/*
* Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * Copyright (c) 2013 Red Hat, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-
-#include <xfs.h>
+#include "libxfs_priv.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_bit.h"
+#include "xfs_mount.h"
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir2.h"
+#include "xfs_dir2_priv.h"
+#include "xfs_inode.h"
+#include "xfs_trans.h"
+#include "xfs_alloc.h"
+#include "xfs_bmap.h"
+#include "xfs_attr_leaf.h"
+#include "xfs_trace.h"
+#include "xfs_cksum.h"
/*
* xfs_da_btree.c
/*
* Routines used for growing the Btree.
*/
-STATIC int xfs_da_root_split(xfs_da_state_t *state,
+STATIC int xfs_da3_root_split(xfs_da_state_t *state,
xfs_da_state_blk_t *existing_root,
xfs_da_state_blk_t *new_child);
-STATIC int xfs_da_node_split(xfs_da_state_t *state,
+STATIC int xfs_da3_node_split(xfs_da_state_t *state,
xfs_da_state_blk_t *existing_blk,
xfs_da_state_blk_t *split_blk,
xfs_da_state_blk_t *blk_to_add,
int treelevel,
int *result);
-STATIC void xfs_da_node_rebalance(xfs_da_state_t *state,
+STATIC void xfs_da3_node_rebalance(xfs_da_state_t *state,
xfs_da_state_blk_t *node_blk_1,
xfs_da_state_blk_t *node_blk_2);
-STATIC void xfs_da_node_add(xfs_da_state_t *state,
+STATIC void xfs_da3_node_add(xfs_da_state_t *state,
xfs_da_state_blk_t *old_node_blk,
xfs_da_state_blk_t *new_node_blk);
/*
* Routines used for shrinking the Btree.
*/
-STATIC int xfs_da_root_join(xfs_da_state_t *state,
+STATIC int xfs_da3_root_join(xfs_da_state_t *state,
xfs_da_state_blk_t *root_blk);
-STATIC int xfs_da_node_toosmall(xfs_da_state_t *state, int *retval);
-STATIC void xfs_da_node_remove(xfs_da_state_t *state,
+STATIC int xfs_da3_node_toosmall(xfs_da_state_t *state, int *retval);
+STATIC void xfs_da3_node_remove(xfs_da_state_t *state,
xfs_da_state_blk_t *drop_blk);
-STATIC void xfs_da_node_unbalance(xfs_da_state_t *state,
+STATIC void xfs_da3_node_unbalance(xfs_da_state_t *state,
xfs_da_state_blk_t *src_node_blk,
xfs_da_state_blk_t *dst_node_blk);
/*
* Utility routines.
*/
-STATIC uint xfs_da_node_lasthash(struct xfs_buf *bp, int *count);
-STATIC int xfs_da_node_order(struct xfs_buf *node1_bp,
- struct xfs_buf *node2_bp);
-STATIC int xfs_da_blk_unlink(xfs_da_state_t *state,
+STATIC int xfs_da3_blk_unlink(xfs_da_state_t *state,
xfs_da_state_blk_t *drop_blk,
xfs_da_state_blk_t *save_blk);
-STATIC void xfs_da_state_kill_altpath(xfs_da_state_t *state);
-static void
-xfs_da_node_verify(
+
+kmem_zone_t *xfs_da_state_zone; /* anchor for state struct zone */
+
+/*
+ * Allocate a dir-state structure.
+ * We don't put them on the stack since they're large.
+ */
+xfs_da_state_t *
+xfs_da_state_alloc(void)
+{
+ return kmem_zone_zalloc(xfs_da_state_zone, KM_NOFS);
+}
+
+/*
+ * Kill the altpath contents of a da-state structure.
+ */
+STATIC void
+xfs_da_state_kill_altpath(xfs_da_state_t *state)
+{
+ int i;
+
+ for (i = 0; i < state->altpath.active; i++)
+ state->altpath.blk[i].bp = NULL;
+ state->altpath.active = 0;
+}
+
+/*
+ * Free a da-state structure.
