Re: [RFC PATCH 00/25] Add quota supporting in ubifs

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Hi Jan,
	I met an error message in my testing:
[104236.956171] __quota_error: 3600 callbacks suppressed
[104236.958772] Quota error (device ubifs): free_dqentry: Quota structure has offset to other block (0) than it should (5)

What does that mean? What's the kind of error? Could you give me
a clue for it?

Thanx a lot
Yang


On 07/21/2015 04:37 PM, Dongsheng Yang wrote:
Hi Atem, Richard and others,
	This is a patchset to add quota supporting in ubifs.
[1/25] - [7/25] are working to make quotactl to support filesystems
which are running on char device.

Others are about making ubifs to support quota
Please help to review or test it. Any comment is welcome :).

Hi Jan Kara,
	I am not sure I am using the quota APIs correctly, please
help to correct me if I am wrong.

Also you can get the code from:
https://github.com/yangdongsheng/linux.git  ubifs_quota_v1

	My simple testing is shown as below:
[root@atest-guest linux_compile]# mount -t ubifs -o usrquota,grpquota /dev/ubi0_0 /mnt/ubifs/
[root@atest-guest linux_compile]# quotacheck -ug /mnt/ubifs
[root@atest-guest linux_compile]# quotaon /mnt/ubifs
[root@atest-guest linux_compile]# repquota /mnt/ubifs
*** Report for user quotas on device /dev/ubi0_0
Block grace time: 7days; Inode grace time: 7days
                         Block limits                File limits
User            used    soft    hard  grace    used  soft  hard  grace
----------------------------------------------------------------------
root      --       0       0       0              1     0     0
[root@atest-guest linux_compile]# setquota root 10 10 3 3 /mnt/ubifs
[root@atest-guest linux_compile]# repquota /mnt/ubifs
*** Report for user quotas on device /dev/ubi0_0
Block grace time: 7days; Inode grace time: 7days
                         Block limits                File limits
User            used    soft    hard  grace    used  soft  hard  grace
----------------------------------------------------------------------
root      --       0      10      10              1     3     3
[root@atest-guest linux_compile]# touch /mnt/ubifs/{1,11,111}
ubifs: warning, user file quota exceeded.
[root@atest-guest linux_compile]# repquota /mnt/ubifs
*** Report for user quotas on device /dev/ubi0_0
Block grace time: 7days; Inode grace time: 7days
                         Block limits                File limits
User            used    soft    hard  grace    used  soft  hard  grace
----------------------------------------------------------------------
root      -+       0      10      10              4     3     3  7days
[root@atest-guest linux_compile]# rm -rf /mnt/ubifs/1*
[root@atest-guest linux_compile]# repquota /mnt/ubifs
*** Report for user quotas on device /dev/ubi0_0
Block grace time: 7days; Inode grace time: 7days
                         Block limits                File limits
User            used    soft    hard  grace    used  soft  hard  grace
----------------------------------------------------------------------
root      --       0      10      10              1     3     3
[root@atest-guest linux_compile]# dd if=/dev/urandom of=/mnt/ubifs/data bs=1K count=11
ubifs: warning, user block quota exceeded.
11+0 records in
11+0 records out
11264 bytes (11 kB) copied, 0.216498 s, 52.0 kB/s
[root@atest-guest linux_compile]# repquota /mnt/ubifs
*** Report for user quotas on device /dev/ubi0_0
Block grace time: 7days; Inode grace time: 7days
                         Block limits                File limits
User            used    soft    hard  grace    used  soft  hard  grace
----------------------------------------------------------------------
root      +-      11      10      10  7days       2     3     3
[root@atest-guest linux_compile]# rm -rf /mnt/ubifs/data
[root@atest-guest linux_compile]# repquota /mnt/ubifs
*** Report for user quotas on device /dev/ubi0_0
Block grace time: 7days; Inode grace time: 7days
                         Block limits                File limits
User            used    soft    hard  grace    used  soft  hard  grace
----------------------------------------------------------------------
root      --       0      10      10              1     3     3


Dongsheng Yang (25):
   fs: introduce a ->s_cdev field into struct super_block
   ubi: introduce a interface to get cdev in ubi_volume
   ubifs: fill sb->s_cdev in ubifs_fill_super()
   fs: super: introduce the functions to get super by cdev reference
   fs: char_dev: introduce lookup_cdev function to find cdev by name
   fs: dquot: skip invalidate_bdev if bdev is NULL
   fs: quota: make quota support fs which is running on char dev
   ubifs: fix a typo in comment of ubifs_budget_req
   ubifs: extend budget for blocks
   ubifs: fill ->s_dev in ubifs_fill_super
   ubifs: export read_block() from file.c
   ubifs: introduce quota related mount options
   ubifs: introduce a field named as budgeted to ubifs_inode
   ubifs: implement IO functions for quota files
   ubifs: disable quota in ubifs_put_super
   ubifs: write quota back in ubifs_sync
   ubifs: suspend & resume quota properly in ubifs_remount
   ubifs: record quota information about inode in ubifs_new_inode
   ubifs: free quota inode information in ubifs_evict_inode
   ubifs: alloc quota space in ubifs_write_begin
   ubifs: free quota space in do_truncation and unlink
   ubifs: adapt quota space informatin in do_setattr
   ubifs: transfer quota information in changing owner or group
   ubifs: implement ubifs_qctl_operations for quotactl
   ubifs: make ubifs to support quota

  drivers/mtd/ubi/kapi.c  |   6 +
  fs/char_dev.c           |  72 ++++++++++
  fs/quota/dquot.c        |   3 +-
  fs/quota/quota.c        |  30 +++--
  fs/super.c              |  45 +++++++
  fs/ubifs/budget.c       |   4 +
  fs/ubifs/debug.c        |   2 +
  fs/ubifs/dir.c          |  24 +++-
  fs/ubifs/file.c         |  56 +++++++-
  fs/ubifs/ioctl.c        |   1 +
  fs/ubifs/super.c        | 352 +++++++++++++++++++++++++++++++++++++++++++++++-
  fs/ubifs/ubifs.h        |  19 ++-
  include/linux/fs.h      |   5 +
  include/linux/mtd/ubi.h |   1 +
  14 files changed, 597 insertions(+), 23 deletions(-)


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