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| author | Eric Sandeen <sandeen@redhat.com> | 2016-03-02 09:58:09 +1100 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-03-02 09:58:09 +1100 |
| commit | 12c3f05c7b592ae3bf2219392f1cbf252645cd79 (patch) | |
| tree | 84d13db49ec7de70cee1ae873c3f05e9e89b3fe2 /fs/xfs/xfs_mount.c | |
| parent | 5d518bd6cec6f921ee1be504094762496afb45fb (diff) | |
| download | linux-12c3f05c7b592ae3bf2219392f1cbf252645cd79.tar.bz2 | |
xfs: fix up inode32/64 (re)mount handling
inode32/inode64 allocator behavior with respect to mount, remount
and growfs is a little tricky.
The inode32 mount option should only enable the inode32 allocator
heuristics if the filesystem is large enough for 64-bit inodes to
exist. Today, it has this behavior on the initial mount, but a
remount with inode32 unconditionally changes the allocation
heuristics, even for a small fs.
Also, an inode32 mounted small filesystem should transition to the
inode32 allocator if the filesystem is subsequently grown to a
sufficient size. Today that does not happen.
This patch consolidates xfs_set_inode32 and xfs_set_inode64 into a
single new function, and moves the "is the maximum inode number big
enough to matter" test into that function, so it doesn't rely on the
caller to get it right - which remount did not do, previously.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_mount.c')
| -rw-r--r-- | fs/xfs/xfs_mount.c | 20 |
1 files changed, 1 insertions, 19 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index bb753b359bee..a773ef33f559 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -185,9 +185,6 @@ xfs_initialize_perag( xfs_agnumber_t index; xfs_agnumber_t first_initialised = 0; xfs_perag_t *pag; - xfs_agino_t agino; - xfs_ino_t ino; - xfs_sb_t *sbp = &mp->m_sb; int error = -ENOMEM; /* @@ -230,22 +227,7 @@ xfs_initialize_perag( radix_tree_preload_end(); } - /* - * If we mount with the inode64 option, or no inode overflows - * the legacy 32-bit address space clear the inode32 option. - */ - agino = XFS_OFFBNO_TO_AGINO(mp, sbp->sb_agblocks - 1, 0); - ino = XFS_AGINO_TO_INO(mp, agcount - 1, agino); - - if ((mp->m_flags & XFS_MOUNT_SMALL_INUMS) && ino > XFS_MAXINUMBER_32) - mp->m_flags |= XFS_MOUNT_32BITINODES; - else - mp->m_flags &= ~XFS_MOUNT_32BITINODES; - - if (mp->m_flags & XFS_MOUNT_32BITINODES) - index = xfs_set_inode32(mp, agcount); - else - index = xfs_set_inode64(mp, agcount); + index = xfs_set_inode_alloc(mp, agcount); if (maxagi) *maxagi = index; |