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xfs: devirtualize ->node_hdr_from_disk 

Replace the ->node_hdr_from_disk dir ops method with a directly called
xfs_da_node_hdr_from_disk helper that takes care of the v4 vs v5
difference.

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 14:53:00 -08:00 committed by Darrick J. Wong
parent 649d9d98c6
commit f475dc4dc7
8 changed files with 60 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/xfs/libxfs/xfs_attr_leaf.c
View File

@ -1185,7 +1185,7 @@ xfs_attr3_leaf_to_node(
if (error)
goto out;
node = bp1->b_addr;
dp->d_ops->node_hdr_from_disk(&icnodehdr, node);
xfs_da3_node_hdr_from_disk(mp, &icnodehdr, node);
btree = dp->d_ops->node_tree_p(node);
leaf = bp2->b_addr;

84
fs/xfs/libxfs/xfs_da_btree.c
View File

@ -110,6 +110,31 @@ xfs_da_state_free(xfs_da_state_t *state)
kmem_zone_free(xfs_da_state_zone, state);
}
void
xfs_da3_node_hdr_from_disk(
struct xfs_mount *mp,
struct xfs_da3_icnode_hdr *to,
struct xfs_da_intnode *from)
{
if (xfs_sb_version_hascrc(&mp->m_sb)) {
struct xfs_da3_intnode *from3 = (struct xfs_da3_intnode *)from;
to->forw = be32_to_cpu(from3->hdr.info.hdr.forw);
to->back = be32_to_cpu(from3->hdr.info.hdr.back);
to->magic = be16_to_cpu(from3->hdr.info.hdr.magic);
to->count = be16_to_cpu(from3->hdr.__count);
to->level = be16_to_cpu(from3->hdr.__level);
ASSERT(to->magic == XFS_DA3_NODE_MAGIC);
} else {
to->forw = be32_to_cpu(from->hdr.info.forw);
to->back = be32_to_cpu(from->hdr.info.back);
to->magic = be16_to_cpu(from->hdr.info.magic);
to->count = be16_to_cpu(from->hdr.__count);
to->level = be16_to_cpu(from->hdr.__level);
ASSERT(to->magic == XFS_DA_NODE_MAGIC);
}
}
/*
* Verify an xfs_da3_blkinfo structure. Note that the da3 fields are only
* accessible on v5 filesystems. This header format is common across da node,
@ -145,12 +170,9 @@ xfs_da3_node_verify(
struct xfs_mount *mp = bp->b_mount;
struct xfs_da_intnode *hdr = bp->b_addr;
struct xfs_da3_icnode_hdr ichdr;
const struct xfs_dir_ops *ops;
xfs_failaddr_t fa;
ops = xfs_dir_get_ops(mp, NULL);
ops->node_hdr_from_disk(&ichdr, hdr);
xfs_da3_node_hdr_from_disk(mp, &ichdr, hdr);
fa = xfs_da3_blkinfo_verify(bp, bp->b_addr);
if (fa)
@ -579,7 +601,7 @@ xfs_da3_root_split(
oldroot->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC)) {
struct xfs_da3_icnode_hdr icnodehdr;
dp->d_ops->node_hdr_from_disk(&icnodehdr, oldroot);
xfs_da3_node_hdr_from_disk(dp->i_mount, &icnodehdr, oldroot);
btree = dp->d_ops->node_tree_p(oldroot);
size = (int)((char *)&btree[icnodehdr.count] - (char *)oldroot);
level = icnodehdr.level;
@ -639,7 +661,7 @@ xfs_da3_root_split(
return error;
node = bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
btree[0].hashval = cpu_to_be32(blk1->hashval);
btree[0].before = cpu_to_be32(blk1->blkno);
@ -688,7 +710,7 @@ xfs_da3_node_split(
trace_xfs_da_node_split(state->args);
node = oldblk->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
/*
