search for: qgroup

I''m trying to use this feature of qgroup: btrfs qgroup assign <srcid> <destid> <path> Assigns the lower level qgroup src to the higher level qgroup dest in the btrfs found in <path>. It is used to build qgroup hierarchies. However, I fail to understand how this feature should work, and I''m g...

btrfs-prog commit: 58a39524619f38d193b8adc3d57888ec07b612aa change the default output to binary prefix, and introduced a new option '--raw' to keep the traditional behaviour. This patch will add a check function to determine whether to add '--raw' option to 'btrfs show qgroup'. Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com> --- daemon/btrfs.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/daemon/btrfs.c b/daemon/btrfs.c index d4b3207..ddaf15b 100644 --- a/daemon/btrfs.c +++ b/daemon/btrfs.c @@ -1210,12 +1210,...

The kernel side for rescan, which is needed if you want to enable qgroup tracking on a non-empty volume. The first patch splits btrfs_qgroup_account_ref into readable ans reusable units. The second patch adds the rescan implementation (refer to its commit message for a description of the algorithm). The third patch starts an automatic rescan when qgroups are enabled. I...

From: Wang Shilong <wangsl-fnst@cn.fujitsu.com> This patch tries to stop users to create/destroy qgroup level 0, users can only create/destroy qgroup level more than 0. See the fact: a subvolume/snapshot qgroup was created automatically when creating subvolume/snapshot, so creating a qgroup level 0 can''t be a subvolume/snapshot qgroup, the only way to use it is that assigning subvolume/sna...

'btrfs qgroup show' used to output bytes in raw, but in btrfs-progs v3.18.2 it outputs bytes with suffix KiB, MiB or like by default, which causes error when parsing the output. Fix it by adding '--raw' to let 'btrfs qgroup show' output raw numbers always. Signed-off-by: Hu Tao <hutao@cn...

btrfs-prog commit: 58a39524619f38d193b8adc3d57888ec07b612aa change the default output to binary prefix, and introduced a new option '--raw' to keep the traditional behaviour. This patch will add a check function to determine whether to add '--raw' option to 'btrfs show qgroup'. Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com> --- daemon/btrfs.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/daemon/btrfs.c b/daemon/btrfs.c index d4b3207..fabb00b 100644 --- a/daemon/btrfs.c +++ b/daemon/btrfs.c @@ -1210,12 +121...

...a39524619f38d193b8adc3d57888ec07b612aa > change the default output to binary prefix, > and introduced a new option '--raw' > to keep the traditional behaviour. > > This patch will add a check function to determine > whether to add '--raw' option to 'btrfs show qgroup'. > > Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com> > --- > daemon/btrfs.c | 33 +++++++++++++++++++++++++++++++++ > 1 file changed, 33 insertions(+) > > diff --git a/daemon/btrfs.c b/daemon/btrfs.c > index d4b3207..ddaf15b 100644 > --- a/daemon/bt...

Hi, This series adds support to btrfs qgroup related commands, inclduing quota commands, and two leftover of subvolume commands. Regards, Hu Hu Tao (8): New API: btrfs_subvolume_get_default New API: btrfs_subvolume_show New API: btrfs_quota_enable New API: btrfs_quota_disable New API: btrfs_quota_rescan New API: btrfs_qgroup_lim...

btrfs_qgroup_remove removes a qgroup from its parent qgroup. Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> --- daemon/btrfs.c | 33 +++++++++++++++++++++++++++++++++ generator/actions.ml | 9 +++++++++ src/MAX_PROC_NR | 2 +- 3 files changed, 43 insertions(+), 1 deletion(-) diff --git a/dae...

btrfs_qgroup_remove removes a qgroup from its parent qgroup. Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> --- daemon/btrfs.c | 34 ++++++++++++++++++++++++++++++++++ generator/actions.ml | 19 +++++++++++++++++++ src/MAX_PROC_NR | 2 +- 3 files changed, 54 insertions(+), 1 deletion(-) diff...

