Hi,
When send process requires memory allocation, shrinker may be triggered
due to insufficient memory.
Then evict_inode gets called when inode is dropped, and this function
may need to start transaction.
However, the journal_info is already points to BTRFS_SEND_TRANS_STUB, it
passed the if co
Currently we set QUOTA_ENABLED flags and then queue rescan work, and
then commit current transaction.
The behavior could lead to missing quota accounts as quota rescan only
scan committed root, thus it won't account modification in current
transaction.
While for current transaction, we rely btrfs_
The function will create lost+found directory, link the deleted
subvolume specified by the subvol_id to the directory, update the
information of root_item and cleanup the associated orphan item.
Signed-off-by: Lu Fengqi
Reviewed-by: Qu Wenruo
---
V3:
pass btrfs_fs_info instead of btrfs_root;
add
Add undelete-subvol to btrfs-completion, and update btrfs-rescue
documentation to introduce undelete-subvol.
Signed-off-by: Lu Fengqi
---
V2: just add -s option documentation.
Documentation/btrfs-rescue.asciidoc | 12
btrfs-completion| 2 +-
2 files changed, 13
The testcase checks the functionality of "btrfs rescue undelete-subvol",
including recovering an intact subvolume, and handling correctly
incomplete subvolume.
Signed-off-by: Lu Fengqi
---
V3:
rename testcase to 031-undelete-subvol;
rename images and add image description to test.sh.
V2: add shel
Since we have an existing function to find free inode index, we can
reuse it here.
Signed-off-by: Lu Fengqi
Reviewed-by: Qu Wenruo
---
V3: add Reviewed-by from Qu Wenruo.
inode.c | 27 +++
1 file changed, 7 insertions(+), 20 deletions(-)
diff --git a/inode.c b/inode.c
Add btrfs_del_orphan_item for the later subvolume undelete.
Signed-off-by: Lu Fengqi
---
ctree.h | 2 ++
inode.c | 30 ++
2 files changed, 32 insertions(+)
diff --git a/ctree.h b/ctree.h
index 1fef37c93485..46a1dbfd2f27 100644
--- a/ctree.h
+++ b/ctree.h
@@ -2796,6
The function is used to determine whether the subvolume is intact.
Signed-off-by: Lu Fengqi
---
V3:
add SPDX-License-Identifier;
pass btrfs_fs_info instead of btrfs_root;
use btrfs_read_fs_root instead of manually search;
remove empty header file.
Makefile | 3 ++-
undelete-subvol.c |
This patchset will add undelete-subvol subcommand for btrfs rescue.
Patchset can be fetched from github:
https://github.com/littleroad/btrfs-progs.git undelete
v2->v3: fixed some issues pointed out by Qu.
v1->v2: add -s option to allow user specify the subvolume which will be
recovered.
The firs
The function will find the root_item specified by the subvol_id
and clear the BTRFS_ROOT_SUBVOL_DEAD flag.
Signed-off-by: Lu Fengqi
---
V3:
remove btrfs_root argument;
don't modify root_refs.
ctree.h | 1 +
undelete-subvol.c | 51 +++
2 fil
The original btrfs_mksubvol is too specific to specify the directory that
the subvolume will link to. Furthermore, in this transaction, we don't only
need to create root_ref/dir-item, but also update the flags of root_item.
Extract a generic btrfs_link_subvol that allow the caller pass a trans
argu
Add the undelete-subvol subcommand for btrfs rescue. This subcommand is
used to recover deleted subvolume left intact on the device.
Signed-off-by: Lu Fengqi
---
V3: remove OPEN_CTREE_PARTIAL flag.
V2: add -s option to specify subvol_id.
cmds-rescue.c | 69 ++
The function default will traverse the all orphan items on the tree root,
and recover the all intact subvolumes. If subvol_id is specified, then only
the corresponding subvolume will be recovered.
Signed-off-by: Lu Fengqi
---
V3:
pass btrfs_fs_info instead of btrfs_root;
rename btrfs_undelete_int
On 04/18/2018 01:42 PM, Qu Wenruo wrote:
On 2018年03月27日 15:06, Lu Fengqi wrote:
The testcase checks the functionality of "btrfs rescue undelete-subvol",
including recovering an intact subvolume, and handling correctly
incomplete subvolume.
Signed-off-by: Lu Fengqi
---
v2: add shell quoting t
On 2018年05月07日 10:03, Lu Fengqi wrote:
> On Wed, Apr 18, 2018 at 01:12:10PM +0800, Qu Wenruo wrote:
>>
>>
>> On 2018年03月27日 15:06, Lu Fengqi wrote:
>>> The function is used to determine whether the subvolume is intact.
>>>
>>> Signed-off-by: Lu Fengqi
>>> ---
>>> Makefile | 3 ++-
>>>
On 04/18/2018 01:32 PM, Qu Wenruo wrote:
On 2018年03月27日 15:06, Lu Fengqi wrote:
Add the undelete-subvol subcommand for btrfs rescue. This subcommand is
used to recover deleted subvolume left intact on the device.
Signed-off-by: Lu Fengqi
---
v2: add -s option to specify subvol_id.
cmds-re
On Wed, Apr 18, 2018 at 01:28:23PM +0800, Qu Wenruo wrote:
On 2018年03月27日 15:06, Lu Fengqi wrote:
The function default will traverse the all orphan items on the tree root,
and recover the all intact subvolumes. If subvol_id is specified, then only
the corresponding subvolume will be recovered.
On 04/18/2018 01:21 PM, Qu Wenruo wrote:
On 2018年03月27日 15:06, Lu Fengqi wrote:
The function will create lost+found directory, link the deleted
subvolume specified by the subvol_id to the directory, update the
information of root_item and cleanup the associated orphan item.
Signed-off-by: Lu
On Wed, Apr 18, 2018 at 01:16:55PM +0800, Qu Wenruo wrote:
On 2018年03月27日 15:06, Lu Fengqi wrote:
The function will find the root_item specified by the subvol_id,
clear the BTRFS_ROOT_SUBVOL_DEAD flag and set root_refs to one.
Sorry I didn't point it out in btrfs_link_subvol() patch, but at
On Wed, Apr 18, 2018 at 01:12:10PM +0800, Qu Wenruo wrote:
On 2018年03月27日 15:06, Lu Fengqi wrote:
The function is used to determine whether the subvolume is intact.
Signed-off-by: Lu Fengqi
---
Makefile | 3 ++-
undelete-subvol.c | 53 ++
On Wed, Apr 18, 2018 at 01:02:43PM +0800, Qu Wenruo wrote:
On 2018年03月27日 15:06, Lu Fengqi wrote:
The original btrfs_mksubvol is too specific to specify the directory that
the subvolume will link to. Furthermore, in this transaction, we don't only
need to create root_ref/dir-item, but also upd
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