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xfs: keep sb_bad_features2 the same a sb_features2

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Whenever we update sb_features2, we need to update sb_bad_features2
so that they remain identical on disk. This prevents future mounts
or userspace utilities from getting confused over which features the
filesystem supports.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Dave Chinner 2014-05-20 07:41:43 +10:00 committed by Dave Chinner
parent f68a373525
commit 32bf1deae1
1 changed files with 2 additions and 0 deletions
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2
fs/xfs/xfs_sb.h
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@ -468,11 +468,13 @@ static inline void xfs_sb_version_addattr2(struct xfs_sb *sbp)
{
sbp->sb_versionnum |= XFS_SB_VERSION_MOREBITSBIT;
sbp->sb_features2 |= XFS_SB_VERSION2_ATTR2BIT;
sbp->sb_bad_features2 |= XFS_SB_VERSION2_ATTR2BIT;
}
static inline void xfs_sb_version_removeattr2(struct xfs_sb *sbp)
{
sbp->sb_features2 &= ~XFS_SB_VERSION2_ATTR2BIT;
sbp->sb_bad_features2 &= ~XFS_SB_VERSION2_ATTR2BIT;
if (!sbp->sb_features2)
sbp->sb_versionnum &= ~XFS_SB_VERSION_MOREBITSBIT;
}