+ */
+void
+xfs_da_state_free(xfs_da_state_t *state)
+{
+ xfs_da_state_kill_altpath(state);
+#ifdef DEBUG
+ memset((char *)state, 0, sizeof(*state));
+#endif /* DEBUG */
+ kmem_zone_free(xfs_da_state_zone, state);
+}
+
+static xfs_failaddr_t
+xfs_da3_node_verify(
struct xfs_buf *bp)
{
struct xfs_mount *mp = bp->b_target->bt_mount;
- struct xfs_da_node_hdr *hdr = bp->b_addr;
- int block_ok = 0;
-
- block_ok = hdr->info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC);
- block_ok = block_ok &&
- be16_to_cpu(hdr->level) > 0 &&
- be16_to_cpu(hdr->count) > 0 ;
- if (!block_ok) {
- XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, hdr);
- xfs_buf_ioerror(bp, EFSCORRUPTED);
+ struct xfs_da_intnode *hdr = bp->b_addr;
+ struct xfs_da3_icnode_hdr ichdr;
+ const struct xfs_dir_ops *ops;
+
+ 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;
+
+ if (ichdr.magic != XFS_DA3_NODE_MAGIC)
+ return __this_address;
+
+ if (!uuid_equal(&hdr3->info.uuid, &mp->m_sb.sb_meta_uuid))
+ return __this_address;
+ if (be64_to_cpu(hdr3->info.blkno) != bp->b_bn)
+ return __this_address;
+ if (!xfs_log_check_lsn(mp, be64_to_cpu(hdr3->info.lsn)))
+ return __this_address;
+ } else {
+ if (ichdr.magic != XFS_DA_NODE_MAGIC)
+ return __this_address;
}
+ if (ichdr.level == 0)
+ return __this_address;
+ if (ichdr.level > XFS_DA_NODE_MAXDEPTH)
+ return __this_address;
+ if (ichdr.count == 0)
+ return __this_address;
+
+ /*
+ * we don't know if the node is for and attribute or directory tree,
+ * so only fail if the count is outside both bounds
+ */
+ if (ichdr.count > mp->m_dir_geo->node_ents &&
+ ichdr.count > mp->m_attr_geo->node_ents)
+ return __this_address;
+ /* XXX: hash order check? */
+
+ return NULL;
}
static void
-xfs_da_node_write_verify(
+xfs_da3_node_write_verify(
struct xfs_buf *bp)
{
- xfs_da_node_verify(bp);
+ struct xfs_mount *mp = bp->b_target->bt_mount;
+ struct xfs_buf_log_item *bip = bp->b_log_item;
+ struct xfs_da3_node_hdr *hdr3 = bp->b_addr;
+ xfs_failaddr_t fa;
+
+ fa = xfs_da3_node_verify(bp);
+ if (fa) {
+ xfs_verifier_error(bp, -EFSCORRUPTED, fa);
+ return;
+ }
+
+ if (!xfs_sb_version_hascrc(&mp->m_sb))
+ return;
+
+ if (bip)
+ hdr3->info.lsn = cpu_to_be64(bip->bli_item.li_lsn);
+
+ xfs_buf_update_cksum(bp, XFS_DA3_NODE_CRC_OFF);
}
/*
* format of the block being read.
*/
static void
-xfs_da_node_read_verify(
+xfs_da3_node_read_verify(
struct xfs_buf *bp)
{
- struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_da_blkinfo *info = bp->b_addr;
+ xfs_failaddr_t fa;
switch (be16_to_cpu(info->magic)) {
+ case XFS_DA3_NODE_MAGIC:
+ if (!xfs_buf_verify_cksum(bp, XFS_DA3_NODE_CRC_OFF)) {
+ xfs_verifier_error(bp, -EFSBADCRC,
+ __this_address);
+ break;
+ }
+ /* fall through */
case XFS_DA_NODE_MAGIC:
