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xfs: vectorise encoding/decoding directory headers

Browse Source 
Conversion from on-disk structures to in-core header structures
currently relies on magic number checks. If the magic number is
wrong, but one of the supported values, we do the wrong thing with
the encode/decode operation. Split these functions so that there are
discrete operations for the specific directory format we are
handling.

In doing this, move all the header encode/decode functions to
xfs_da_format.c as they are directly manipulating the on-disk
format. It should be noted that all the growth in binary size is
from xfs_da_format.c - the rest of the code actaully shrinks.

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2
 789293   96802    1096  887191   d8997 fs/xfs/xfs.o.p3
 789005   96802    1096  886903   d8997 fs/xfs/xfs.o.p4
 789061   96802    1096  886959   d88af fs/xfs/xfs.o.p5
 789733   96802    1096  887631   d8b4f fs/xfs/xfs.o.p6
 791421   96802    1096  889319   d91e7 fs/xfs/xfs.o.p7

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 2013-10-29 22:11:52 +11:00 committed by Ben Myers
parent 4bceb18f15
commit 01ba43b873
11 changed files with 338 additions and 281 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/xfs/xfs_attr_inactive.c
View File

@ -231,7 +231,7 @@ xfs_attr3_node_inactive(
}
node = bp->b_addr;
xfs_da3_node_hdr_from_disk(&ichdr, node);
dp->d_ops->node_hdr_from_disk(&ichdr, node);
parent_blkno = bp->b_bn;
if (!ichdr.count) {
xfs_trans_brelse(*trans, bp);

4
fs/xfs/xfs_attr_leaf.c
View File

@ -916,7 +916,7 @@ xfs_attr3_leaf_to_node(
if (error)
goto out;
node = bp1->b_addr;
xfs_da3_node_hdr_from_disk(&icnodehdr, node);
dp->d_ops->node_hdr_from_disk(&icnodehdr, node);
btree = dp->d_ops->node_tree_p(node);
leaf = bp2->b_addr;
@ -927,7 +927,7 @@ xfs_attr3_leaf_to_node(
btree[0].hashval = entries[icleafhdr.count - 1].hashval;
btree[0].before = cpu_to_be32(blkno);
icnodehdr.count = 1;
xfs_da3_node_hdr_to_disk(node, &icnodehdr);
dp->d_ops->node_hdr_to_disk(node, &icnodehdr);
xfs_trans_log_buf(args->trans, bp1, 0, XFS_LBSIZE(mp) - 1);
error = 0;
out:

2
fs/xfs/xfs_attr_list.c
View File

@ -311,7 +311,7 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
return XFS_ERROR(EFSCORRUPTED);
}
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
for (i = 0; i < nodehdr.count; btree++, i++) {
if (cursor->hashval

