[RFC PATCH 00/25] Add quota supporting in ubifs
Dongsheng Yang
yangds.fnst at cn.fujitsu.com
Tue Jul 21 17:56:30 PDT 2015
On 07/21/2015 04:58 PM, Jan Kara wrote:
> Hello,
>
> On Tue 21-07-15 16:37:31, 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.
>
> Well, the patches for cdev handling are more for Al Viro as a VFS
> maintainer. I can give you some feedback but he is the final arbiter to
> decide whether those patches get merged. So please CC him in the next
> posting.
Thanx, will do it in next version.
>
> Honza
>
>>
>> Also you can get the code from:
>> https://github.com/yangdongsheng/linux.git ubifs_quota_v1
>>
>> My simple testing is shown as below:
>> [root at atest-guest linux_compile]# mount -t ubifs -o usrquota,grpquota /dev/ubi0_0 /mnt/ubifs/
>> [root at atest-guest linux_compile]# quotacheck -ug /mnt/ubifs
>> [root at atest-guest linux_compile]# quotaon /mnt/ubifs
>> [root at 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 at atest-guest linux_compile]# setquota root 10 10 3 3 /mnt/ubifs
>> [root at 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 at atest-guest linux_compile]# touch /mnt/ubifs/{1,11,111}
>> ubifs: warning, user file quota exceeded.
>> [root at 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 at atest-guest linux_compile]# rm -rf /mnt/ubifs/1*
>> [root at 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 at 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 at 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 at atest-guest linux_compile]# rm -rf /mnt/ubifs/data
>> [root at 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(-)
>>
>> --
>> 1.8.4.2
>>
>>
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