- xfs_da_node_verify(bp);
- break;
+ fa = xfs_da3_node_verify(bp);
+ if (fa)
+ xfs_verifier_error(bp, -EFSCORRUPTED, fa);
+ return;
case XFS_ATTR_LEAF_MAGIC:
- bp->b_ops = &xfs_attr_leaf_buf_ops;
+ case XFS_ATTR3_LEAF_MAGIC:
+ bp->b_ops = &xfs_attr3_leaf_buf_ops;
bp->b_ops->verify_read(bp);
return;
case XFS_DIR2_LEAFN_MAGIC:
- bp->b_ops = &xfs_dir2_leafn_buf_ops;
+ case XFS_DIR3_LEAFN_MAGIC:
+ bp->b_ops = &xfs_dir3_leafn_buf_ops;
bp->b_ops->verify_read(bp);
return;
default:
- XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW,
- mp, info);
- xfs_buf_ioerror(bp, EFSCORRUPTED);
+ xfs_verifier_error(bp, -EFSCORRUPTED, __this_address);
break;
}
}
-const struct xfs_buf_ops xfs_da_node_buf_ops = {
- .verify_read = xfs_da_node_read_verify,
- .verify_write = xfs_da_node_write_verify,
-};
+/* Verify the structure of a da3 block. */
+static xfs_failaddr_t
+xfs_da3_node_verify_struct(
+ struct xfs_buf *bp)
+{
+ struct xfs_da_blkinfo *info = bp->b_addr;
+
+ switch (be16_to_cpu(info->magic)) {
+ case XFS_DA3_NODE_MAGIC:
+ case XFS_DA_NODE_MAGIC:
+ return xfs_da3_node_verify(bp);
+ case XFS_ATTR_LEAF_MAGIC:
+ case XFS_ATTR3_LEAF_MAGIC:
+ bp->b_ops = &xfs_attr3_leaf_buf_ops;
+ return bp->b_ops->verify_struct(bp);
+ case XFS_DIR2_LEAFN_MAGIC:
+ case XFS_DIR3_LEAFN_MAGIC:
+ bp->b_ops = &xfs_dir3_leafn_buf_ops;
+ return bp->b_ops->verify_struct(bp);
+ default:
+ return __this_address;
+ }
+}
+const struct xfs_buf_ops xfs_da3_node_buf_ops = {
+ .name = "xfs_da3_node",
+ .verify_read = xfs_da3_node_read_verify,
+ .verify_write = xfs_da3_node_write_verify,
+ .verify_struct = xfs_da3_node_verify_struct,
+};
int
-xfs_da_node_read(
+xfs_da3_node_read(
struct xfs_trans *tp,
struct xfs_inode *dp,
xfs_dablk_t bno,
struct xfs_buf **bpp,
int which_fork)
{
- return xfs_da_read_buf(tp, dp, bno, mappedbno, bpp,
- which_fork, &xfs_da_node_buf_ops);
+ int err;
+
+ err = xfs_da_read_buf(tp, dp, bno, mappedbno, bpp,
+ which_fork, &xfs_da3_node_buf_ops);
+ if (!err && tp && *bpp) {
+ struct xfs_da_blkinfo *info = (*bpp)->b_addr;
+ int type;
+
+ switch (be16_to_cpu(info->magic)) {
+ case XFS_DA_NODE_MAGIC:
+ case XFS_DA3_NODE_MAGIC:
+ type = XFS_BLFT_DA_NODE_BUF;
+ break;
+ case XFS_ATTR_LEAF_MAGIC:
+ case XFS_ATTR3_LEAF_MAGIC:
+ type = XFS_BLFT_ATTR_LEAF_BUF;
+ break;
+ case XFS_DIR2_LEAFN_MAGIC:
+ case XFS_DIR3_LEAFN_MAGIC:
+ type = XFS_BLFT_DIR_LEAFN_BUF;
+ break;
+ default:
+ XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW,
+ tp->t_mountp, info, sizeof(*info));
+ xfs_trans_brelse(tp, *bpp);
+ *bpp = NULL;
+ return -EFSCORRUPTED;
+ }
+ xfs_trans_buf_set_type(tp, *bpp, type);
+ }
+ return err;
}
/*========================================================================
* Create the initial contents of an intermediate node.
