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xfs: add CRC checks to block format directory blocks

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Now that directory buffers are made from a single struct xfs_buf, we
can add CRC calculation and checking callbacks. While there, add all
the fields to the on disk structures for future functionality such
as d_type support, uuids, block numbers, owner inode, etc.

To distinguish between the different on disk formats, change the
magic numbers for the new format directory blocks.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Dave Chinner
2013-04-03 16:11:20 +11:00
committed by Ben Myers
parent f948dd76dd
commit f5f3d9b016
7 changed files with 346 additions and 107 deletions
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6
fs/xfs/xfs_dir2_leaf.c
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@@ -149,6 +149,7 @@ xfs_dir2_block_to_leaf(
int needlog; /* need to log block header */
int needscan; /* need to rescan bestfree */
xfs_trans_t *tp; /* transaction pointer */
struct xfs_dir2_data_free *bf;
trace_xfs_dir2_block_to_leaf(args);
@@ -177,6 +178,7 @@ xfs_dir2_block_to_leaf(
xfs_dir2_data_check(dp, dbp);
btp = xfs_dir2_block_tail_p(mp, hdr);
blp = xfs_dir2_block_leaf_p(btp);
bf = xfs_dir3_data_bestfree_p(hdr);
/*
* Set the counts in the leaf header.
*/
@@ -212,7 +214,7 @@ xfs_dir2_block_to_leaf(
ltp = xfs_dir2_leaf_tail_p(mp, leaf);
ltp->bestcount = cpu_to_be32(1);
bestsp = xfs_dir2_leaf_bests_p(ltp);
bestsp[0] = hdr->bestfree[0].length;
bestsp[0] = bf[0].length;
/*
* Log the data header and leaf bests table.
*/
@@ -544,7 +546,7 @@ xfs_dir2_leaf_addname(
/*
* Initialize the block.
*/
if ((error = xfs_dir2_data_init(args, use_block, &dbp))) {
if ((error = xfs_dir3_data_init(args, use_block, &dbp))) {
xfs_trans_brelse(tp, lbp);
return error;
}