diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-11-03 10:34:42 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2017-11-06 11:53:39 -0800 |
| commit | f36bc228e1b94d9994915cba67588104ebe763ae (patch) | |
| tree | 67181994d0555b9c1a47fd1f6ae49fe08120c43f /fs/xfs | |
| parent | 42630361003461edd7607c1d459ab9d66ef97813 (diff) | |
xfs: pass an on-disk extent to xfs_bmbt_validate_extent
This prepares for getting rid of the current in-memory extent format.
At the end of the series we will change the calling convention again
to pass the xfs_bmbt_irec structure once it is available everywhere.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap.c | 6 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap_btree.h | 4 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_fork.c | 9 |
3 files changed, 9 insertions, 10 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 62270b871d06..8ce7bf19916f 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -1260,14 +1260,14 @@ xfs_iread_extents( frp = XFS_BMBT_REC_ADDR(mp, block, 1); for (j = 0; j < num_recs; j++, i++, frp++) { xfs_bmbt_rec_host_t *trp = xfs_iext_get_ext(ifp, i); - trp->l0 = be64_to_cpu(frp->l0); - trp->l1 = be64_to_cpu(frp->l1); - if (!xfs_bmbt_validate_extent(mp, whichfork, trp)) { + if (!xfs_bmbt_validate_extent(mp, whichfork, frp)) { XFS_ERROR_REPORT("xfs_bmap_read_extents(2)", XFS_ERRLEVEL_LOW, mp); error = -EFSCORRUPTED; goto out_brelse; } + trp->l0 = be64_to_cpu(frp->l0); + trp->l1 = be64_to_cpu(frp->l1); trace_xfs_read_extent(ip, i, state, _THIS_IP_); } xfs_trans_brelse(tp, bp); diff --git a/fs/xfs/libxfs/xfs_bmap_btree.h b/fs/xfs/libxfs/xfs_bmap_btree.h index 6f891eeb88f6..2fbfe2a24b15 100644 --- a/fs/xfs/libxfs/xfs_bmap_btree.h +++ b/fs/xfs/libxfs/xfs_bmap_btree.h @@ -127,9 +127,9 @@ extern struct xfs_btree_cur *xfs_bmbt_init_cursor(struct xfs_mount *, * Check that the extent does not contain an invalid unwritten extent flag. */ static inline bool xfs_bmbt_validate_extent(struct xfs_mount *mp, int whichfork, - struct xfs_bmbt_rec_host *ep) + struct xfs_bmbt_rec *ep) { - if (ep->l0 >> (64 - BMBT_EXNTFLAG_BITLEN) == 0) + if (get_unaligned_be64(&ep->l0) >> (64 - BMBT_EXNTFLAG_BITLEN) == 0) return true; if (whichfork == XFS_DATA_FORK && xfs_sb_version_hasextflgbit(&mp->m_sb)) diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c index bb63f38b97cc..abe601b48c9c 100644 --- a/fs/xfs/libxfs/xfs_inode_fork.c +++ b/fs/xfs/libxfs/xfs_inode_fork.c @@ -371,13 +371,13 @@ xfs_iformat_extents( dp = (xfs_bmbt_rec_t *) XFS_DFORK_PTR(dip, whichfork); for (i = 0; i < nex; i++, dp++) { xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, i); - ep->l0 = get_unaligned_be64(&dp->l0); - ep->l1 = get_unaligned_be64(&dp->l1); - if (!xfs_bmbt_validate_extent(mp, whichfork, ep)) { + if (!xfs_bmbt_validate_extent(mp, whichfork, dp)) { XFS_ERROR_REPORT("xfs_iformat_extents(2)", XFS_ERRLEVEL_LOW, mp); return -EFSCORRUPTED; } + ep->l0 = get_unaligned_be64(&dp->l0); + ep->l1 = get_unaligned_be64(&dp->l1); trace_xfs_read_extent(ip, i, state, _THIS_IP_); } } @@ -764,8 +764,6 @@ xfs_iextents_copy( for (i = 0; i < nrecs; i++) { xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, i); - ASSERT(xfs_bmbt_validate_extent(ip->i_mount, whichfork, ep)); - start_block = xfs_bmbt_get_startblock(ep); if (isnullstartblock(start_block)) { /* @@ -779,6 +777,7 @@ xfs_iextents_copy( /* Translate to on disk format */ put_unaligned_be64(ep->l0, &dp->l0); put_unaligned_be64(ep->l1, &dp->l1); + ASSERT(xfs_bmbt_validate_extent(ip->i_mount, whichfork, dp)); dp++; copied++; |