*/
int
-xfs_da_node_create(xfs_da_args_t *args, xfs_dablk_t blkno, int level,
- struct xfs_buf **bpp, int whichfork)
+xfs_da3_node_create(
+ struct xfs_da_args *args,
+ xfs_dablk_t blkno,
+ int level,
+ struct xfs_buf **bpp,
+ int whichfork)
{
- xfs_da_intnode_t *node;
- struct xfs_buf *bp;
- int error;
- xfs_trans_t *tp;
+ struct xfs_da_intnode *node;
+ struct xfs_trans *tp = args->trans;
+ struct xfs_mount *mp = tp->t_mountp;
+ 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);
- tp = args->trans;
- 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);
- ASSERT(bp != NULL);
+ return error;
+ bp->b_ops = &xfs_da3_node_buf_ops;
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DA_NODE_BUF);
node = bp->b_addr;
- node->hdr.info.forw = 0;
- node->hdr.info.back = 0;
- node->hdr.info.magic = cpu_to_be16(XFS_DA_NODE_MAGIC);
- node->hdr.info.pad = 0;
- node->hdr.count = 0;
- node->hdr.level = cpu_to_be16(level);
+ if (xfs_sb_version_hascrc(&mp->m_sb)) {
+ struct xfs_da3_node_hdr *hdr3 = bp->b_addr;
+
+ memset(hdr3, 0, sizeof(struct xfs_da3_node_hdr));
+ ichdr.magic = XFS_DA3_NODE_MAGIC;
+ hdr3->info.blkno = cpu_to_be64(bp->b_bn);
+ hdr3->info.owner = cpu_to_be64(args->dp->i_ino);
+ uuid_copy(&hdr3->info.uuid, &mp->m_sb.sb_meta_uuid);
+ } else {
+ ichdr.magic = XFS_DA_NODE_MAGIC;
+ }
+ ichdr.level = level;
+
+ dp->d_ops->node_hdr_to_disk(node, &ichdr);
xfs_trans_log_buf(tp, bp,
- XFS_DA_LOGRANGE(node, &node->hdr, sizeof(node->hdr)));
+ XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size));
- bp->b_ops = &xfs_da_node_buf_ops;
*bpp = bp;
- return(0);
+ return 0;
}
/*
* intermediate nodes, rebalance, etc.
*/
int /* error */
-xfs_da_split(xfs_da_state_t *state)
+xfs_da3_split(
+ struct xfs_da_state *state)
{
- xfs_da_state_blk_t *oldblk, *newblk, *addblk;
- xfs_da_intnode_t *node;
- struct xfs_buf *bp;
- int max, action, error, i;
+ struct xfs_da_state_blk *oldblk;
+ struct xfs_da_state_blk *newblk;
+ struct xfs_da_state_blk *addblk;
+ struct xfs_da_intnode *node;
+ int max;
+ int action = 0;
+ int error;
+ int i;
trace_xfs_da_split(state->args);
*/
switch (oldblk->magic) {
case XFS_ATTR_LEAF_MAGIC:
- error = xfs_attr_leaf_split(state, oldblk, newblk);
- if ((error != 0) && (error != ENOSPC)) {
- return(error); /* GROT: attr is inconsistent */
+ error = xfs_attr3_leaf_split(state, oldblk, newblk);
+ if ((error != 0) && (error != -ENOSPC)) {
+ return error; /* GROT: attr is inconsistent */
}
if (!error) {
addblk = newblk;
break;
}
/*
- * Entry wouldn't fit, split the leaf again.
+ * Entry wouldn't fit, split the leaf again. The new
+ * extrablk will be consumed by xfs_da3_node_split if
+ * the node is split.
*/
state->extravalid = 1;
if (state->inleaf) {
state->extraafter = 0; /* before newblk */
trace_xfs_attr_leaf_split_before(state->args);
- error = xfs_attr_leaf_split(state, oldblk,
+ error = xfs_attr3_leaf_split(state, oldblk,
&state->extrablk);
} else {
state->extraafter = 1; /* after newblk */
trace_xfs_attr_leaf_split_after(state->args);
- error = xfs_attr_leaf_split(state, newblk,
+ error = xfs_attr3_leaf_split(state, newblk,
&state->extrablk);
}
if (error)
- return(error); /* GROT: attr inconsistent */
+ return error; /* GROT: attr inconsistent */
addblk = newblk;
break;
case XFS_DIR2_LEAFN_MAGIC:
addblk = newblk;
break;
case XFS_DA_NODE_MAGIC:
- error = xfs_da_node_split(state, oldblk, newblk, addblk,
+ error = xfs_da3_node_split(state, oldblk, newblk, addblk,
max - i, &action);
addblk->bp = NULL;
if (error)
- return(error); /* GROT: dir is inconsistent */
+ return error; /* GROT: dir is inconsistent */
/*
* Record the newly split block for the next time thru?
*/
/*
* Update the btree to show the new hashval for this child.
*/
- xfs_da_fixhashpath(state, &state->path);
+ xfs_da3_fixhashpath(state, &state->path);
}
if (!addblk)
- return(0);
+ return 0;
+
+ /*
+ * xfs_da3_node_split() should have consumed any extra blocks we added
+ * during a double leaf split in the attr fork. This is guaranteed as
+ * we can't be here if the attr fork only has a single leaf block.
+ */
+ ASSERT(state->extravalid == 0 ||
+ state->path.blk[max].magic == XFS_DIR2_LEAFN_MAGIC);
/*
* Split the root node.