* With V2 dirs the extra block is data or freespace.
@ -735,7 +757,7 @@ xfs_da3_node_split(
* If we had double-split op below us, then add the extra block too.
*/
node = oldblk->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
if (oldblk->index <= nodehdr.count) {
oldblk->index++;
xfs_da3_node_add(state, oldblk, addblk);
@ -790,8 +812,8 @@ xfs_da3_node_rebalance(
node1 = blk1->bp->b_addr;
node2 = blk2->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr1, node1);
dp->d_ops->node_hdr_from_disk(&nodehdr2, node2);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr1, node1);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr2, node2);
btree1 = dp->d_ops->node_tree_p(node1);
btree2 = dp->d_ops->node_tree_p(node2);
@ -806,8 +828,8 @@ xfs_da3_node_rebalance(
tmpnode = node1;
node1 = node2;
node2 = tmpnode;
dp->d_ops->node_hdr_from_disk(&nodehdr1, node1);
dp->d_ops->node_hdr_from_disk(&nodehdr2, node2);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr1, node1);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr2, node2);
btree1 = dp->d_ops->node_tree_p(node1);
btree2 = dp->d_ops->node_tree_p(node2);
swap = 1;
@ -888,8 +910,8 @@ xfs_da3_node_rebalance(
if (swap) {
node1 = blk1->bp->b_addr;
node2 = blk2->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr1, node1);
dp->d_ops->node_hdr_from_disk(&nodehdr2, node2);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr1, node1);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr2, node2);
btree1 = dp->d_ops->node_tree_p(node1);
btree2 = dp->d_ops->node_tree_p(node2);
}
@ -923,7 +945,7 @@ xfs_da3_node_add(
trace_xfs_da_node_add(state->args);
node = oldblk->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
ASSERT(oldblk->index >= 0 && oldblk->index <= nodehdr.count);
@ -1094,7 +1116,7 @@ xfs_da3_root_join(
args = state->args;
oldroot = root_blk->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&oldroothdr, oldroot);
xfs_da3_node_hdr_from_disk(dp->i_mount, &oldroothdr, oldroot);
ASSERT(oldroothdr.forw == 0);
ASSERT(oldroothdr.back == 0);
@ -1174,7 +1196,7 @@ xfs_da3_node_toosmall(
blk = &state->path.blk[ state->path.active-1 ];
info = blk->bp->b_addr;
node = (xfs_da_intnode_t *)info;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
if (nodehdr.count > (state->args->geo->node_ents >> 1)) {
*action = 0; /* blk over 50%, don't try to join */
return 0; /* blk over 50%, don't try to join */
@ -1232,7 +1254,7 @@ xfs_da3_node_toosmall(
return error;
node = bp->b_addr;
dp->d_ops->node_hdr_from_disk(&thdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &thdr, node);
xfs_trans_brelse(state->args->trans, bp);
if (count - thdr.count >= 0)
@ -1279,7 +1301,7 @@ xfs_da3_node_lasthash(
struct xfs_da3_icnode_hdr nodehdr;
node = bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
if (count)
*count = nodehdr.count;
if (!nodehdr.count)
@ -1330,7 +1352,7 @@ xfs_da3_fixhashpath(
struct xfs_da3_icnode_hdr nodehdr;
node = blk->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
