xfs: force small EFIs for reaping btree extents

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Introduce the concept of a defer ops barrier to separate consecutively
queued pending work items of the same type.  With a barrier in place,
the two work items will be tracked separately, and receive separate log
intent items.  The goal here is to prevent reaping of old metadata
blocks from creating unnecessarily huge EFIs that could then run the
risk of overflowing the scrub transaction.

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

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Darrick J. Wong 2023-12-06 18:41:00 -08:00

parent 6bb9ea8ecd

commit 3f3cec0310

3 changed files with 104 additions and 11 deletions

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107

fs/xfs/libxfs/xfs_defer.c

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3

fs/xfs/libxfs/xfs_defer.h

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5

fs/xfs/scrub/reap.c

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