*/
ASSERT(state->path.active == 0);
oldblk = &state->path.blk[0];
- error = xfs_da_root_split(state, oldblk, addblk);
+ error = xfs_da3_root_split(state, oldblk, addblk);
if (error) {
addblk->bp = NULL;
- return(error); /* GROT: dir is inconsistent */
+ return error; /* GROT: dir is inconsistent */
}
/*
- * Update pointers to the node which used to be block 0 and
- * just got bumped because of the addition of a new root node.
- * There might be three blocks involved if a double split occurred,
- * and the original block 0 could be at any position in the list.
+ * Update pointers to the node which used to be block 0 and just got
+ * bumped because of the addition of a new root node. Note that the
+ * original block 0 could be at any position in the list of blocks in
+ * the tree.
+ *
+ * Note: the magic numbers and sibling pointers are in the same physical
+ * place for both v2 and v3 headers (by design). Hence it doesn't matter
+ * which version of the xfs_da_intnode structure we use here as the
+ * result will be the same using either structure.
*/
-
node = oldblk->bp->b_addr;
if (node->hdr.info.forw) {
- if (be32_to_cpu(node->hdr.info.forw) == addblk->blkno) {
- bp = addblk->bp;
- } else {
- ASSERT(state->extravalid);
- bp = state->extrablk.bp;
- }
- node = bp->b_addr;
+ ASSERT(be32_to_cpu(node->hdr.info.forw) == addblk->blkno);
+ node = addblk->bp->b_addr;
node->hdr.info.back = cpu_to_be32(oldblk->blkno);
- xfs_trans_log_buf(state->args->trans, bp,
- XFS_DA_LOGRANGE(node, &node->hdr.info,
- sizeof(node->hdr.info)));
+ xfs_trans_log_buf(state->args->trans, addblk->bp,
+ XFS_DA_LOGRANGE(node, &node->hdr.info,
+ sizeof(node->hdr.info)));
}
node = oldblk->bp->b_addr;
if (node->hdr.info.back) {
- if (be32_to_cpu(node->hdr.info.back) == addblk->blkno) {
- bp = addblk->bp;
- } else {
- ASSERT(state->extravalid);
- bp = state->extrablk.bp;
- }
- node = bp->b_addr;
+ ASSERT(be32_to_cpu(node->hdr.info.back) == addblk->blkno);
+ node = addblk->bp->b_addr;
node->hdr.info.forw = cpu_to_be32(oldblk->blkno);
- xfs_trans_log_buf(state->args->trans, bp,
- XFS_DA_LOGRANGE(node, &node->hdr.info,
- sizeof(node->hdr.info)));
+ xfs_trans_log_buf(state->args->trans, addblk->bp,
+ XFS_DA_LOGRANGE(node, &node->hdr.info,
+ sizeof(node->hdr.info)));
}
addblk->bp = NULL;
- return(0);
+ return 0;
}
/*
* the EOF, extending the inode in process.
*/
STATIC int /* error */
-xfs_da_root_split(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
- xfs_da_state_blk_t *blk2)
+xfs_da3_root_split(
+ struct xfs_da_state *state,
+ struct xfs_da_state_blk *blk1,
+ struct xfs_da_state_blk *blk2)
{
- xfs_da_intnode_t *node, *oldroot;
- xfs_da_args_t *args;
- xfs_dablk_t blkno;
- struct xfs_buf *bp;
- int error, size;
- xfs_inode_t *dp;
- xfs_trans_t *tp;
- xfs_mount_t *mp;
- xfs_dir2_leaf_t *leaf;
+ struct xfs_da_intnode *node;
+ struct xfs_da_intnode *oldroot;
+ struct xfs_da_node_entry *btree;
+ struct xfs_da3_icnode_hdr nodehdr;
+ struct xfs_da_args *args;
+ struct xfs_buf *bp;
+ struct xfs_inode *dp;
+ struct xfs_trans *tp;
+ struct xfs_dir2_leaf *leaf;
+ xfs_dablk_t blkno;
+ int level;
+ int error;
+ int size;
trace_xfs_da_root_split(state->args);
* to a free space somewhere.
