[PATCH 09/46] xfs: devirtualize ->leaf_hdr_to_disk

Christoph Hellwig
2019-11-07T18:24:40Z

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>
---
fs/xfs/libxfs/xfs_da_format.c | 35 -------------------------------
fs/xfs/libxfs/xfs_dir2.h | 2 --
fs/xfs/libxfs/xfs_dir2_leaf.c | 39 ++++++++++++++++++++++++++++++-----
fs/xfs/libxfs/xfs_dir2_node.c | 12 +++++------
fs/xfs/libxfs/xfs_dir2_priv.h | 2 ++
5 files changed, 42 insertions(+), 48 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_da_format.c b/fs/xfs/libxfs/xfs_da_format.c
index c848cab41be5..193708d12459 100644
--- a/fs/xfs/libxfs/xfs_da_format.c
+++ b/fs/xfs/libxfs/xfs_da_format.c
@@ -430,38 +430,6 @@ xfs_dir3_leaf_ents_p(struct xfs_dir2_leaf *lp)
return ((struct xfs_dir3_leaf *)lp)->__ents;
}

-static void
-xfs_dir2_leaf_hdr_to_disk(
- struct xfs_dir2_leaf *to,
- struct xfs_dir3_icleaf_hdr *from)
-{
- 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);
-}
-
-static void
-xfs_dir3_leaf_hdr_to_disk(
- struct xfs_dir2_leaf *to,
- struct xfs_dir3_icleaf_hdr *from)
-{
- struct xfs_dir3_leaf_hdr *hdr3 = (struct xfs_dir3_leaf_hdr *)to;
-
- ASSERT(from->magic == XFS_DIR3_LEAF1_MAGIC ||
- from->magic == XFS_DIR3_LEAFN_MAGIC);
-
- hdr3->info.hdr.forw = cpu_to_be32(from->forw);
- hdr3->info.hdr.back = cpu_to_be32(from->back);
- hdr3->info.hdr.magic = cpu_to_be16(from->magic);
- hdr3->count = cpu_to_be16(from->count);
- hdr3->stale = cpu_to_be16(from->stale);
-}
-
/*
* Directory free space block operations
*/
@@ -615,7 +583,6 @@ static const struct xfs_dir_ops xfs_dir2_ops = {
.data_unused_p = xfs_dir2_data_unused_p,

.leaf_hdr_size = sizeof(struct xfs_dir2_leaf_hdr),
- .leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
.leaf_max_ents = xfs_dir2_max_leaf_ents,
.leaf_ents_p = xfs_dir2_leaf_ents_p,

@@ -659,7 +626,6 @@ static const struct xfs_dir_ops xfs_dir2_ftype_ops = {
.data_unused_p = xfs_dir2_data_unused_p,

.leaf_hdr_size = sizeof(struct xfs_dir2_leaf_hdr),
- .leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
.leaf_max_ents = xfs_dir2_max_leaf_ents,
.leaf_ents_p = xfs_dir2_leaf_ents_p,

@@ -703,7 +669,6 @@ static const struct xfs_dir_ops xfs_dir3_ops = {
.data_unused_p = xfs_dir3_data_unused_p,

.leaf_hdr_size = sizeof(struct xfs_dir3_leaf_hdr),
- .leaf_hdr_to_disk = xfs_dir3_leaf_hdr_to_disk,
.leaf_max_ents = xfs_dir3_max_leaf_ents,
.leaf_ents_p = xfs_dir3_leaf_ents_p,

diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h
index 74c592496bf0..15a1a72dc126 100644
--- a/fs/xfs/libxfs/xfs_dir2.h
+++ b/fs/xfs/libxfs/xfs_dir2.h
@@ -73,8 +73,6 @@ struct xfs_dir_ops {
(*data_unused_p)(struct xfs_dir2_data_hdr *hdr);

