tree dcb07d69af478430b88bd184e94d5db2680711b5
parent ba66afc6dbc6a92287d64cd0a9128a9ae71844c3
author Darrick J. Wong <darrick.wong@oracle.com> 1554771002 -0700
committer Darrick J. Wong <darrick.wong@oracle.com> 1555687611 -0700

xfs: track delayed allocation reservations across

Add a percpu counter to track the number of blocks directly reserved for
delayed allocations on the data device.  This counter (in contrast to
i_delayed_blks) does not track allocated CoW staging extents or anything
going on with the realtime device.  It will be used in the upcoming
summary counter scrub function to check the free block counts without
having to freeze the filesystem or walk all the inodes to find the
delayed allocations.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>