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| author |   Darrick J. Wong <darrick.wong@oracle.com> | 2016-08-03 11:36:07 +1000 |
|---|---|---|
| committer |   Dave Chinner <david@fromorbit.com> | 2016-08-03 11:36:07 +1000 |
| commit | 035e00acb5c719bd003639b90716a7e94e023b73 (patch) | |
| tree | bf4db815b139e959b9ecc06e35f4c1c8ddcb68ca /fs/xfs/libxfs/xfs_sb.c | |
| parent | xfs: introduce rmap extent operation stubs (diff) | |
| download | linux-dev-035e00acb5c719bd003639b90716a7e94e023b73.tar.xz linux-dev-035e00acb5c719bd003639b90716a7e94e023b73.zip | |
xfs: define the on-disk rmap btree format
Originally-From: Dave Chinner <dchinner@redhat.com>
Now we have all the surrounding call infrastructure in place, we can
start filling out the rmap btree implementation. Start with the
on-disk btree format; add everything needed to read, write and
manipulate rmap btree blocks. This prepares the way for adding the
btree operations implementation.
[darrick: record owner and offset info in rmap btree]
[darrick: fork, bmbt and unwritten state in rmap btree]
[darrick: flags are a separate field in xfs_rmap_irec]
[darrick: calculate maxlevels separately]
[darrick: move the 'unwritten' bit into unused parts of rm_offset]
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_sb.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_sb.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index 2194e5d4eea8..fb33e70e5c9a 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -37,6 +37,7 @@ #include "xfs_alloc_btree.h" #include "xfs_ialloc_btree.h" #include "xfs_log.h" +#include "xfs_rmap_btree.h" /* * Physical superblock buffer manipulations. Shared with libxfs in userspace. @@ -730,6 +731,11 @@ xfs_sb_mount_common( mp->m_bmap_dmnr[0] = mp->m_bmap_dmxr[0] / 2; mp->m_bmap_dmnr[1] = mp->m_bmap_dmxr[1] / 2; + mp->m_rmap_mxr[0] = xfs_rmapbt_maxrecs(mp, sbp->sb_blocksize, 1); + mp->m_rmap_mxr[1] = xfs_rmapbt_maxrecs(mp, sbp->sb_blocksize, 0); + mp->m_rmap_mnr[0] = mp->m_rmap_mxr[0] / 2; + mp->m_rmap_mnr[1] = mp->m_rmap_mxr[1] / 2; + mp->m_bsize = XFS_FSB_TO_BB(mp, 1); mp->m_ialloc_inos = (int)MAX((__uint16_t)XFS_INODES_PER_CHUNK, sbp->sb_inopblock); |