diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_trans_space.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_trans_space.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_trans_space.h b/fs/xfs/libxfs/xfs_trans_space.h index 50332be34388..87b31c69a773 100644 --- a/fs/xfs/libxfs/xfs_trans_space.h +++ b/fs/xfs/libxfs/xfs_trans_space.h @@ -17,6 +17,13 @@ /* Adding one rmap could split every level up to the top of the tree. */ #define XFS_RMAPADD_SPACE_RES(mp) ((mp)->m_rmap_maxlevels) +/* + * Note that we historically set m_rmap_maxlevels to 9 when reflink is enabled, + * so we must preserve this behavior to avoid changing the transaction space + * reservations and minimum log size calculations for existing filesystems. + */ +#define XFS_OLD_REFLINK_RMAP_MAXLEVELS 9 + /* Blocks we might need to add "b" rmaps to a tree. */ #define XFS_NRMAPADD_SPACE_RES(mp, b)\ (((b + XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) - 1) / \ @@ -74,7 +81,7 @@ #define XFS_DIOSTRAT_SPACE_RES(mp, v) \ (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v)) #define XFS_GROWFS_SPACE_RES(mp) \ - (2 * (mp)->m_ag_maxlevels) + (2 * (mp)->m_alloc_maxlevels) #define XFS_GROWFSRT_SPACE_RES(mp,b) \ ((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK)) #define XFS_LINK_SPACE_RES(mp,nl) \ |