141
fs/xfs/xfs_da_btree.c
View File

@ -129,56 +129,6 @@ 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_da3_icnode_hdr *to,
struct xfs_da_intnode *from)
{
ASSERT(from->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC) ||
from->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC));
if (from->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC)) {
struct xfs_da3_node_hdr *hdr3 = (struct xfs_da3_node_hdr *)from;
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);
return;
}
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);
}
void
xfs_da3_node_hdr_to_disk(
struct xfs_da_intnode *to,
struct xfs_da3_icnode_hdr *from)
{
ASSERT(from->magic == XFS_DA_NODE_MAGIC ||
from->magic == XFS_DA3_NODE_MAGIC);
if (from->magic == XFS_DA3_NODE_MAGIC) {
struct xfs_da3_node_hdr *hdr3 = (struct xfs_da3_node_hdr *)to;
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->__level = cpu_to_be16(from->level);
return;
}
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.__level = cpu_to_be16(from->level);
}
static bool
xfs_da3_node_verify(
struct xfs_buf *bp)
@ -186,8 +136,11 @@ xfs_da3_node_verify(
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_da_intnode *hdr = bp->b_addr;
struct xfs_da3_icnode_hdr ichdr;
const struct xfs_dir_ops *ops;
xfs_da3_node_hdr_from_disk(&ichdr, hdr);
ops = xfs_dir_get_ops(mp, NULL);
ops->node_hdr_from_disk(&ichdr, hdr);
if (xfs_sb_version_hascrc(&mp->m_sb)) {
struct xfs_da3_node_hdr *hdr3 = bp->b_addr;
@ -354,11 +307,12 @@ xfs_da3_node_create(
struct xfs_da3_icnode_hdr ichdr = {0};
struct xfs_buf *bp;
int error;
struct xfs_inode *dp = args->dp;
trace_xfs_da_node_create(args);
ASSERT(level <= XFS_DA_NODE_MAXDEPTH);
error = xfs_da_get_buf(tp, args->dp, blkno, -1, &bp, whichfork);
error = xfs_da_get_buf(tp, dp, blkno, -1, &bp, whichfork);
if (error)
return(error);
bp->b_ops = &xfs_da3_node_buf_ops;
@ -377,10 +331,10 @@ xfs_da3_node_create(
}
ichdr.level = level;
xfs_da3_node_hdr_to_disk(node, &ichdr);
dp->d_ops->node_hdr_to_disk(node, &ichdr);
xfs_trans_log_buf(tp, bp,
XFS_DA_LOGRANGE(node, &node->hdr,
args->dp->d_ops->node_hdr_size()));
dp->d_ops->node_hdr_size()));
*bpp = bp;
return(0);
@ -590,7 +544,7 @@ xfs_da3_root_split(
oldroot->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC)) {
struct xfs_da3_icnode_hdr nodehdr;
xfs_da3_node_hdr_from_disk(&nodehdr, oldroot);
dp->d_ops->node_hdr_from_disk(&nodehdr, oldroot);
btree = dp->d_ops->node_tree_p(oldroot);
size = (int)((char *)&btree[nodehdr.count] - (char *)oldroot);
level = nodehdr.level;
@ -605,7 +559,7 @@ xfs_da3_root_split(
struct xfs_dir2_leaf_entry *ents;
leaf = (xfs_dir2_leaf_t *)oldroot;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
ASSERT(leafhdr.magic == XFS_DIR2_LEAFN_MAGIC ||
@ -650,14 +604,14 @@ xfs_da3_root_split(
return error;
node = bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&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);
btree[1].hashval = cpu_to_be32(blk2->hashval);
btree[1].before = cpu_to_be32(blk2->blkno);
nodehdr.count = 2;
xfs_da3_node_hdr_to_disk(node, &nodehdr);
dp->d_ops->node_hdr_to_disk(node, &nodehdr);
#ifdef DEBUG
if (oldroot->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
@ -694,11 +648,12 @@ xfs_da3_node_split(
int newcount;
int error;
int useextra;
struct xfs_inode *dp = state->args->dp;
trace_xfs_da_node_split(state->args);
node = oldblk->bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
/*
* With V2 dirs the extra block is data or freespace.
@ -745,7 +700,7 @@ xfs_da3_node_split(
* If we had double-split op below us, then add the extra block too.
*/
node = oldblk->bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
if (oldblk->index <= nodehdr.count) {
oldblk->index++;
xfs_da3_node_add(state, oldblk, addblk);
@ -800,8 +755,8 @@ xfs_da3_node_rebalance(
node1 = blk1->bp->b_addr;
node2 = blk2->bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr1, node1);
xfs_da3_node_hdr_from_disk(&nodehdr2, node2);
dp->d_ops->node_hdr_from_disk(&nodehdr1, node1);
dp->d_ops->node_hdr_from_disk(&nodehdr2, node2);
btree1 = dp->d_ops->node_tree_p(node1);
btree2 = dp->d_ops->node_tree_p(node2);
@ -816,8 +771,8 @@ xfs_da3_node_rebalance(
tmpnode = node1;
node1 = node2;
node2 = tmpnode;
xfs_da3_node_hdr_from_disk(&nodehdr1, node1);
xfs_da3_node_hdr_from_disk(&nodehdr2, node2);
dp->d_ops->node_hdr_from_disk(&nodehdr1, node1);
dp->d_ops->node_hdr_from_disk(&nodehdr2, node2);
btree1 = dp->d_ops->node_tree_p(node1);
btree2 = dp->d_ops->node_tree_p(node2);
swap = 1;
@ -881,12 +836,12 @@ xfs_da3_node_rebalance(
/*
* Log header of node 1 and all current bits of node 2.
*/
xfs_da3_node_hdr_to_disk(node1, &nodehdr1);
dp->d_ops->node_hdr_to_disk(node1, &nodehdr1);
xfs_trans_log_buf(tp, blk1->bp,
XFS_DA_LOGRANGE(node1, &node1->hdr,
dp->d_ops->node_hdr_size()));
xfs_da3_node_hdr_to_disk(node2, &nodehdr2);
dp->d_ops->node_hdr_to_disk(node2, &nodehdr2);
xfs_trans_log_buf(tp, blk2->bp,
XFS_DA_LOGRANGE(node2, &node2->hdr,
dp->d_ops->node_hdr_size() +
@ -899,8 +854,8 @@ xfs_da3_node_rebalance(
if (swap) {
node1 = blk1->bp->b_addr;
node2 = blk2->bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr1, node1);
xfs_da3_node_hdr_from_disk(&nodehdr2, node2);
dp->d_ops->node_hdr_from_disk(&nodehdr1, node1);
dp->d_ops->node_hdr_from_disk(&nodehdr2, node2);
btree1 = dp->d_ops->node_tree_p(node1);
btree2 = dp->d_ops->node_tree_p(node2);
}
@ -934,7 +889,7 @@ xfs_da3_node_add(
trace_xfs_da_node_add(state->args);
node = oldblk->bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
ASSERT(oldblk->index >= 0 && oldblk->index <= nodehdr.count);
@ -958,7 +913,7 @@ xfs_da3_node_add(
tmp + sizeof(*btree)));
nodehdr.count += 1;
xfs_da3_node_hdr_to_disk(node, &nodehdr);
dp->d_ops->node_hdr_to_disk(node, &nodehdr);
xfs_trans_log_buf(state->args->trans, oldblk->bp,
XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size()));
