diff options
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 0ad025e7f3cf..7daafe064af8 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -89,6 +89,13 @@ typedef struct xfs_mount { int m_logbsize; /* size of each log buffer */ uint m_rsumlevels; /* rt summary levels */ uint m_rsumsize; /* size of rt summary, bytes */ + /* + * Optional cache of rt summary level per bitmap block with the + * invariant that m_rsum_cache[bbno] <= the minimum i for which + * rsum[i][bbno] != 0. Reads and writes are serialized by the rsumip + * inode lock. + */ + uint8_t *m_rsum_cache; struct xfs_inode *m_rbmip; /* pointer to bitmap inode */ struct xfs_inode *m_rsumip; /* pointer to summary inode */ struct xfs_inode *m_rootip; /* pointer to root directory */ |