xfs: restore old agirotor behavior

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Prior to the removal of xfs_ialloc_next_ag, we would increment the agi
rotor and return the *old* value.  atomic_inc_return returns the new
value, which causes mkfs to allocate the root directory in AG 1.  Put
back the old behavior (at least for mkfs) by subtracting 1 here.

Fixes: 20a5eab49d ("xfs: convert xfs_ialloc_next_ag() to an atomic")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

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Darrick J. Wong 2023-02-17 15:44:25 -08:00

parent 60b730a40c

commit 6e2985c938

1 changed files with 2 additions and 1 deletions

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fs/xfs/libxfs/xfs_ialloc.c

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