@ -1097,6 +1052,7 @@ xfs_da3_root_join(
struct xfs_da3_icnode_hdr oldroothdr;
struct xfs_da_node_entry *btree;
int error;
struct xfs_inode *dp = state->args->dp;
trace_xfs_da_root_join(state->args);
@ -1104,7 +1060,7 @@ xfs_da3_root_join(
args = state->args;
oldroot = root_blk->bp->b_addr;
xfs_da3_node_hdr_from_disk(&oldroothdr, oldroot);
dp->d_ops->node_hdr_from_disk(&oldroothdr, oldroot);
ASSERT(oldroothdr.forw == 0);
ASSERT(oldroothdr.back == 0);
@ -1118,10 +1074,10 @@ xfs_da3_root_join(
* Read in the (only) child block, then copy those bytes into
* the root block's buffer and free the original child block.
*/
btree = args->dp->d_ops->node_tree_p(oldroot);
btree = dp->d_ops->node_tree_p(oldroot);
child = be32_to_cpu(btree[0].before);
ASSERT(child != 0);
error = xfs_da3_node_read(args->trans, args->dp, child, -1, &bp,
error = xfs_da3_node_read(args->trans, dp, child, -1, &bp,
args->whichfork);
if (error)
return error;
@ -1171,6 +1127,7 @@ xfs_da3_node_toosmall(
int error;
int retval;
int i;
struct xfs_inode *dp = state->args->dp;
trace_xfs_da_node_toosmall(state->args);
@ -1182,7 +1139,7 @@ xfs_da3_node_toosmall(
blk = &state->path.blk[ state->path.active-1 ];
info = blk->bp->b_addr;
node = (xfs_da_intnode_t *)info;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
if (nodehdr.count > (state->node_ents >> 1)) {
*action = 0; /* blk over 50%, don't try to join */
return(0); /* blk over 50%, don't try to join */
@ -1234,13 +1191,13 @@ xfs_da3_node_toosmall(
blkno = nodehdr.back;
if (blkno == 0)
continue;
error = xfs_da3_node_read(state->args->trans, state->args->dp,
error = xfs_da3_node_read(state->args->trans, dp,
blkno, -1, &bp, state->args->whichfork);
if (error)
return(error);
node = bp->b_addr;
xfs_da3_node_hdr_from_disk(&thdr, node);
dp->d_ops->node_hdr_from_disk(&thdr, node);
xfs_trans_brelse(state->args->trans, bp);
if (count - thdr.count >= 0)
@ -1287,7 +1244,7 @@ xfs_da3_node_lasthash(
struct xfs_da3_icnode_hdr nodehdr;
node = bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
if (count)
*count = nodehdr.count;
if (!nodehdr.count)
@ -1338,7 +1295,7 @@ xfs_da3_fixhashpath(
struct xfs_da3_icnode_hdr nodehdr;
node = blk->bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
if (be32_to_cpu(btree->hashval) == lasthash)
break;
@ -1370,7 +1327,7 @@ xfs_da3_node_remove(
trace_xfs_da_node_remove(state->args);
node = drop_blk->bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
ASSERT(drop_blk->index < nodehdr.count);
ASSERT(drop_blk->index >= 0);
@ -1391,7 +1348,7 @@ xfs_da3_node_remove(
xfs_trans_log_buf(state->args->trans, drop_blk->bp,
XFS_DA_LOGRANGE(node, &btree[index], sizeof(btree[index])));
nodehdr.count -= 1;
xfs_da3_node_hdr_to_disk(node, &nodehdr);
dp->d_ops->node_hdr_to_disk(node, &nodehdr);
xfs_trans_log_buf(state->args->trans, drop_blk->bp,
XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size()));
@ -1426,8 +1383,8 @@ xfs_da3_node_unbalance(
drop_node = drop_blk->bp->b_addr;
save_node = save_blk->bp->b_addr;
xfs_da3_node_hdr_from_disk(&drop_hdr, drop_node);
xfs_da3_node_hdr_from_disk(&save_hdr, save_node);
dp->d_ops->node_hdr_from_disk(&drop_hdr, drop_node);
dp->d_ops->node_hdr_from_disk(&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;
@ -1463,7 +1420,7 @@ xfs_da3_node_unbalance(
memcpy(&save_btree[sindex], &drop_btree[0], tmp);
save_hdr.count += drop_hdr.count;
xfs_da3_node_hdr_to_disk(save_node, &save_hdr);
dp->d_ops->node_hdr_to_disk(save_node, &save_hdr);
xfs_trans_log_buf(tp, save_blk->bp,
XFS_DA_LOGRANGE(save_node, &save_node->hdr,
dp->d_ops->node_hdr_size()));
@ -1556,7 +1513,7 @@ xfs_da3_node_lookup_int(
* Search an intermediate node for a match.
*/
node = blk->bp->b_addr;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
max = nodehdr.count;
@ -1665,8 +1622,8 @@ xfs_da3_node_order(
node1 = node1_bp->b_addr;
node2 = node2_bp->b_addr;
xfs_da3_node_hdr_from_disk(&node1hdr, node1);
xfs_da3_node_hdr_from_disk(&node2hdr, node2);
dp->d_ops->node_hdr_from_disk(&node1hdr, node1);
dp->d_ops->node_hdr_from_disk(&node2hdr, node2);
btree1 = dp->d_ops->node_tree_p(node1);
btree2 = dp->d_ops->node_tree_p(node2);
@ -1888,7 +1845,7 @@ 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;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
if (forward && (blk->index < nodehdr.count - 1)) {
@ -1945,7 +1902,7 @@ xfs_da3_path_shift(
case XFS_DA3_NODE_MAGIC:
blk->magic = XFS_DA_NODE_MAGIC;
node = (xfs_da_intnode_t *)info;
xfs_da3_node_hdr_from_disk(&nodehdr, node);
dp->d_ops->node_hdr_from_disk(&nodehdr, node);
btree = dp->d_ops->node_tree_p(node);
blk->hashval = be32_to_cpu(btree[nodehdr.count - 1].hashval);
if (forward)
@ -2233,7 +2190,7 @@ xfs_da3_swap_lastblock(
struct xfs_dir2_leaf_entry *ents;
dead_leaf2 = (xfs_dir2_leaf_t *)dead_info;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, dead_leaf2);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, dead_leaf2);
ents = dp->d_ops->leaf_ents_p(dead_leaf2);
dead_level = 0;
dead_hash = be32_to_cpu(ents[leafhdr.count - 1].hashval);
@ -2241,7 +2198,7 @@ xfs_da3_swap_lastblock(
struct xfs_da3_icnode_hdr deadhdr;
dead_node = (xfs_da_intnode_t *)dead_info;
xfs_da3_node_hdr_from_disk(&deadhdr, dead_node);
dp->d_ops->node_hdr_from_disk(&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);
@ -2301,7 +2258,7 @@ xfs_da3_swap_lastblock(
if (error)
goto done;
par_node = par_buf->b_addr;
xfs_da3_node_hdr_from_disk(&par_hdr, par_node);
dp->d_ops->node_hdr_from_disk(&par_hdr, par_node);
if (level >= 0 && level != par_hdr.level + 1) {
XFS_ERROR_REPORT("xfs_da_swap_lastblock(4)",
XFS_ERRLEVEL_LOW, mp);
@ -2352,7 +2309,7 @@ xfs_da3_swap_lastblock(
if (error)
goto done;
par_node = par_buf->b_addr;
xfs_da3_node_hdr_from_disk(&par_hdr, par_node);
dp->d_ops->node_hdr_from_disk(&par_hdr, par_node);
if (par_hdr.level != level) {
XFS_ERROR_REPORT("xfs_da_swap_lastblock(7)",
XFS_ERRLEVEL_LOW, mp);