*/
args = state->args;
- ASSERT(args != NULL);
error = xfs_da_grow_inode(args, &blkno);
if (error)
- return(error);
+ return error;
+
dp = args->dp;
tp = args->trans;
- mp = state->mp;
error = xfs_da_get_buf(tp, dp, blkno, -1, &bp, args->whichfork);
if (error)
- return(error);
- ASSERT(bp != NULL);
+ return error;
node = bp->b_addr;
oldroot = blk1->bp->b_addr;
- if (oldroot->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC)) {
- size = (int)((char *)&oldroot->btree[be16_to_cpu(oldroot->hdr.count)] -
- (char *)oldroot);
+ if (oldroot->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC) ||
+ 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);
+ btree = dp->d_ops->node_tree_p(oldroot);
+ size = (int)((char *)&btree[icnodehdr.count] - (char *)oldroot);
+ level = icnodehdr.level;
+
+ /*
+ * we are about to copy oldroot to bp, so set up the type
+ * of bp while we know exactly what it will be.
+ */
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DA_NODE_BUF);
} else {
- ASSERT(oldroot->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC));
+ struct xfs_dir3_icleaf_hdr leafhdr;
+ struct xfs_dir2_leaf_entry *ents;
+
leaf = (xfs_dir2_leaf_t *)oldroot;
- size = (int)((char *)&leaf->ents[be16_to_cpu(leaf->hdr.count)] -
- (char *)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 ||
+ leafhdr.magic == XFS_DIR3_LEAFN_MAGIC);
+ size = (int)((char *)&ents[leafhdr.count] - (char *)leaf);
+ level = 0;
+
+ /*
+ * we are about to copy oldroot to bp, so set up the type
+ * of bp while we know exactly what it will be.
+ */
+ xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_LEAFN_BUF);
}
+
+ /*
+ * we can copy most of the information in the node from one block to
+ * another, but for CRC enabled headers we have to make sure that the
+ * block specific identifiers are kept intact. We update the buffer
+ * directly for this.
+ */
memcpy(node, oldroot, size);
+ if (oldroot->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC) ||
+ oldroot->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC)) {
+ struct xfs_da3_intnode *node3 = (struct xfs_da3_intnode *)node;
+
+ node3->hdr.info.blkno = cpu_to_be64(bp->b_bn);
+ }
xfs_trans_log_buf(tp, bp, 0, size - 1);
bp->b_ops = blk1->bp->b_ops;
+ xfs_trans_buf_copy_type(bp, blk1->bp);
blk1->bp = bp;
blk1->blkno = blkno;
/*
* Set up the new root node.
*/
- error = xfs_da_node_create(args,
- (args->whichfork == XFS_DATA_FORK) ? mp->m_dirleafblk : 0,
- be16_to_cpu(node->hdr.level) + 1, &bp, args->whichfork);
+ error = xfs_da3_node_create(args,
+ (args->whichfork == XFS_DATA_FORK) ? args->geo->leafblk : 0,
+ level + 1, &bp, args->whichfork);
if (error)
- return(error);
+ return error;
+
node = bp->b_addr;
- node->btree[0].hashval = cpu_to_be32(blk1->hashval);
- node->btree[0].before = cpu_to_be32(blk1->blkno);
- node->btree[1].hashval = cpu_to_be32(blk2->hashval);
- node->btree[1].before = cpu_to_be32(blk2->blkno);
- node->hdr.count = cpu_to_be16(2);
+ 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;
+ dp->d_ops->node_hdr_to_disk(node, &nodehdr);
#ifdef DEBUG
- if (oldroot->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC)) {
- ASSERT(blk1->blkno >= mp->m_dirleafblk &&
- blk1->blkno < mp->m_dirfreeblk);
- ASSERT(blk2->blkno >= mp->m_dirleafblk &&
- blk2->blkno < mp->m_dirfreeblk);
+ if (oldroot->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
+ oldroot->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC)) {
+ ASSERT(blk1->blkno >= args->geo->leafblk &&
+ blk1->blkno < args->geo->freeblk);
+ ASSERT(blk2->blkno >= args->geo->leafblk &&
+ blk2->blkno < args->geo->freeblk);
}
#endif
/* Header is already logged by xfs_da_node_create */
xfs_trans_log_buf(tp, bp,
- XFS_DA_LOGRANGE(node, node->btree,
- sizeof(xfs_da_node_entry_t) * 2));
+ XFS_DA_LOGRANGE(node, btree, sizeof(xfs_da_node_entry_t) * 2));
- return(0);
+ return 0;
}
/*
* Split the node, rebalance, then add the new entry.