if (be32_to_cpu(btree[blk->index].hashval) == lasthash)
break;
@ -1362,7 +1384,7 @@ xfs_da3_node_remove(
trace_xfs_da_node_remove(state->args);
node = drop_blk->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
ASSERT(drop_blk->index < nodehdr.count);
ASSERT(drop_blk->index >= 0);
@ -1418,8 +1440,8 @@ xfs_da3_node_unbalance(
drop_node = drop_blk->bp->b_addr;
save_node = save_blk->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&drop_hdr, drop_node);
dp->d_ops->node_hdr_from_disk(&save_hdr, save_node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &drop_hdr, drop_node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &save_hdr, save_node);
drop_btree = dp->d_ops->node_tree_p(drop_node);
save_btree = dp->d_ops->node_tree_p(save_node);
tp = state->args->trans;
@ -1554,7 +1576,7 @@ xfs_da3_node_lookup_int(
* Search an intermediate node for a match.
*/
node = blk->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
/* Tree taller than we can handle; bail out! */
@ -1690,8 +1712,8 @@ xfs_da3_node_order(
node1 = node1_bp->b_addr;
node2 = node2_bp->b_addr;
dp->d_ops->node_hdr_from_disk(&node1hdr, node1);
dp->d_ops->node_hdr_from_disk(&node2hdr, node2);
xfs_da3_node_hdr_from_disk(dp->i_mount, &node1hdr, node1);
xfs_da3_node_hdr_from_disk(dp->i_mount, &node2hdr, node2);
btree1 = dp->d_ops->node_tree_p(node1);
btree2 = dp->d_ops->node_tree_p(node2);
@ -1914,7 +1936,7 @@ xfs_da3_path_shift(
level = (path->active-1) - 1; /* skip bottom layer in path */
for (blk = &path->blk[level]; level >= 0; blk--, level--) {
node = blk->bp->b_addr;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
if (forward && (blk->index < nodehdr.count - 1)) {
@ -1975,7 +1997,7 @@ xfs_da3_path_shift(
case XFS_DA3_NODE_MAGIC:
blk->magic = XFS_DA_NODE_MAGIC;
node = (xfs_da_intnode_t *)info;
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
blk->hashval = be32_to_cpu(btree[nodehdr.count - 1].hashval);
if (forward)
@ -2260,7 +2282,7 @@ xfs_da3_swap_lastblock(
struct xfs_da3_icnode_hdr deadhdr;
dead_node = (xfs_da_intnode_t *)dead_info;
dp->d_ops->node_hdr_from_disk(&deadhdr, dead_node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &deadhdr, dead_node);
btree = dp->d_ops->node_tree_p(dead_node);
dead_level = deadhdr.level;
dead_hash = be32_to_cpu(btree[deadhdr.count - 1].hashval);
@ -2320,7 +2342,7 @@ xfs_da3_swap_lastblock(
if (error)
goto done;
par_node = par_buf->b_addr;
dp->d_ops->node_hdr_from_disk(&par_hdr, par_node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &par_hdr, par_node);
if (level >= 0 && level != par_hdr.level + 1) {
XFS_ERROR_REPORT("xfs_da_swap_lastblock(4)",
XFS_ERRLEVEL_LOW, mp);
@ -2371,7 +2393,7 @@ xfs_da3_swap_lastblock(
if (error)
goto done;
par_node = par_buf->b_addr;
dp->d_ops->node_hdr_from_disk(&par_hdr, par_node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &par_hdr, par_node);
if (par_hdr.level != level) {
XFS_ERROR_REPORT("xfs_da_swap_lastblock(7)",
XFS_ERRLEVEL_LOW, mp);