209
fs/xfs/xfs_da_format.c
View File

@ -464,19 +464,84 @@ xfs_dir3_leaf_hdr_size(void)
return sizeof(struct xfs_dir3_leaf_hdr);
}
static inline int
static int
xfs_dir3_max_leaf_ents(struct xfs_mount *mp)
{
return (mp->m_dirblksize - xfs_dir3_leaf_hdr_size()) /
(uint)sizeof(struct xfs_dir2_leaf_entry);
}
static inline struct xfs_dir2_leaf_entry *
static struct xfs_dir2_leaf_entry *
xfs_dir3_leaf_ents_p(struct xfs_dir2_leaf *lp)
{
return ((struct xfs_dir3_leaf *)lp)->__ents;
}
static void
xfs_dir2_leaf_hdr_from_disk(
struct xfs_dir3_icleaf_hdr *to,
struct xfs_dir2_leaf *from)
{
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->stale = be16_to_cpu(from->hdr.stale);
ASSERT(to->magic == XFS_DIR2_LEAF1_MAGIC ||
to->magic == XFS_DIR2_LEAFN_MAGIC);
}
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_from_disk(
struct xfs_dir3_icleaf_hdr *to,
struct xfs_dir2_leaf *from)
{
struct xfs_dir3_leaf_hdr *hdr3 = (struct xfs_dir3_leaf_hdr *)from;
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->stale = be16_to_cpu(hdr3->stale);
ASSERT(to->magic == XFS_DIR3_LEAF1_MAGIC ||
to->magic == XFS_DIR3_LEAFN_MAGIC);
}
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/Attribute Node block operations
*/
@ -504,6 +569,121 @@ 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,
struct xfs_da3_icnode_hdr *from)
{
ASSERT(from->magic == XFS_DA_NODE_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.__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,
struct xfs_da3_icnode_hdr *from)
{
struct xfs_da3_node_hdr *hdr3 = (struct xfs_da3_node_hdr *)to;
ASSERT(from->magic == XFS_DA3_NODE_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->__level = cpu_to_be16(from->level);
}
/*
* Directory free space block operations
*/
static void
xfs_dir2_free_hdr_from_disk(
struct xfs_dir3_icfree_hdr *to,
struct xfs_dir2_free *from)
{
to->magic = be32_to_cpu(from->hdr.magic);
to->firstdb = be32_to_cpu(from->hdr.firstdb);
to->nvalid = be32_to_cpu(from->hdr.nvalid);
to->nused = be32_to_cpu(from->hdr.nused);
ASSERT(to->magic == XFS_DIR2_FREE_MAGIC);
}
static void
xfs_dir2_free_hdr_to_disk(
struct xfs_dir2_free *to,
struct xfs_dir3_icfree_hdr *from)
{
ASSERT(from->magic == XFS_DIR2_FREE_MAGIC);
to->hdr.magic = cpu_to_be32(from->magic);
to->hdr.firstdb = cpu_to_be32(from->firstdb);
to->hdr.nvalid = cpu_to_be32(from->nvalid);
to->hdr.nused = cpu_to_be32(from->nused);
}
static void
xfs_dir3_free_hdr_from_disk(
struct xfs_dir3_icfree_hdr *to,
struct xfs_dir2_free *from)
{
struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)from;
to->magic = be32_to_cpu(hdr3->hdr.magic);
to->firstdb = be32_to_cpu(hdr3->firstdb);
to->nvalid = be32_to_cpu(hdr3->nvalid);
to->nused = be32_to_cpu(hdr3->nused);
ASSERT(to->magic == XFS_DIR3_FREE_MAGIC);
}
static void
xfs_dir3_free_hdr_to_disk(
struct xfs_dir2_free *to,
struct xfs_dir3_icfree_hdr *from)
{
struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)to;
ASSERT(from->magic == XFS_DIR3_FREE_MAGIC);
hdr3->hdr.magic = cpu_to_be32(from->magic);
hdr3->firstdb = cpu_to_be32(from->firstdb);
hdr3->nvalid = cpu_to_be32(from->nvalid);
hdr3->nused = cpu_to_be32(from->nused);
}
const struct xfs_dir_ops xfs_dir2_ops = {
.sf_entsize = xfs_dir2_sf_entsize,
.sf_nextentry = xfs_dir2_sf_nextentry,
@ -532,11 +712,18 @@ const struct xfs_dir_ops xfs_dir2_ops = {
.data_unused_p = xfs_dir2_data_unused_p,
.leaf_hdr_size = xfs_dir2_leaf_hdr_size,
.leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
.leaf_hdr_from_disk = xfs_dir2_leaf_hdr_from_disk,
.leaf_max_ents = xfs_dir2_max_leaf_ents,
.leaf_ents_p = xfs_dir2_leaf_ents_p,
.node_hdr_size = xfs_da2_node_hdr_size,
.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_to_disk = xfs_dir2_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
};
const struct xfs_dir_ops xfs_dir2_ftype_ops = {
@ -567,11 +754,18 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
.data_unused_p = xfs_dir2_data_unused_p,
.leaf_hdr_size = xfs_dir2_leaf_hdr_size,
.leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
.leaf_hdr_from_disk = xfs_dir2_leaf_hdr_from_disk,
.leaf_max_ents = xfs_dir2_max_leaf_ents,
.leaf_ents_p = xfs_dir2_leaf_ents_p,
.node_hdr_size = xfs_da2_node_hdr_size,
.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_to_disk = xfs_dir2_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
};
const struct xfs_dir_ops xfs_dir3_ops = {
@ -602,20 +796,31 @@ const struct xfs_dir_ops xfs_dir3_ops = {
.data_unused_p = xfs_dir3_data_unused_p,
.leaf_hdr_size = xfs_dir3_leaf_hdr_size,
.leaf_hdr_to_disk = xfs_dir3_leaf_hdr_to_disk,
.leaf_hdr_from_disk = xfs_dir3_leaf_hdr_from_disk,
.leaf_max_ents = xfs_dir3_max_leaf_ents,
.leaf_ents_p = xfs_dir3_leaf_ents_p,
.node_hdr_size = xfs_da3_node_hdr_size,
.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_to_disk = xfs_dir3_free_hdr_to_disk,
.free_hdr_from_disk = xfs_dir3_free_hdr_from_disk,
};
const struct xfs_dir_ops xfs_dir2_nondir_ops = {
.node_hdr_size = xfs_da2_node_hdr_size,
.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,
};
const struct xfs_dir_ops xfs_dir3_nondir_ops = {
.node_hdr_size = xfs_da3_node_hdr_size,
.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,
};

16
fs/xfs/xfs_da_format.h
View File

@ -122,16 +122,6 @@ struct xfs_da3_icnode_hdr {
__uint16_t level;
};
extern void xfs_da3_node_hdr_from_disk(struct xfs_da3_icnode_hdr *to,
struct xfs_da_intnode *from);
extern void xfs_da3_node_hdr_to_disk(struct xfs_da_intnode *to,
struct xfs_da3_icnode_hdr *from);
extern void xfs_da3_intnode_from_disk(struct xfs_da3_icnode_hdr *to,
struct xfs_da_intnode *from);
extern void xfs_da3_intnode_to_disk(struct xfs_da_intnode *to,
struct xfs_da3_icnode_hdr *from);
#define XFS_LBSIZE(mp) (mp)->m_sb.sb_blocksize
/*
@ -523,9 +513,6 @@ struct xfs_dir3_leaf {
#define XFS_DIR3_LEAF_CRC_OFF offsetof(struct xfs_dir3_leaf_hdr, info.crc)
extern void xfs_dir3_leaf_hdr_from_disk(struct xfs_dir3_icleaf_hdr *to,
struct xfs_dir2_leaf *from);
/*
* Get address of the bestcount field in the single-leaf block.
*/
@ -717,9 +704,6 @@ struct xfs_dir3_icfree_hdr {
};
void xfs_dir3_free_hdr_from_disk(struct xfs_dir3_icfree_hdr *to,
struct xfs_dir2_free *from);
static inline int
xfs_dir3_free_hdr_size(struct xfs_mount *mp)
{