int leaf_hdr_size;
- void (*leaf_hdr_to_disk)(struct xfs_dir2_leaf *to,
- struct xfs_dir3_icleaf_hdr *from);
int (*leaf_max_ents)(struct xfs_da_geometry *geo);
struct xfs_dir2_leaf_entry *
(*leaf_ents_p)(struct xfs_dir2_leaf *lp);
diff --git a/fs/xfs/libxfs/xfs_dir2_leaf.c b/fs/xfs/libxfs/xfs_dir2_leaf.c
index b27609c852c5..07734c0fe8a7 100644
--- a/fs/xfs/libxfs/xfs_dir2_leaf.c
+++ b/fs/xfs/libxfs/xfs_dir2_leaf.c
@@ -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);
diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c
index d4402b491a41..98cd645a8c99 100644
--- a/fs/xfs/libxfs/xfs_dir2_node.c
+++ b/fs/xfs/libxfs/xfs_dir2_node.c
@@ -497,7 +497,7 @@ xfs_dir2_leafn_add(
lep->address = cpu_to_be32(xfs_dir2_db_off_to_dataptr(args->geo,
args->blkno, args->index));

- 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);
xfs_dir3_leaf_log_ents(args, bp, lfloglow, lfloghigh);
xfs_dir3_leaf_check(dp, bp);
@@ -1079,8 +1079,8 @@ xfs_dir2_leafn_rebalance(
ASSERT(hdr1.stale + hdr2.stale == oldstale);

/* log the changes made when moving the entries */
- dp->d_ops->leaf_hdr_to_disk(leaf1, &hdr1);
- dp->d_ops->leaf_hdr_to_disk(leaf2, &hdr2);
+ xfs_dir2_leaf_hdr_to_disk(dp->i_mount, leaf1, &hdr1);
+ xfs_dir2_leaf_hdr_to_disk(dp->i_mount, leaf2, &hdr2);
xfs_dir3_leaf_log_header(args, blk1->bp);
xfs_dir3_leaf_log_header(args, blk2->bp);

@@ -1249,7 +1249,7 @@ xfs_dir2_leafn_remove(
* Log the leaf block changes.
*/
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, bp);

lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
@@ -1605,8 +1605,8 @@ xfs_dir2_leafn_unbalance(
save_blk->hashval = be32_to_cpu(sents[savehdr.count - 1].hashval);

/* log the changes made when moving the entries */
- dp->d_ops->leaf_hdr_to_disk(save_leaf, &savehdr);
- dp->d_ops->leaf_hdr_to_disk(drop_leaf, &drophdr);
+ xfs_dir2_leaf_hdr_to_disk(dp->i_mount, save_leaf, &savehdr);
+ xfs_dir2_leaf_hdr_to_disk(dp->i_mount, drop_leaf, &drophdr);
xfs_dir3_leaf_log_header(args, save_blk->bp);
xfs_dir3_leaf_log_header(args, drop_blk->bp);

diff --git a/fs/xfs/libxfs/xfs_dir2_priv.h b/fs/xfs/libxfs/xfs_dir2_priv.h
index 5f42f2c81869..af96e3faefaf 100644
--- a/fs/xfs/libxfs/xfs_dir2_priv.h
+++ b/fs/xfs/libxfs/xfs_dir2_priv.h
@@ -68,6 +68,8 @@ extern int xfs_dir3_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno,
/* xfs_dir2_leaf.c */
void xfs_dir2_leaf_hdr_from_disk(struct xfs_mount *mp,
struct xfs_dir3_icleaf_hdr *to, struct xfs_dir2_leaf *from);
+void xfs_dir2_leaf_hdr_to_disk(struct xfs_mount *mp, struct xfs_dir2_leaf *to,
+ struct xfs_dir3_icleaf_hdr *from);
extern int xfs_dir3_leaf_read(struct xfs_trans *tp, struct xfs_inode *dp,
xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
extern int xfs_dir3_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp,
--
2.20.1