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Move it to the xfs_ino_geometry > structure and stop calculating it on every call to > xfs_default_attroffset(). > > Signed-off-by: Dave Chinner > Reviewed-by: Christoph Hellwig Ok, makes sense Reviewed-by: Allison Henderson > --- > fs/xfs/libxfs/xfs_bmap.c | 21 ++++++++++----------- > fs/xfs/libxfs/xfs_bmap.h | 1 + > fs/xfs/libxfs/xfs_shared.h | 4 ++++ > fs/xfs/xfs_mount.c | 14 +++++++++++++- > 4 files changed, 28 insertions(+), 12 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > index 414882ebcc8e..f937d3f05bc7 100644 > --- a/fs/xfs/libxfs/xfs_bmap.c > +++ b/fs/xfs/libxfs/xfs_bmap.c > @@ -94,6 +94,15 @@ xfs_bmap_compute_maxlevels( > mp->m_bm_maxlevels[whichfork] = level; > } > > +unsigned int > +xfs_bmap_compute_attr_offset( > + struct xfs_mount *mp) > +{ > + if (mp->m_sb.sb_inodesize == 256) > + return XFS_LITINO(mp) - XFS_BMDR_SPACE_CALC(MINABTPTRS); > + return XFS_BMDR_SPACE_CALC(6 * MINABTPTRS); > +} > + > STATIC int /* error */ > xfs_bmbt_lookup_eq( > struct xfs_btree_cur *cur, > @@ -192,19 +201,9 @@ uint > xfs_default_attroffset( > struct xfs_inode *ip) > { > - struct xfs_mount *mp = ip->i_mount; > - uint offset; > - > if (ip->i_df.if_format == XFS_DINODE_FMT_DEV) > return roundup(sizeof(xfs_dev_t), 8); > - > - if (mp->m_sb.sb_inodesize == 256) > - offset = XFS_LITINO(mp) - XFS_BMDR_SPACE_CALC(MINABTPTRS); > - else > - offset = XFS_BMDR_SPACE_CALC(6 * MINABTPTRS); > - > - ASSERT(offset < XFS_LITINO(mp)); > - return offset; > + return M_IGEO(ip->i_mount)->attr_fork_offset; > } > > /* > diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h > index 6747e97a7949..a49df4092c30 100644 > --- a/fs/xfs/libxfs/xfs_bmap.h > +++ b/fs/xfs/libxfs/xfs_bmap.h > @@ -185,6 +185,7 @@ static inline bool xfs_bmap_is_written_extent(struct xfs_bmbt_irec *irec) > > void xfs_trim_extent(struct xfs_bmbt_irec *irec, xfs_fileoff_t bno, > xfs_filblks_t len); > +unsigned int xfs_bmap_compute_attr_offset(struct xfs_mount *mp); > int xfs_bmap_add_attrfork(struct xfs_inode *ip, int size, int rsvd); > int xfs_bmap_set_attrforkoff(struct xfs_inode *ip, int size, int *version); > void xfs_bmap_local_to_extents_empty(struct xfs_trans *tp, > diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h > index 8c61a461bf7b..782fdd08f759 100644 > --- a/fs/xfs/libxfs/xfs_shared.h > +++ b/fs/xfs/libxfs/xfs_shared.h > @@ -176,8 +176,12 @@ struct xfs_ino_geometry { > > unsigned int agino_log; /* #bits for agino in inum */ > > + /* precomputed default inode attribute fork offset */ > + unsigned int attr_fork_offset; > + > /* precomputed value for di_flags2 */ > uint64_t new_diflags2; > + > }; > > #endif /* __XFS_SHARED_H__ */ > diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c > index 1c97b155a8ee..cb1e2c4702c3 100644 > --- a/fs/xfs/xfs_mount.c > +++ b/fs/xfs/xfs_mount.c > @@ -675,6 +675,18 @@ xfs_unmount_flush_inodes( > xfs_health_unmount(mp); > } > > +static void > +xfs_mount_setup_inode_geom( > + struct xfs_mount *mp) > +{ > + struct xfs_ino_geometry *igeo = M_IGEO(mp); > + > + igeo->attr_fork_offset = xfs_bmap_compute_attr_offset(mp); > + ASSERT(igeo->attr_fork_offset < XFS_LITINO(mp)); > + > + xfs_ialloc_setup_geometry(mp); > +} > + > /* > * This function does the following on an initial mount of a file system: > * - reads the superblock from disk and init the mount struct > @@ -758,7 +770,7 @@ xfs_mountfs( > xfs_alloc_compute_maxlevels(mp); > xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK); > xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK); > - xfs_ialloc_setup_geometry(mp); > + xfs_mount_setup_inode_geom(mp); > xfs_rmapbt_compute_maxlevels(mp); > xfs_refcountbt_compute_maxlevels(mp); > >