13
fs/xfs/xfs_dir2.h
View File

@ -76,13 +76,26 @@ struct xfs_dir_ops {
(*data_unused_p)(struct xfs_dir2_data_hdr *hdr);
int (*leaf_hdr_size)(void);
void (*leaf_hdr_to_disk)(struct xfs_dir2_leaf *to,
struct xfs_dir3_icleaf_hdr *from);
void (*leaf_hdr_from_disk)(struct xfs_dir3_icleaf_hdr *to,
struct xfs_dir2_leaf *from);
int (*leaf_max_ents)(struct xfs_mount *mp);
struct xfs_dir2_leaf_entry *
(*leaf_ents_p)(struct xfs_dir2_leaf *lp);
int (*node_hdr_size)(void);
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);
void (*free_hdr_to_disk)(struct xfs_dir2_free *to,
struct xfs_dir3_icfree_hdr *from);
void (*free_hdr_from_disk)(struct xfs_dir3_icfree_hdr *to,
struct xfs_dir2_free *from);
};
extern const struct xfs_dir_ops *

2
fs/xfs/xfs_dir2_block.c
View File

@ -936,7 +936,7 @@ xfs_dir2_leaf_to_block(
tp = args->trans;
mp = dp->i_mount;
leaf = lbp->b_addr;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
ltp = xfs_dir2_leaf_tail_p(mp, leaf);

100
fs/xfs/xfs_dir2_leaf.c
View File

@ -64,7 +64,7 @@ xfs_dir3_leaf1_check(
struct xfs_dir2_leaf *leaf = bp->b_addr;
struct xfs_dir3_icleaf_hdr leafhdr;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
if (leafhdr.magic == XFS_DIR3_LEAF1_MAGIC) {
struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr;
@ -79,62 +79,6 @@ xfs_dir3_leaf1_check(
#define xfs_dir3_leaf_check(dp, bp)
#endif
void
xfs_dir3_leaf_hdr_from_disk(
struct xfs_dir3_icleaf_hdr *to,
struct xfs_dir2_leaf *from)
{
if (from->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC) ||
from->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_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->stale = be16_to_cpu(from->hdr.stale);
} else {
struct xfs_dir3_leaf_hdr *hdr3 = (struct xfs_dir3_leaf_hdr *)from;
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->stale = be16_to_cpu(hdr3->stale);
}
ASSERT(to->magic == XFS_DIR2_LEAF1_MAGIC ||
to->magic == XFS_DIR3_LEAF1_MAGIC ||
to->magic == XFS_DIR2_LEAFN_MAGIC ||
to->magic == XFS_DIR3_LEAFN_MAGIC);
}
void
xfs_dir3_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_DIR3_LEAF1_MAGIC ||
from->magic == XFS_DIR2_LEAFN_MAGIC ||
from->magic == XFS_DIR3_LEAFN_MAGIC);
if (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);
} else {
struct xfs_dir3_leaf_hdr *hdr3 = (struct xfs_dir3_leaf_hdr *)to;
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);
}
}
bool
xfs_dir3_leaf_check_int(
struct xfs_mount *mp,
@ -147,6 +91,7 @@ xfs_dir3_leaf_check_int(
int stale;
int i;
const struct xfs_dir_ops *ops;
struct xfs_dir3_icleaf_hdr leafhdr;
/*
* we can be passed a null dp here from a verifier, so we need to go the
@ -154,6 +99,11 @@ xfs_dir3_leaf_check_int(
*/
ops = xfs_dir_get_ops(mp, dp);
if (!hdr) {
ops->leaf_hdr_from_disk(&leafhdr, leaf);
hdr = &leafhdr;
}
ents = ops->leaf_ents_p(leaf);
ltp = xfs_dir2_leaf_tail_p(mp, leaf);
@ -198,7 +148,6 @@ xfs_dir3_leaf_verify(
{
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_dir2_leaf *leaf = bp->b_addr;
struct xfs_dir3_icleaf_hdr leafhdr;
ASSERT(magic == XFS_DIR2_LEAF1_MAGIC || magic == XFS_DIR2_LEAFN_MAGIC);
@ -220,8 +169,7 @@ xfs_dir3_leaf_verify(
return false;
}
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
return xfs_dir3_leaf_check_int(mp, NULL, &leafhdr, leaf);
return xfs_dir3_leaf_check_int(mp, NULL, NULL, leaf);
}
static void
@ -474,10 +422,10 @@ xfs_dir2_block_to_leaf(
/*
* Set the counts in the leaf header.
*/
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
leafhdr.count = be32_to_cpu(btp->count);
leafhdr.stale = be32_to_cpu(btp->stale);
xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
xfs_dir3_leaf_log_header(tp, dp, lbp);
/*
@ -706,7 +654,7 @@ xfs_dir2_leaf_addname(
leaf = lbp->b_addr;
ltp = xfs_dir2_leaf_tail_p(mp, leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
bestsp = xfs_dir2_leaf_bests_p(ltp);
length = dp->d_ops->data_entsize(args->namelen);
@ -945,7 +893,7 @@ xfs_dir2_leaf_addname(
/*
* Log the leaf fields and give up the buffers.
*/
xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
xfs_dir3_leaf_log_header(tp, dp, lbp);
xfs_dir3_leaf_log_ents(tp, dp, lbp, lfloglow, lfloghigh);
xfs_dir3_leaf_check(dp, lbp);
@ -968,6 +916,7 @@ xfs_dir3_leaf_compact(
int loglow; /* first leaf entry to log */
int to; /* target leaf index */
struct xfs_dir2_leaf_entry *ents;
struct xfs_inode *dp = args->dp;
leaf = bp->b_addr;
if (!leafhdr->stale)
@ -976,7 +925,7 @@ xfs_dir3_leaf_compact(
/*
* Compress out the stale entries in place.
*/
ents = args->dp->d_ops->leaf_ents_p(leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
for (from = to = 0, loglow = -1; from < leafhdr->count; from++) {
if (ents[from].address == cpu_to_be32(XFS_DIR2_NULL_DATAPTR))
continue;
@ -997,11 +946,10 @@ xfs_dir3_leaf_compact(
leafhdr->count -= leafhdr->stale;
leafhdr->stale = 0;
xfs_dir3_leaf_hdr_to_disk(leaf, leafhdr);
xfs_dir3_leaf_log_header(args->trans, args->dp, bp);
dp->d_ops->leaf_hdr_to_disk(leaf, leafhdr);
xfs_dir3_leaf_log_header(args->trans, dp, bp);
if (loglow != -1)
xfs_dir3_leaf_log_ents(args->trans, args->dp, bp,
loglow, to - 1);
xfs_dir3_leaf_log_ents(args->trans, dp, bp, loglow, to - 1);
}
/*
@ -1290,7 +1238,7 @@ xfs_dir2_leaf_lookup_int(
leaf = lbp->b_addr;
xfs_dir3_leaf_check(dp, lbp);
ents = dp->d_ops->leaf_ents_p(leaf);
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
/*
* Look for the first leaf entry with our hash value.
@ -1425,7 +1373,7 @@ xfs_dir2_leaf_removename(
hdr = dbp->b_addr;
xfs_dir3_data_check(dp, dbp);
bf = dp->d_ops->data_bestfree_p(hdr);
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
/*
* Point to the leaf entry, use that to point to the data entry.
@ -1449,7 +1397,7 @@ xfs_dir2_leaf_removename(
* We just mark the leaf entry stale by putting a null in it.
*/
leafhdr.stale++;
xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
xfs_dir3_leaf_log_header(tp, dp, lbp);
lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
@ -1602,7 +1550,7 @@ xfs_dir2_leaf_search_hash(
leaf = lbp->b_addr;
ents = args->dp->d_ops->leaf_ents_p(leaf);
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
args->dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
/*
* Note, the table cannot be empty, so we have to go through the loop.
@ -1791,7 +1739,7 @@ xfs_dir2_node_to_leaf(
return 0;
lbp = state->path.blk[0].bp;
leaf = lbp->b_addr;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ASSERT(leafhdr.magic == XFS_DIR2_LEAFN_MAGIC ||
leafhdr.magic == XFS_DIR3_LEAFN_MAGIC);
@ -1803,7 +1751,7 @@ xfs_dir2_node_to_leaf(
if (error)
return error;
free = fbp->b_addr;
xfs_dir3_free_hdr_from_disk(&freehdr, free);
dp->d_ops->free_hdr_from_disk(&freehdr, free);
ASSERT(!freehdr.firstdb);
@ -1840,7 +1788,7 @@ xfs_dir2_node_to_leaf(
memcpy(xfs_dir2_leaf_bests_p(ltp), xfs_dir3_free_bests_p(mp, free),
freehdr.nvalid * sizeof(xfs_dir2_data_off_t));
xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
xfs_dir3_leaf_log_header(tp, dp, lbp);
xfs_dir3_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
xfs_dir3_leaf_log_tail(tp, lbp);

