xfs: improve busy extent sorting

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Sort busy extents by the full block number instead of just the AGNO so
that we can issue consecutive discard requests that the block layer could
merge (although we'll need additional block layer fixes for fast devices).

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

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Christoph Hellwig 2017-02-07 14:07:57 -08:00 • committed by Darrick J. Wong

parent ebf5587261

commit 4669412981

1 changed files with 12 additions and 4 deletions

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fs/xfs/xfs_extent_busy.c

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