xfs: create a predicate to verify per-AG extents

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Create a predicate function to verify that a given agbno/blockcount pair
fit entirely within a single allocation group and don't suffer
mathematical overflows.  Refactor the existng open-coded logic; we're
going to add more calls to this function in the next patch.

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

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This commit is contained in:

Darrick J. Wong 2022-10-28 15:48:58 -07:00

parent f850995f60

commit b65e08f83b

7 changed files with 24 additions and 26 deletions

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15

fs/xfs/libxfs/xfs_ag.h

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6

fs/xfs/libxfs/xfs_alloc.c

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6

fs/xfs/libxfs/xfs_refcount.c

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9

fs/xfs/libxfs/xfs_rmap.c

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4

fs/xfs/scrub/alloc.c

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5

fs/xfs/scrub/ialloc.c

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5

fs/xfs/scrub/refcount.c

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