...ten space is counted twice against the space usage numbers. Is this a bug, or did I something wrong? This is what I did: I create a subvolume and limit it to 4 MB, and create a 1000 KB file in the subvol: # btrfs subvol create s Create subvolume ''./s'' # btrfs qgroup limit 4m s # btrfs qgroup show ./ | grep 260 0/260 4096 4096 # dd if=/dev/zero of=s/file bs=1024 count=1000; sync # ls -lah s/file -rw-r--r--. 1 root root 1000K Apr 6 00:13 s/file # btrfs qgroup show ./ | grep 260 0/260 1028096 1028096 Then I overwrite the...

Hi, This is v3 series to add support to btrfs qgroup related commands, inclduing quota commands, and two leftover of subvolume commands. Regards, Hu changes: v3: - don't intialize fs_buf (patch 1) - check the return value of sysroot_path (patch 1) - check fs_buf rather than fs (patch 1) - fprintf (stderr,...) -> reply_with_error()...

btrfs_qgroup_assign adds a qgroup to a parent qgroup. Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> --- daemon/btrfs.c | 33 +++++++++++++++++++++++++++++++++ generator/actions.ml | 10 ++++++++++ src/MAX_PROC_NR | 2 +- 3 files changed, 44 insertions(+), 1 deletion(-) diff --git a/daemon/bt...

...freed when deleting snapshots. The current version is functionally incomplete, with the main missing feature being the initial scan and rescan of an existing filesystem. I put some effort into writing an introduction into the concepts and implementation which can be found at http://sensille.com/qgroups.pdf The purpose of getting it out in this early stage is to get as much input as possible, in regard to concepts, implementation and testing. The accompanying user mode parts will take some additional days to gather. Thanks, Arne Arne Jansen (18): btrfs: mark delayed refs as for cow btrfs:...

Hi, This is v2 series to add support to btrfs qgroup related commands, inclduing quota commands, and two leftover of subvolume commands. Regards, Hu changes: v2: - add tests for new APIs - combine btrfs_quota_enable and btrfs_quota_disable - following APIs changed to operate on Mountable_or_Path: btrfs_subvolume_get_default, btrfs_quota_e...

When replaying a log tree with qgroups enabled, tree_mod_log_rewind does a sanity-check of the number of items against the maximum possible number. It calculates that number with the nodesize of fs_root. Unfortunately fs_root is not yet set at this stage. So instead use the nodesize from tree_root, which is already initialized. Signed...

...39;s the ioctl call which returns EEXIST, the place to further track the problem down was into the kernel module, which assumes that the userspace tools are not generating the problem. Here is a high level traceback of the problem: ioctl.c:create_subvol() returns -EEXIST cgroup.c:btrfs_qgroup_inherit() returns -EEXIST qgroup.c:add_qgroup_item() returns -EEXIST ctree.c:btrfs_insert_empty_item() returns -EEXIST ctree.c:btrfs_search_slot() returns 0 ctree.c:key_search() returns 0 The problem appeared before our current kernel, which is a 3.8 version (along with Btrfs...

Not sure if it''s anything interesting - I had the following entry in dmesg a few days ago, on a server with 32 GB RAM. The system is still working fine. [1878432.675210] btrfs-qgroup-re: page allocation failure: order:5, mode:0x104050 [1878432.675319] CPU: 5 PID: 22251 Comm: btrfs-qgroup-re Not tainted 3.11.0-rc7 #2 [1878432.675417] Hardware name: System manufacturer System Product Name/P8H67-M PRO, BIOS 1106 10/17/2011 [1878432.675517] 0000000000104050 ffff88062a981948 ffffff...

On Friday 21 November 2014 13:17:58 Hu Tao wrote: > Parameter `qgroupid' is for adding the created subvolume to a qgroup. > > Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> > --- > daemon/btrfs.c | 10 +++++++++- > generator/actions.ml | 15 ++++++++------- > 2 files changed, 17 insertions(+), 8 deletions(-) > > diff --git a/d...

On Fri, Dec 12, 2014 at 03:03:22PM +0800, Hu Tao wrote: > Hi, > > This is v3 series to add support to btrfs qgroup related commands, inclduing > quota commands, and two leftover of subvolume commands. I really need to look at this in detail next week, especially the mount/umount helper functions in patch 01. However I did run the test suite, and it did pass, so that's a good sign. Rich. -- Richard J...