126
fs/xfs/xfs_dir2_node.c
View File

@ -68,7 +68,7 @@ xfs_dir3_leafn_check(
struct xfs_dir2_leaf *leaf = bp->b_addr;
struct xfs_dir3_icleaf_hdr leafhdr;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
if (leafhdr.magic == XFS_DIR3_LEAFN_MAGIC) {
struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr;
@ -192,53 +192,6 @@ xfs_dir2_free_try_read(
return __xfs_dir3_free_read(tp, dp, fbno, -2, bpp);
}
void
xfs_dir3_free_hdr_from_disk(
struct xfs_dir3_icfree_hdr *to,
struct xfs_dir2_free *from)
{
if (from->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC)) {
to->magic = be32_to_cpu(from->hdr.magic);
to->firstdb = be32_to_cpu(from->hdr.firstdb);
to->nvalid = be32_to_cpu(from->hdr.nvalid);
to->nused = be32_to_cpu(from->hdr.nused);
} else {
struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)from;
to->magic = be32_to_cpu(hdr3->hdr.magic);
to->firstdb = be32_to_cpu(hdr3->firstdb);
to->nvalid = be32_to_cpu(hdr3->nvalid);
to->nused = be32_to_cpu(hdr3->nused);
}
ASSERT(to->magic == XFS_DIR2_FREE_MAGIC ||
to->magic == XFS_DIR3_FREE_MAGIC);
}
static void
xfs_dir3_free_hdr_to_disk(
struct xfs_dir2_free *to,
struct xfs_dir3_icfree_hdr *from)
{
ASSERT(from->magic == XFS_DIR2_FREE_MAGIC ||
from->magic == XFS_DIR3_FREE_MAGIC);
if (from->magic == XFS_DIR2_FREE_MAGIC) {
to->hdr.magic = cpu_to_be32(from->magic);
to->hdr.firstdb = cpu_to_be32(from->firstdb);
to->hdr.nvalid = cpu_to_be32(from->nvalid);
to->hdr.nused = cpu_to_be32(from->nused);
} else {
struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)to;
hdr3->hdr.magic = cpu_to_be32(from->magic);
hdr3->firstdb = cpu_to_be32(from->firstdb);
hdr3->nvalid = cpu_to_be32(from->nvalid);
hdr3->nused = cpu_to_be32(from->nused);
}
}
static int
xfs_dir3_free_get_buf(
struct xfs_trans *tp,
@ -276,7 +229,7 @@ xfs_dir3_free_get_buf(
uuid_copy(&hdr3->hdr.uuid, &mp->m_sb.sb_uuid);
} else
hdr.magic = XFS_DIR2_FREE_MAGIC;
xfs_dir3_free_hdr_to_disk(bp->b_addr, &hdr);
dp->d_ops->free_hdr_to_disk(bp->b_addr, &hdr);
*bpp = bp;
return 0;
}
@ -368,7 +321,7 @@ xfs_dir2_leaf_to_node(
return error;
free = fbp->b_addr;
xfs_dir3_free_hdr_from_disk(&freehdr, free);
dp->d_ops->free_hdr_from_disk(&freehdr, free);
leaf = lbp->b_addr;
ltp = xfs_dir2_leaf_tail_p(mp, leaf);
ASSERT(be32_to_cpu(ltp->bestcount) <=
@ -392,7 +345,7 @@ xfs_dir2_leaf_to_node(
freehdr.nused = n;
freehdr.nvalid = be32_to_cpu(ltp->bestcount);
xfs_dir3_free_hdr_to_disk(fbp->b_addr, &freehdr);
dp->d_ops->free_hdr_to_disk(fbp->b_addr, &freehdr);
xfs_dir2_free_log_bests(tp, fbp, 0, freehdr.nvalid - 1);
xfs_dir2_free_log_header(tp, fbp);
@ -442,7 +395,7 @@ xfs_dir2_leafn_add(
mp = dp->i_mount;
tp = args->trans;
leaf = bp->b_addr;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
/*
@ -497,7 +450,7 @@ xfs_dir2_leafn_add(
lep->address = cpu_to_be32(xfs_dir2_db_off_to_dataptr(mp,
args->blkno, args->index));
xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
xfs_dir3_leaf_log_header(tp, dp, bp);
xfs_dir3_leaf_log_ents(tp, dp, bp, lfloglow, lfloghigh);
xfs_dir3_leaf_check(dp, bp);
@ -507,20 +460,20 @@ xfs_dir2_leafn_add(
#ifdef DEBUG
static void
xfs_dir2_free_hdr_check(
struct xfs_mount *mp,
struct xfs_inode *dp,
struct xfs_buf *bp,
xfs_dir2_db_t db)
{
struct xfs_dir3_icfree_hdr hdr;
xfs_dir3_free_hdr_from_disk(&hdr, bp->b_addr);
dp->d_ops->free_hdr_from_disk(&hdr, bp->b_addr);
ASSERT((hdr.firstdb % xfs_dir3_free_max_bests(mp)) == 0);
ASSERT((hdr.firstdb % xfs_dir3_free_max_bests(dp->i_mount)) == 0);
ASSERT(hdr.firstdb <= db);
ASSERT(db < hdr.firstdb + hdr.nvalid);
