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| author |   Darrick J. Wong <darrick.wong@oracle.com> | 2019-04-25 18:26:22 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-04-26 12:28:55 -0700 |
| commit | 9fe82b8c422b5d9e9011bc08e27b9044936d945f (patch) | |
| tree | 6285e6e1577fa04969cbb6e1a5630c4c72266e34 /fs/xfs/xfs_mount.h | |
| parent | xfs: fix broken bhold behavior in xrep_roll_ag_trans (diff) | |
| download | wireguard-linux-9fe82b8c422b5d9e9011bc08e27b9044936d945f.tar.xz wireguard-linux-9fe82b8c422b5d9e9011bc08e27b9044936d945f.zip | |
xfs: track delayed allocation reservations across the filesystem
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>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_mount.h')
| -rw-r--r-- | fs/xfs/xfs_mount.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 14fba76ab811..c81a5cd7c228 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -81,6 +81,12 @@ typedef struct xfs_mount { struct percpu_counter m_icount; /* allocated inodes counter */ struct percpu_counter m_ifree; /* free inodes counter */ struct percpu_counter m_fdblocks; /* free block counter */ + /* + * Count of data device blocks reserved for delayed allocations, + * including indlen blocks. Does not include allocated CoW staging + * extents or anything related to the rt device. + */ + struct percpu_counter m_delalloc_blks; struct xfs_buf *m_sb_bp; /* buffer for superblock */ char *m_fsname; /* filesystem name */ @@ -475,5 +481,6 @@ int xfs_zero_extent(struct xfs_inode *ip, xfs_fsblock_t start_fsb, struct xfs_error_cfg * xfs_error_get_cfg(struct xfs_mount *mp, int error_class, int error); void xfs_force_summary_recalc(struct xfs_mount *mp); +void xfs_mod_delalloc(struct xfs_mount *mp, int64_t delta); #endif /* __XFS_MOUNT_H__ */ |