3
fs/xfs/libxfs/xfs_da_btree.h
View File

@ -215,6 +215,9 @@ enum xfs_dacmp xfs_da_compname(struct xfs_da_args *args,
xfs_da_state_t *xfs_da_state_alloc(void);
void xfs_da_state_free(xfs_da_state_t *state);
void xfs_da3_node_hdr_from_disk(struct xfs_mount *mp,
struct xfs_da3_icnode_hdr *to, struct xfs_da_intnode *from);
extern struct kmem_zone *xfs_da_state_zone;
extern const struct xfs_nameops xfs_default_nameops;

33
fs/xfs/libxfs/xfs_da_format.c
View File

@ -510,19 +510,6 @@ xfs_da3_node_tree_p(struct xfs_da_intnode *dap)
return ((struct xfs_da3_intnode *)dap)->__btree;
}
static void
xfs_da2_node_hdr_from_disk(
struct xfs_da3_icnode_hdr *to,
struct xfs_da_intnode *from)
{
ASSERT(from->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
to->forw = be32_to_cpu(from->hdr.info.forw);
to->back = be32_to_cpu(from->hdr.info.back);
to->magic = be16_to_cpu(from->hdr.info.magic);
to->count = be16_to_cpu(from->hdr.__count);
to->level = be16_to_cpu(from->hdr.__level);
}
static void
xfs_da2_node_hdr_to_disk(
struct xfs_da_intnode *to,
@ -536,21 +523,6 @@ xfs_da2_node_hdr_to_disk(
to->hdr.__level = cpu_to_be16(from->level);
}
static void
xfs_da3_node_hdr_from_disk(
struct xfs_da3_icnode_hdr *to,
struct xfs_da_intnode *from)
{
struct xfs_da3_node_hdr *hdr3 = (struct xfs_da3_node_hdr *)from;
ASSERT(from->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC));
to->forw = be32_to_cpu(hdr3->info.hdr.forw);
to->back = be32_to_cpu(hdr3->info.hdr.back);
to->magic = be16_to_cpu(hdr3->info.hdr.magic);
to->count = be16_to_cpu(hdr3->__count);
to->level = be16_to_cpu(hdr3->__level);
}
static void
xfs_da3_node_hdr_to_disk(
struct xfs_da_intnode *to,
@ -727,7 +699,6 @@ static const struct xfs_dir_ops xfs_dir2_ops = {
.node_hdr_size = sizeof(struct xfs_da_node_hdr),
.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
.node_tree_p = xfs_da2_node_tree_p,
.free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
@ -777,7 +748,6 @@ static const struct xfs_dir_ops xfs_dir2_ftype_ops = {
.node_hdr_size = sizeof(struct xfs_da_node_hdr),
.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
.node_tree_p = xfs_da2_node_tree_p,
.free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
@ -827,7 +797,6 @@ static const struct xfs_dir_ops xfs_dir3_ops = {
.node_hdr_size = sizeof(struct xfs_da3_node_hdr),
.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
.node_tree_p = xfs_da3_node_tree_p,
.free_hdr_size = sizeof(struct xfs_dir3_free_hdr),
@ -842,14 +811,12 @@ static const struct xfs_dir_ops xfs_dir3_ops = {
static const struct xfs_dir_ops xfs_dir2_nondir_ops = {
.node_hdr_size = sizeof(struct xfs_da_node_hdr),
.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
.node_tree_p = xfs_da2_node_tree_p,
};
static const struct xfs_dir_ops xfs_dir3_nondir_ops = {
.node_hdr_size = sizeof(struct xfs_da3_node_hdr),
.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
.node_tree_p = xfs_da3_node_tree_p,
};

2
fs/xfs/libxfs/xfs_dir2.h
View File

@ -84,8 +84,6 @@ struct xfs_dir_ops {
int node_hdr_size;
void (*node_hdr_to_disk)(struct xfs_da_intnode *to,
struct xfs_da3_icnode_hdr *from);
void (*node_hdr_from_disk)(struct xfs_da3_icnode_hdr *to,
struct xfs_da_intnode *from);
struct xfs_da_node_entry *
(*node_tree_p)(struct xfs_da_intnode *dap);

2
fs/xfs/scrub/dabtree.c
View File

@ -408,7 +408,7 @@ xchk_da_btree_block(
XFS_BLFT_DA_NODE_BUF);
blk->magic = XFS_DA_NODE_MAGIC;
node = blk->bp->b_addr;
ip->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(ip->i_mount, &nodehdr, node);
btree = ip->d_ops->node_tree_p(node);
*pmaxrecs = nodehdr.count;
blk->hashval = be32_to_cpu(btree[*pmaxrecs - 1].hashval);

2
fs/xfs/xfs_attr_inactive.c
View File

@ -215,7 +215,7 @@ xfs_attr3_node_inactive(
}
node = bp->b_addr;
dp->d_ops->node_hdr_from_disk(&ichdr, node);
xfs_da3_node_hdr_from_disk(dp->i_mount, &ichdr, node);
parent_blkno = bp->b_bn;
if (!ichdr.count) {
xfs_trans_brelse(*trans, bp);

2
fs/xfs/xfs_attr_list.c
View File

@ -240,7 +240,7 @@ xfs_attr_node_list_lookup(
goto out_corruptbuf;
}
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
xfs_da3_node_hdr_from_disk(mp, &nodehdr, node);
/* Tree taller than we can handle; bail out! */
if (nodehdr.level >= XFS_DA_NODE_MAXDEPTH)