xfs: check for unknown v5 feature bits in superblock write verifier

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Make sure we never try to write the superblock with unknown feature bits
set.  We checked those at mount time, so if they're set now then memory
is corrupt.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>

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This commit is contained in:

Darrick J. Wong 2018-07-30 16:45:35 -07:00

parent 69775fd15d

commit 9e037cb797

1 changed files with 34 additions and 1 deletions

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35

fs/xfs/libxfs/xfs_sb.c

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