha
On 2016-09-21 11:51, Chris Murphy wrote:
I'm coming into this late and realize most questions have been
answered. But I take the position this is a bug, clearly there's
enough space when df reports only 33% used, and therefore it's
important to gather information about the file system in its cur
On Fri, Nov 11, 2016 at 07:17:08PM -0800, Marc MERLIN wrote:
> On Fri, Nov 11, 2016 at 11:55:21AM +0800, Qu Wenruo wrote:
> > It seems to be orphan inodes.
> > Btrfs doesn't remove all the contents of an inode at rm time.
> > It just unlink the inode and put it into a state called orphan inodes.(Ca
On Sun, 13 Nov 2016 07:06:30 -0800
Marc MERLIN wrote:
> So first:
> a) find -inum returns some inodes that don't match
> b) but argh, multiple files (very different) have the same inode number, so
> finding
> files by inode number after scrub flagged an inode bad, isn't going to work :(
I wonde
On Sun, Nov 13, 2016 at 08:13:29PM +0500, Roman Mamedov wrote:
> On Sun, 13 Nov 2016 07:06:30 -0800
> Marc MERLIN wrote:
>
> > So first:
> > a) find -inum returns some inodes that don't match
> > b) but argh, multiple files (very different) have the same inode number, so
> > finding
> > files by
From: Omar Sandoval
Signed-off-by: Omar Sandoval
---
cmds-inspect-dump-super.c | 24
1 file changed, 24 insertions(+)
diff --git a/cmds-inspect-dump-super.c b/cmds-inspect-dump-super.c
index d9f7bfb..ba0d708 100644
--- a/cmds-inspect-dump-super.c
+++ b/cmds-inspect-dum
From: Omar Sandoval
If this flag is passed to open_ctree(), we'll clear the
FREE_SPACE_TREE_VALID compat_ro bit. The kernel will then reconstruct
the free space tree the next time the filesystem is mounted.
Signed-off-by: Omar Sandoval
---
chunk-recover.c | 2 +-
disk-io.c | 28
From: Omar Sandoval
Hi,
This series implements some support for space_cache=v2 in btrfs-progs.
In particular, this adds support for `btrfs check --clear-space-cache v2`,
proper printing of the free space tree flags for `btrfs inspect-internal
dump-super`, and better documentation.
We'd previous
From: Omar Sandoval
This is just the definition; we don't support it yet.
Signed-off-by: Omar Sandoval
---
ctree.h | 13 +
1 file changed, 13 insertions(+)
diff --git a/ctree.h b/ctree.h
index d47f0ae..d67b852 100644
--- a/ctree.h
+++ b/ctree.h
@@ -467,6 +467,14 @@ struct btrfs_su
From: Omar Sandoval
Signed-off-by: Omar Sandoval
---
ctree.h | 6
extent-tree.c | 10 +++
free-space-tree.c | 87 +++
free-space-tree.h | 1 +
root-tree.c | 22 ++
5 files changed, 126 insertions(+)
From: Omar Sandoval
Signed-off-by: Omar Sandoval
---
Documentation/btrfs-man5.asciidoc | 43 +++
1 file changed, 25 insertions(+), 18 deletions(-)
diff --git a/Documentation/btrfs-man5.asciidoc
b/Documentation/btrfs-man5.asciidoc
index d12b059..3b003d3 1006
From: Omar Sandoval
Signed-off-by: Omar Sandoval
---
Documentation/btrfs-check.asciidoc | 14 +-
cmds-check.c | 34 +-
2 files changed, 34 insertions(+), 14 deletions(-)
diff --git a/Documentation/btrfs-check.asciidoc
b/Documen
At 11/14/2016 03:35 AM, Omar Sandoval wrote:
From: Omar Sandoval
If this flag is passed to open_ctree(), we'll clear the
FREE_SPACE_TREE_VALID compat_ro bit. The kernel will then reconstruct
the free space tree the next time the filesystem is mounted.
This feature is really helpful.
Especi
At 11/14/2016 03:35 AM, Omar Sandoval wrote:
From: Omar Sandoval
Signed-off-by: Omar Sandoval
Only small nits about the BUG_ON() and return value.
Despite that, feel free to add my reviewed-by:
Reviewed-by: Qu Wenruo
---
ctree.h | 6
extent-tree.c | 10 +++
free
At 11/14/2016 03:35 AM, Omar Sandoval wrote:
From: Omar Sandoval
Signed-off-by: Omar Sandoval
Reviewed-by: Qu Wenruo
---
Documentation/btrfs-check.asciidoc | 14 +-
cmds-check.c | 34 +-
2 files changed, 34 insertions(+),
At 11/12/2016 04:22 AM, Liu Bo wrote:
On Tue, Oct 11, 2016 at 02:47:42PM +0800, Wang Xiaoguang wrote:
If we use mount option "-o max_inline=sectorsize", say 4096, indeed
even for a fresh fs, say nodesize is 16k, we can not make the first
4k data completely inline, I found this conditon causing
This patchset can be fetched from github:
https://github.com/adam900710/linux.git wang_dedupe_latest
This version is just another update mainly related to ENOSPC fix,
rebased to Chris' for-linus-4.9 branch.
The main part is the ENOSPC fix, which is first exposed in dedupe
development, and thanks
From: Wang Xiaoguang
Introduce the header for btrfs in-band(write time) de-duplication
framework and needed header.
The new de-duplication framework is going to support 2 different dedupe
methods and 1 dedupe hash.
Signed-off-by: Qu Wenruo
Signed-off-by: Wang Xiaoguang
---
fs/btrfs/ctree.h
From: Wang Xiaoguang
When testing btrfs compression, sometimes we got ENOSPC error, though fs
still has much free space, xfstests generic/171, generic/172, generic/173,
generic/174, generic/175 can reveal this bug in my test environment when
compression is enabled.
After some debuging work, we f
From: Wang Xiaoguang
Introduce type based metadata reserve parameter for delalloc space
reservation/freeing function.
The problem we are going to solve is, btrfs use different max extent
size for different mount options.
For compression, the max extent size is 128K, while for non-compress write
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