Hi Dmitry, Please check following linkage. It includes all the patches I've made for ext4 project quota. Unfortunately, multiple tools need to be patched, including 1) patch e2fsprogs 2) patch quota-tools 3) patch linux kernel 4) compile project_manage. Please let me know if there is any problem. Thanks, Li Xi On Wed, Sep 23, 2015 at 9:32 PM, Dmitry Monakhov <dmonakhov@xxxxxxxxxx> wrote: > Li Xi <pkuelelixi@xxxxxxxxx> writes: > >> Hi Jan Kara, >> >> Sorry, I forgot to mention that we run the xfstests for both XFS and >> Ext4 with and without these patches. And still, some (but not too >> many) of the tests fails, but the failed tests are the same no matter >> the patches are applied or not. And we didn't see any project quota >> related tests fails. > BTW. Where I can find userspace tools to play with this feature? >> >> Regards, >> Li Xi >> >> On Wed, Sep 23, 2015 at 8:31 PM, Jan Kara <jack@xxxxxxx> wrote: >>> On Sun 13-09-15 21:20:29, Li Xi wrote: >>>> The following patches propose an implementation of project quota >>>> support for ext4. A project is an aggregate of unrelated inodes >>>> which might scatter in different directories. Inodes that belong >>>> to the same project possess an identical identification i.e. >>>> 'project ID', just like every inode has its user/group >>>> identification. The following patches add project quota as >>>> supplement to the former uer/group quota types. >>> >>> With the last version of the patches, there was only one outstanding issue >>> and that was whether xfstests for XFS pass correctly (especially the >>> project quota related ones). Have you been able to verify this? >>> >>> Honza >>> >>>> >>>> The semantics of ext4 project quota is consistent with XFS. Each >>>> directory can have EXT4_INODE_PROJINHERIT flag set. When the >>>> EXT4_INODE_PROJINHERIT flag of a parent directory is not set, a >>>> newly created inode under that directory will have a default project >>>> ID (i.e. 0). And its EXT4_INODE_PROJINHERIT flag is not set either. >>>> When this flag is set on a directory, following rules will be kept: >>>> >>>> 1) The newly created inode under that directory will inherit both >>>> the EXT4_INODE_PROJINHERIT flag and the project ID from its parent >>>> directory. >>>> >>>> 2) Hard-linking a inode with different project ID into that directory >>>> will fail with errno EXDEV. >>>> >>>> 3) Renaming a inode with different project ID into that directory >>>> will fail with errno EXDEV. However, 'mv' command will detect this >>>> failure and copy the renamed inode to a new inode in the directory. >>>> Thus, this new inode will inherit both the project ID and >>>> EXT4_INODE_PROJINHERIT flag. >>>> >>>> 4) If the project quota of that ID is being enforced, statfs() on >>>> that directory will take the quotas as another upper limits along >>>> with the capacity of the file system, i.e. the total block/inode >>>> number will be the minimum of the quota limits and file system >>>> capacity. >>>> >>>> Changelog: >>>> * v15 <- v14: >>>> - Rebase to newest master branch of git repository (b0a1ea51b). >>>> * v14 <- v13: >>>> - Cleanup ioctl of setting project ID; >>>> - Do not check project quota inode number specially; >>>> - Check isize when extract project ID from disk; >>>> - Rebase to latest kernel (4.0.0) >>>> * v13 <- v12: >>>> - Update inode size check of project ID. >>>> * v12 <- v11: >>>> - Relax the permission check when setting project ID. >>>> * v11 <- v10: >>>> - Remove project quota mount option; >>>> - Fix permission check when setting project ID. >>>> * v10 <- v9: >>>> - Remove non-journaled project quota interface; >>>> - Only allow admin to read project quota info; >>>> - Cleanup FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR interface. >>>> * v9 <- v8: >>>> - Remove non-journaled project quota; >>>> - Rebase to newest dev branch of ext4 repository (3.19.0-rc3). >>>> * v8 <- v7: >>>> - Rebase to newest dev branch of ext4 repository (3.18.0_rc3). >>>> * v7 <- v6: >>>> - Map ext4 inode flags to xflags of struct fsxattr; >>>> - Add patch to cleanup ext4 inode flag definitions. >>>> * v6 <- v5: >>>> - Add project ID check for cross rename; >>>> - Remove patch of EXT4_IOC_GETPROJECT/EXT4_IOC_SETPROJECT ioctl >>>> * v5 <- v4: >>>> - Check project feature when set/get project ID; >>>> - Do not check project feature for project quota; >>>> - Add support of FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR. >>>> * v4 <- v3: >>>> - Do not check project feature when set/get project ID; >>>> - Use EXT4_MAXQUOTAS instead of MAXQUOTAS in ext4 patches; >>>> - Remove unnecessary change of fs/quota/dquot.c; >>>> - Remove CONFIG_QUOTA_PROJECT. >>>> * v3 <- v2: >>>> - Add EXT4_INODE_PROJINHERIT semantics. >>>> * v2 <- v1: >>>> - Add ioctl interface for setting/getting project; >>>> - Add EXT4_FEATURE_RO_COMPAT_PROJECT; >>>> - Add get_projid() method in struct dquot_operations; >>>> - Add error check of ext4_inode_projid_set/get(). >>>> >>>> v14: http://article.gmane.org/gmane.linux.kernel.api/10345 >>>> v13: http://www.spinics.net/lists/linux-fsdevel/msg85205.html >>>> v12: http://www.spinics.net/lists/linux-fsdevel/msg84905.html >>>> v11: http://www.spinics.net/lists/linux-ext4/msg47450.html >>>> v10: http://www.spinics.net/lists/linux-ext4/msg47413.html >>>> v9: http://www.spinics.net/lists/linux-ext4/msg47326.html >>>> v8: http://www.spinics.net/lists/linux-ext4/msg46545.html >>>> v7: http://www.spinics.net/lists/linux-fsdevel/msg80404.html >>>> v6: http://www.spinics.net/lists/linux-fsdevel/msg80022.html >>>> v5: http://www.spinics.net/lists/linux-api/msg04840.html >>>> v4: http://lwn.net/Articles/612972/ >>>> v3: http://www.spinics.net/lists/linux-ext4/msg45184.html >>>> v2: http://www.spinics.net/lists/linux-ext4/msg44695.html >>>> v1: http://article.gmane.org/gmane.comp.file-systems.ext4/45153 >>>> >>>> Any comments or feedbacks are appreciated. >>>> >>>> Regards, >>>> - Li Xi >>>> >>>> Li Xi (4): >>>> ext4: adds project ID support >>>> ext4: adds project quota support >>>> ext4: adds FS_IOC_FSSETXATTR/FS_IOC_FSGETXATTR interface support >>>> ext4: cleanup inode flag definitions >>>> >>>> fs/ext4/ext4.h | 85 +++++++---- >>>> fs/ext4/ialloc.c | 7 + >>>> fs/ext4/inode.c | 28 ++++ >>>> fs/ext4/ioctl.c | 367 ++++++++++++++++++++++++++++++++++++----------- >>>> fs/ext4/namei.c | 19 +++ >>>> fs/ext4/super.c | 57 +++++++- >>>> fs/xfs/libxfs/xfs_fs.h | 47 +++---- >>>> include/uapi/linux/fs.h | 33 +++++ >>>> 8 files changed, 490 insertions(+), 153 deletions(-) >>>> >>> -- >>> Jan Kara <jack@xxxxxxxx> >>> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