}
#else
#define xfs_dir2_free_hdr_check(mp, dp, db)
#define xfs_dir2_free_hdr_check(dp, bp, db)
#endif /* DEBUG */
/*
@ -537,7 +490,7 @@ xfs_dir2_leafn_lasthash(
struct xfs_dir2_leaf_entry *ents;
struct xfs_dir3_icleaf_hdr leafhdr;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ASSERT(leafhdr.magic == XFS_DIR2_LEAFN_MAGIC ||
leafhdr.magic == XFS_DIR3_LEAFN_MAGIC);
@ -584,7 +537,7 @@ xfs_dir2_leafn_lookup_for_addname(
tp = args->trans;
mp = dp->i_mount;
leaf = bp->b_addr;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
xfs_dir3_leaf_check(dp, bp);
@ -655,7 +608,7 @@ xfs_dir2_leafn_lookup_for_addname(
return error;
free = curbp->b_addr;
xfs_dir2_free_hdr_check(mp, curbp, curdb);
xfs_dir2_free_hdr_check(dp, curbp, curdb);
}
/*
* Get the index for our entry.
@ -734,7 +687,7 @@ xfs_dir2_leafn_lookup_for_entry(
tp = args->trans;
mp = dp->i_mount;
leaf = bp->b_addr;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
xfs_dir3_leaf_check(dp, bp);
@ -969,8 +922,8 @@ xfs_dir2_leafn_order(
struct xfs_dir3_icleaf_hdr hdr1;
struct xfs_dir3_icleaf_hdr hdr2;
xfs_dir3_leaf_hdr_from_disk(&hdr1, leaf1);
xfs_dir3_leaf_hdr_from_disk(&hdr2, leaf2);
dp->d_ops->leaf_hdr_from_disk(&hdr1, leaf1);
dp->d_ops->leaf_hdr_from_disk(&hdr2, leaf2);
ents1 = dp->d_ops->leaf_ents_p(leaf1);
ents2 = dp->d_ops->leaf_ents_p(leaf2);
@ -1025,8 +978,8 @@ xfs_dir2_leafn_rebalance(
}
leaf1 = blk1->bp->b_addr;
leaf2 = blk2->bp->b_addr;
xfs_dir3_leaf_hdr_from_disk(&hdr1, leaf1);
xfs_dir3_leaf_hdr_from_disk(&hdr2, leaf2);
dp->d_ops->leaf_hdr_from_disk(&hdr1, leaf1);
dp->d_ops->leaf_hdr_from_disk(&hdr2, leaf2);
ents1 = dp->d_ops->leaf_ents_p(leaf1);
ents2 = dp->d_ops->leaf_ents_p(leaf2);
@ -1074,8 +1027,8 @@ xfs_dir2_leafn_rebalance(
ASSERT(hdr1.stale + hdr2.stale == oldstale);
/* log the changes made when moving the entries */
xfs_dir3_leaf_hdr_to_disk(leaf1, &hdr1);
xfs_dir3_leaf_hdr_to_disk(leaf2, &hdr2);
dp->d_ops->leaf_hdr_to_disk(leaf1, &hdr1);
dp->d_ops->leaf_hdr_to_disk(leaf2, &hdr2);
xfs_dir3_leaf_log_header(args->trans, dp, blk1->bp);
xfs_dir3_leaf_log_header(args->trans, dp, blk2->bp);
@ -1124,8 +1077,9 @@ xfs_dir3_data_block_free(
int logfree = 0;
__be16 *bests;
struct xfs_dir3_icfree_hdr freehdr;
struct xfs_inode *dp = args->dp;
xfs_dir3_free_hdr_from_disk(&freehdr, free);
dp->d_ops->free_hdr_from_disk(&freehdr, free);
bests = xfs_dir3_free_bests_p(tp->t_mountp, free);
if (hdr) {
@ -1161,7 +1115,7 @@ xfs_dir3_data_block_free(
logfree = 1;
}
xfs_dir3_free_hdr_to_disk(free, &freehdr);
dp->d_ops->free_hdr_to_disk(free, &freehdr);
xfs_dir2_free_log_header(tp, fbp);
/*
@ -1226,7 +1180,7 @@ xfs_dir2_leafn_remove(
tp = args->trans;
mp = dp->i_mount;
leaf = bp->b_addr;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
/*
@ -1247,7 +1201,7 @@ xfs_dir2_leafn_remove(
* Log the leaf block changes.
*/
leafhdr.stale++;
xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
xfs_dir3_leaf_log_header(tp, dp, bp);
lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
@ -1298,7 +1252,7 @@ xfs_dir2_leafn_remove(
#ifdef DEBUG
{
struct xfs_dir3_icfree_hdr freehdr;
xfs_dir3_free_hdr_from_disk(&freehdr, free);
dp->d_ops->free_hdr_from_disk(&freehdr, free);
ASSERT(freehdr.firstdb == xfs_dir3_free_max_bests(mp) *
(fdb - XFS_DIR2_FREE_FIRSTDB(mp)));
}
@ -1449,7 +1403,7 @@ xfs_dir2_leafn_toosmall(
*/
blk = &state->path.blk[state->path.active - 1];
leaf = blk->bp->b_addr;
xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
xfs_dir3_leaf_check(dp, blk->bp);
@ -1511,7 +1465,7 @@ xfs_dir2_leafn_toosmall(
