xfs: cross-reference the realtime bitmap
While we're scrubbing various btrees, cross-reference the records with the other metadata. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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@ -1097,3 +1097,24 @@ xfs_verify_rtbno(
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{
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return rtbno < mp->m_sb.sb_rblocks;
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}
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/* Is the given extent all free? */
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int
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xfs_rtalloc_extent_is_free(
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struct xfs_mount *mp,
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struct xfs_trans *tp,
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xfs_rtblock_t start,
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xfs_extlen_t len,
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bool *is_free)
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{
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xfs_rtblock_t end;
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int matches;
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int error;
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error = xfs_rtcheck_range(mp, tp, start, len, 1, &end, &matches);
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if (error)
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return error;
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*is_free = matches;
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return 0;
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}
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@ -243,6 +243,9 @@ xfs_scrub_bmap_rt_extent_xref(
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{
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if (info->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
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return;
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xfs_scrub_xref_is_used_rt_space(info->sc, irec->br_startblock,
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irec->br_blockcount);
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}
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/* Cross-reference a single datadev extent record. */
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@ -98,3 +98,26 @@ xfs_scrub_rtsummary(
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/* XXX: implement this some day */
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return -ENOENT;
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}
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/* xref check that the extent is not free in the rtbitmap */
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void
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xfs_scrub_xref_is_used_rt_space(
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struct xfs_scrub_context *sc,
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xfs_rtblock_t fsbno,
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xfs_extlen_t len)
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{
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bool is_free;
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int error;
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xfs_ilock(sc->mp->m_rbmip, XFS_ILOCK_SHARED | XFS_ILOCK_RTBITMAP);
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error = xfs_rtalloc_extent_is_free(sc->mp, sc->tp, fsbno, len,
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&is_free);
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if (!xfs_scrub_should_check_xref(sc, &error, NULL))
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goto out_unlock;
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if (is_free)
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xfs_scrub_ino_xref_set_corrupt(sc, sc->mp->m_rbmip->i_ino,
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NULL);
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out_unlock:
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xfs_iunlock(sc->mp->m_rbmip, XFS_ILOCK_SHARED | XFS_ILOCK_RTBITMAP);
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}
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@ -142,5 +142,11 @@ void xfs_scrub_xref_is_cow_staging(struct xfs_scrub_context *sc,
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xfs_agblock_t bno, xfs_extlen_t len);
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void xfs_scrub_xref_is_not_shared(struct xfs_scrub_context *sc,
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xfs_agblock_t bno, xfs_extlen_t len);
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#ifdef CONFIG_XFS_RT
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void xfs_scrub_xref_is_used_rt_space(struct xfs_scrub_context *sc,
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xfs_rtblock_t rtbno, xfs_extlen_t len);
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#else
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# define xfs_scrub_xref_is_used_rt_space(sc, rtbno, len) do { } while (0)
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#endif
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#endif /* __XFS_SCRUB_SCRUB_H__ */
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@ -139,6 +139,9 @@ int xfs_rtalloc_query_all(struct xfs_trans *tp,
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xfs_rtalloc_query_range_fn fn,
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void *priv);
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bool xfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno);
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int xfs_rtalloc_extent_is_free(struct xfs_mount *mp, struct xfs_trans *tp,
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xfs_rtblock_t start, xfs_extlen_t len,
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bool *is_free);
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#else
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# define xfs_rtallocate_extent(t,b,min,max,l,f,p,rb) (ENOSYS)
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# define xfs_rtfree_extent(t,b,l) (ENOSYS)
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@ -148,6 +151,7 @@ bool xfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno);
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# define xfs_rtalloc_query_all(t,f,p) (ENOSYS)
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# define xfs_rtbuf_get(m,t,b,i,p) (ENOSYS)
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# define xfs_verify_rtbno(m, r) (false)
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# define xfs_rtalloc_extent_is_free(m,t,s,l,i) (ENOSYS)
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static inline int /* error */
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xfs_rtmount_init(
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xfs_mount_t *mp) /* file system mount structure */
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