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xfs: precalculate cluster alignment in inodes and blocks

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Store the inode cluster alignment information in units of inodes and
blocks in the mount data so that we don't have to keep recalculating
them.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Darrick J. Wong
2018-12-12 08:46:25 -08:00
parent 83dcdb4469
commit c1b4a321ed
5 changed files with 11 additions and 8 deletions
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2
fs/xfs/xfs_mount.c
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@@ -800,6 +800,8 @@ xfs_mountfs(
}
mp->m_blocks_per_cluster = xfs_icluster_size_fsb(mp);
mp->m_inodes_per_cluster = XFS_FSB_TO_INO(mp, mp->m_blocks_per_cluster);
mp->m_cluster_align = xfs_ialloc_cluster_alignment(mp);
mp->m_cluster_align_inodes = XFS_FSB_TO_INO(mp, mp->m_cluster_align);
/*
* If enabled, sparse inode chunk alignment is expected to match the