bytes = state->blocksize - (state->blocksize >> 2);
leaf = bp->b_addr;
xfs_dir3_leaf_hdr_from_disk(&hdr2, leaf);
dp->d_ops->leaf_hdr_from_disk(&hdr2, leaf);
ents = dp->d_ops->leaf_ents_p(leaf);
count += hdr2.count - hdr2.stale;
bytes -= count * sizeof(ents[0]);
@ -1574,10 +1528,10 @@ xfs_dir2_leafn_unbalance(
drop_leaf = drop_blk->bp->b_addr;
save_leaf = save_blk->bp->b_addr;
xfs_dir3_leaf_hdr_from_disk(&savehdr, save_leaf);
xfs_dir3_leaf_hdr_from_disk(&drophdr, drop_leaf);
sents = args->dp->d_ops->leaf_ents_p(save_leaf);
dents = args->dp->d_ops->leaf_ents_p(drop_leaf);
dp->d_ops->leaf_hdr_from_disk(&savehdr, save_leaf);
dp->d_ops->leaf_hdr_from_disk(&drophdr, drop_leaf);
sents = dp->d_ops->leaf_ents_p(save_leaf);
dents = dp->d_ops->leaf_ents_p(drop_leaf);
/*
* If there are any stale leaf entries, take this opportunity
@ -1603,8 +1557,8 @@ xfs_dir2_leafn_unbalance(
save_blk->hashval = be32_to_cpu(sents[savehdr.count - 1].hashval);
/* log the changes made when moving the entries */
xfs_dir3_leaf_hdr_to_disk(save_leaf, &savehdr);
xfs_dir3_leaf_hdr_to_disk(drop_leaf, &drophdr);
dp->d_ops->leaf_hdr_to_disk(save_leaf, &savehdr);
dp->d_ops->leaf_hdr_to_disk(drop_leaf, &drophdr);
xfs_dir3_leaf_log_header(args->trans, dp, save_blk->bp);
xfs_dir3_leaf_log_header(args->trans, dp, drop_blk->bp);
@ -1735,7 +1689,7 @@ xfs_dir2_node_addname_int(
free = fbp->b_addr;
findex = fblk->index;
bests = xfs_dir3_free_bests_p(mp, free);
xfs_dir3_free_hdr_from_disk(&freehdr, free);
dp->d_ops->free_hdr_from_disk(&freehdr, free);
/*
* This means the free entry showed that the data block had
@ -1828,7 +1782,7 @@ xfs_dir2_node_addname_int(
* there, so we have to do it here to avoid warnings. Blech.
*/
bests = xfs_dir3_free_bests_p(mp, free);
xfs_dir3_free_hdr_from_disk(&freehdr, free);
dp->d_ops->free_hdr_from_disk(&freehdr, free);
if (be16_to_cpu(bests[findex]) != NULLDATAOFF &&
be16_to_cpu(bests[findex]) >= length)
dbno = freehdr.firstdb + findex;
@ -1927,7 +1881,7 @@ xfs_dir2_node_addname_int(
return error;
free = fbp->b_addr;
bests = xfs_dir3_free_bests_p(mp, free);
xfs_dir3_free_hdr_from_disk(&freehdr, free);
dp->d_ops->free_hdr_from_disk(&freehdr, free);
/*
* Remember the first slot as our empty slot.
@ -1937,7 +1891,7 @@ xfs_dir2_node_addname_int(
} else {
free = fbp->b_addr;
bests = xfs_dir3_free_bests_p(mp, free);
xfs_dir3_free_hdr_from_disk(&freehdr, free);
dp->d_ops->free_hdr_from_disk(&freehdr, free);
}
/*
@ -1962,7 +1916,7 @@ xfs_dir2_node_addname_int(
*/
if (bests[findex] == cpu_to_be16(NULLDATAOFF)) {
freehdr.nused++;
xfs_dir3_free_hdr_to_disk(fbp->b_addr, &freehdr);
dp->d_ops->free_hdr_to_disk(fbp->b_addr, &freehdr);
xfs_dir2_free_log_header(tp, fbp);
}
/*
@ -2294,7 +2248,7 @@ xfs_dir2_node_trim_free(
if (!bp)
return 0;
free = bp->b_addr;
xfs_dir3_free_hdr_from_disk(&freehdr, free);
dp->d_ops->free_hdr_from_disk(&freehdr, free);
/*
* If there are used entries, there's nothing to do.

4
fs/xfs/xfs_dir2_priv.h
View File

@ -94,10 +94,6 @@ xfs_dir3_leaf_find_entry(struct xfs_dir3_icleaf_hdr *leafhdr,
int lowstale, int highstale, int *lfloglow, int *lfloghigh);
extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state);
extern void xfs_dir3_leaf_hdr_from_disk(struct xfs_dir3_icleaf_hdr *to,
struct xfs_dir2_leaf *from);
extern void xfs_dir3_leaf_hdr_to_disk(struct xfs_dir2_leaf *to,
struct xfs_dir3_icleaf_hdr *from);
extern bool xfs_dir3_leaf_check_int(struct xfs_mount *mp, struct xfs_inode *dp,
struct xfs_dir3_icleaf_hdr *hdr, struct xfs_dir2_leaf *leaf);