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Message-ID: <CAPTn0cBj4Zpyov0TjcaKN6HKbrqvZHw0Zv8tjYcJFY8UFk_ETg@mail.gmail.com> Date: Wed, 23 Sep 2015 21:58:27 +0800 From: Li Xi <pkuelelixi@...il.com> To: Dmitry Monakhov <dmonakhov@...nvz.org> Cc: Jan Kara <jack@...e.cz>, "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>, Ext4 Developers List <linux-ext4@...r.kernel.org>, "linux-api@...r.kernel.org" <linux-api@...r.kernel.org>, "Theodore Ts'o" <tytso@....edu>, Andreas Dilger <adilger@...ger.ca>, "viro@...iv.linux.org.uk" <viro@...iv.linux.org.uk>, "hch@...radead.org" <hch@...radead.org> Subject: Re: [v15 0/4] ext4: add project quota support Sorry, the linkage was missing. https://github.com/ddn-lixi/project_quota_ext4_utils On Wed, Sep 23, 2015 at 9:57 PM, Li Xi <pkuelelixi@...il.com> wrote: > 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@...nvz.org> wrote: >> Li Xi <pkuelelixi@...il.com> 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@...e.cz> 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@...e.com> >>>> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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