Add infrastructure for supporting get_nextdqblk() callback for VFS quotas. Translate the operation into a callback to appropriate filesystem and consequently to quota format callback. Signed-off-by: Jan Kara <jack@suse.cz>
Q_XGETNEXTQUOTA is exactly like Q_XGETQUOTA, except that it will return quota information for the id equal to or greater than the id requested. In other words, if the requested id has no quota, the command will return quota information for the next higher id which does have a quota set. If no higher id has an active quota, -ESRCH is returned. This allows filesystems to do efficient iteration in kernelspace, much like extN filesystems do in userspace when asked to report all active quotas. The patch adds a d_id field to struct qc_dqblk so that we can pass back the id of the quota which was found, and return it to userspace. Today, filesystems such as XFS require getpwent-style iterations, and for systems which have i.e. LDAP backends, this can be very slow, or even impossible if iteration is not allowed in the configuration. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Dave Chinner <david@fromorbit.com>
This patch adds support for a new quota type PRJQUOTA for project quota enforcement. Also a new method get_projid() is added into dquot_operations structure. Signed-off-by: Li Xi <lixi@ddn.com> Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Jan Kara <jack@suse.cz>
Flags in struct quota_state keep flags for each quota type and some common flags. This patch reorders typed flags: Before: 0 USRQUOTA DQUOT_USAGE_ENABLED 1 USRQUOTA DQUOT_LIMITS_ENABLED 2 USRQUOTA DQUOT_SUSPENDED 3 GRPQUOTA DQUOT_USAGE_ENABLED 4 GRPQUOTA DQUOT_LIMITS_ENABLED 5 GRPQUOTA DQUOT_SUSPENDED 6 DQUOT_QUOTA_SYS_FILE 7 DQUOT_NEGATIVE_USAGE After: 0 USRQUOTA DQUOT_USAGE_ENABLED 1 GRPQUOTA DQUOT_USAGE_ENABLED 2 USRQUOTA DQUOT_LIMITS_ENABLED 3 GRPQUOTA DQUOT_LIMITS_ENABLED 4 USRQUOTA DQUOT_SUSPENDED 5 GRPQUOTA DQUOT_SUSPENDED 6 DQUOT_QUOTA_SYS_FILE 7 DQUOT_NEGATIVE_USAGE Now we can get bitmap of all enabled/suspended quota types without loop. For example suspended: (flags / DQUOT_SUSPENDED) & ((1 << MAXQUOTAS) - 1). add/remove: 0/1 grow/shrink: 3/11 up/down: 56/-215 (-159) function old new delta __dquot_initialize 423 447 +24 dquot_transfer 181 197 +16 dquot_alloc_inode 286 302 +16 dquot_reclaim_space_nodirty 316 313 -3 dquot_claim_space_nodirty 314 311 -3 dquot_resume 286 281 -5 dquot_free_inode 332 324 -8 __dquot_alloc_space 500 492 -8 dquot_disable 1944 1929 -15 dquot_quota_enable 252 236 -16 __dquot_free_space 750 734 -16 dquot_writeback_dquots 625 608 -17 __dquot_transfer 1186 1154 -32 dquot_quota_sync 299 261 -38 dquot_active.isra 54 - -54 Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Jan Kara <jack@suse.cz>
Change ->set_info to take new qc_info structure which contains all the necessary information both for XFS and VFS. Convert Q_SETINFO handler to use this structure. Signed-off-by: Jan Kara <jack@suse.cz>
These callbacks are now unused. Remove them. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
Create new internal interface for getting information about quota which contains everything needed for both VFS quotas and XFS quotas. Make VFS use this and hook it up to Q_GETINFO. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
Currently maximum space limit quota format supports is in blocks however since we store space limits in bytes, this is somewhat confusing. So store the maximum limit in bytes as well. Also rename the field to match the new unit and related inode field to match the new naming scheme. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
There are no more users for quota_on_meta callback. Just remove it. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>