Pull quota interface unification and misc cleanups from Jan Kara:
"The first part of the series unifying XFS and VFS quota interfaces.
This part unifies turning quotas on and off so quota-tools and
xfs_quota can be used to manage any filesystem. This is useful so
that userspace doesn't have to distinguish which filesystem it is
working with. As a result we can then easily reuse tests for project
quotas in XFS for ext4.
This also contains minor cleanups and fixes for udf, isofs, and ext3"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: (23 commits)
udf: remove bool assignment to 0/1
udf: use bool for done
quota: Store maximum space limit in bytes
quota: Remove quota_on_meta callback
ocfs2: Use generic helpers for quotaon and quotaoff
ext4: Use generic helpers for quotaon and quotaoff
quota: Add ->quota_{enable,disable} callbacks for VFS quotas
quota: Wire up ->quota_{enable,disable} callbacks into Q_QUOTA{ON,OFF}
quota: Split ->set_xstate callback into two
xfs: Remove some pointless quota checks
xfs: Remove some useless flags tests
xfs: Remove useless test
quota: Verify flags passed to Q_SETINFO
quota: Cleanup flags definitions
ocfs2: Move OLQF_CLEAN flag out of generic quota flags
quota: Don't store flags for v2 quota format
jbd: drop jbd_ENOSYS debug
udf: destroy sbi mutex in put_super
udf: Check length of extended attributes and allocation descriptors
udf: Remove repeated loads blocksize
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