xfs: add a lockdep class key for rtgroup inodes

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Add a dynamic lockdep class key for rtgroup inodes.  This will enable
lockdep to deduce inconsistencies in the rtgroup metadata ILOCK locking
order.  Each class can have 8 subclasses, and for now we will only have
2 inodes per group.  This enables rtgroup order and inode order checks
when nesting ILOCKs.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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Darrick J. Wong 2024-11-03 20:19:05 -08:00

parent 0e4875b3fb

commit c29237a65c

1 changed files with 52 additions and 0 deletions

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fs/xfs/libxfs/xfs_rtgroup.c

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