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xfs: devirtualize ->leaf_hdr_to_disk

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Replace the ->leaf_hdr_to_disk dir ops method with a directly called
xfs_dir_leaf_hdr_to_disk helper that takes care of the differences
between the v4 and v5 on-disk format.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig
2019-11-08 14:57:50 -08:00
committed by Darrick J. Wong
parent 518425560a
commit 163fbbb356
5 changed files with 42 additions and 48 deletions
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39
fs/xfs/libxfs/xfs_dir2_leaf.c
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@@ -59,6 +59,35 @@ xfs_dir2_leaf_hdr_from_disk(
}
}
void
xfs_dir2_leaf_hdr_to_disk(
struct xfs_mount *mp,
struct xfs_dir2_leaf *to,
struct xfs_dir3_icleaf_hdr *from)
{
if (xfs_sb_version_hascrc(&mp->m_sb)) {
struct xfs_dir3_leaf *to3 = (struct xfs_dir3_leaf *)to;
ASSERT(from->magic == XFS_DIR3_LEAF1_MAGIC ||
from->magic == XFS_DIR3_LEAFN_MAGIC);
to3->hdr.info.hdr.forw = cpu_to_be32(from->forw);
to3->hdr.info.hdr.back = cpu_to_be32(from->back);
to3->hdr.info.hdr.magic = cpu_to_be16(from->magic);
to3->hdr.count = cpu_to_be16(from->count);
to3->hdr.stale = cpu_to_be16(from->stale);
} else {
ASSERT(from->magic == XFS_DIR2_LEAF1_MAGIC ||
from->magic == XFS_DIR2_LEAFN_MAGIC);
to->hdr.info.forw = cpu_to_be32(from->forw);
to->hdr.info.back = cpu_to_be32(from->back);
to->hdr.info.magic = cpu_to_be16(from->magic);
to->hdr.count = cpu_to_be16(from->count);
to->hdr.stale = cpu_to_be16(from->stale);
}
}
/*
* Check the internal consistency of a leaf1 block.
* Pop an assert if something is wrong.
@@ -413,7 +442,7 @@ xfs_dir2_block_to_leaf(
xfs_dir2_leaf_hdr_from_disk(dp->i_mount, &leafhdr, leaf);
leafhdr.count = be32_to_cpu(btp->count);
leafhdr.stale = be32_to_cpu(btp->stale);
dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
xfs_dir2_leaf_hdr_to_disk(dp->i_mount, leaf, &leafhdr);
xfs_dir3_leaf_log_header(args, lbp);
/*
@@ -881,7 +910,7 @@ xfs_dir2_leaf_addname(
/*
* Log the leaf fields and give up the buffers.
*/
dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
xfs_dir2_leaf_hdr_to_disk(dp->i_mount, leaf, &leafhdr);
xfs_dir3_leaf_log_header(args, lbp);
xfs_dir3_leaf_log_ents(args, lbp, lfloglow, lfloghigh);
xfs_dir3_leaf_check(dp, lbp);
@@ -934,7 +963,7 @@ xfs_dir3_leaf_compact(
leafhdr->count -= leafhdr->stale;
leafhdr->stale = 0;
dp->d_ops->leaf_hdr_to_disk(leaf, leafhdr);
xfs_dir2_leaf_hdr_to_disk(dp->i_mount, leaf, leafhdr);
xfs_dir3_leaf_log_header(args, bp);
if (loglow != -1)
xfs_dir3_leaf_log_ents(args, bp, loglow, to - 1);
@@ -1386,7 +1415,7 @@ xfs_dir2_leaf_removename(
* We just mark the leaf entry stale by putting a null in it.
*/
leafhdr.stale++;
dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
xfs_dir2_leaf_hdr_to_disk(dp->i_mount, leaf, &leafhdr);
xfs_dir3_leaf_log_header(args, lbp);
lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
@@ -1777,7 +1806,7 @@ xfs_dir2_node_to_leaf(
memcpy(xfs_dir2_leaf_bests_p(ltp), dp->d_ops->free_bests_p(free),
freehdr.nvalid * sizeof(xfs_dir2_data_off_t));
dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
xfs_dir2_leaf_hdr_to_disk(mp, leaf, &leafhdr);
xfs_dir3_leaf_log_header(args, lbp);
xfs_dir3_leaf_log_bests(args, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
xfs_dir3_leaf_log_tail(args, lbp);