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xfs: require both realtime inodes to mount

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Since mkfs always formats the filesystem with the realtime bitmap and
summary inodes immediately after the root directory, we should expect
that both of them are present and loadable, even if there isn't a
realtime volume attached.  There's no reason to skip this if rbmino ==
NULLFSINO; in fact, this causes an immediate crash if the there /is/ a
realtime volume and someone writes to it.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
This commit is contained in:
Darrick J. Wong 2018-12-12 15:18:52 -08:00
parent 355e353213
commit 64bafd2f1e
1 changed files with 1 additions and 3 deletions
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4
fs/xfs/xfs_rtalloc.c
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@ -1206,13 +1206,11 @@ xfs_rtmount_inodes(
xfs_sb_t *sbp;
sbp = &mp->m_sb;
if (sbp->sb_rbmino == NULLFSINO)
return 0;
error = xfs_iget(mp, NULL, sbp->sb_rbmino, 0, 0, &mp->m_rbmip);
if (error)
return error;
ASSERT(mp->m_rbmip != NULL);
ASSERT(sbp->sb_rsumino != NULLFSINO);
error = xfs_iget(mp, NULL, sbp->sb_rsumino, 0, 0, &mp->m_rsumip);
if (error) {
xfs_irele(mp->m_rbmip);