*/
STATIC int /* error */
-xfs_da_node_split(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
- xfs_da_state_blk_t *newblk,
- xfs_da_state_blk_t *addblk,
- int treelevel, int *result)
+xfs_da3_node_split(
+ struct xfs_da_state *state,
+ struct xfs_da_state_blk *oldblk,
+ struct xfs_da_state_blk *newblk,
+ struct xfs_da_state_blk *addblk,
+ int treelevel,
+ int *result)
{
- xfs_da_intnode_t *node;
- xfs_dablk_t blkno;
- int newcount, error;
- int useextra;
+ struct xfs_da_intnode *node;
+ struct xfs_da3_icnode_hdr nodehdr;
+ xfs_dablk_t blkno;
+ 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;
- ASSERT(node->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
+ dp->d_ops->node_hdr_from_disk(&nodehdr, node);
/*
* With V2 dirs the extra block is data or freespace.
/*
* Do we have to split the node?
*/
- if ((be16_to_cpu(node->hdr.count) + newcount) > state->node_ents) {
+ if (nodehdr.count + newcount > state->args->geo->node_ents) {
/*
* Allocate a new node, add to the doubly linked chain of
* nodes, then move some of our excess entries into it.
*/
error = xfs_da_grow_inode(state->args, &blkno);
if (error)
- return(error); /* GROT: dir is inconsistent */
+ return error; /* GROT: dir is inconsistent */
- error = xfs_da_node_create(state->args, blkno, treelevel,
+ error = xfs_da3_node_create(state->args, blkno, treelevel,
&newblk->bp, state->args->whichfork);
if (error)
- return(error); /* GROT: dir is inconsistent */
+ return error; /* GROT: dir is inconsistent */
newblk->blkno = blkno;
newblk->magic = XFS_DA_NODE_MAGIC;
- xfs_da_node_rebalance(state, oldblk, newblk);
- error = xfs_da_blk_link(state, oldblk, newblk);
+ xfs_da3_node_rebalance(state, oldblk, newblk);
+ error = xfs_da3_blk_link(state, oldblk, newblk);
if (error)
- return(error);
+ return error;
*result = 1;
} else {
*result = 0;
* Insert the new entry(s) into the correct block
* (updating last hashval in the process).
*
- * xfs_da_node_add() inserts BEFORE the given index,
+ * xfs_da3_node_add() inserts BEFORE the given index,
* and as a result of using node_lookup_int() we always
* point to a valid entry (not after one), but a split
* operation always results in a new block whose hashvals
* If we had double-split op below us, then add the extra block too.
*/
node = oldblk->bp->b_addr;
- if (oldblk->index <= be16_to_cpu(node->hdr.count)) {
+ dp->d_ops->node_hdr_from_disk(&nodehdr, node);
+ if (oldblk->index <= nodehdr.count) {
oldblk->index++;
- xfs_da_node_add(state, oldblk, addblk);
+ xfs_da3_node_add(state, oldblk, addblk);
if (useextra) {
if (state->extraafter)
oldblk->index++;
- xfs_da_node_add(state, oldblk, &state->extrablk);
+ xfs_da3_node_add(state, oldblk, &state->extrablk);
state->extravalid = 0;
}
} else {
newblk->index++;
- xfs_da_node_add(state, newblk, addblk);
+ xfs_da3_node_add(state, newblk, addblk);
if (useextra) {
if (state->extraafter)
newblk->index++;
- xfs_da_node_add(state, newblk, &state->extrablk);
+ xfs_da3_node_add(state, newblk, &state->extrablk);
state->extravalid = 0;
}
}
- return(0);
+ return 0;
}
/*
* NOTE: if blk2 is empty, then it will get the upper half of blk1.
*/
STATIC void
-xfs_da_node_rebalance(xfs_da_state_t *state, xfs_da_state_blk_t *blk1,
- xfs_da_state_blk_t *blk2)
+xfs_da3_node_rebalance(
+ struct xfs_da_state *state,
+ struct xfs_da_state_blk *blk1,
+ struct xfs_da_state_blk *blk2)
{
- xfs_da_intnode_t *node1, *node2, *tmpnode;
- xfs_da_node_entry_t *btree_s, *btree_d;
- int count, tmp;
- xfs_trans_t *tp;
+ struct xfs_da_intnode *node1;
+ struct xfs_da_intnode *node2;
+ struct xfs_da_intnode *tmpnode;
+ struct xfs_da_node_entry *btree1;
+ struct xfs_da_node_entry *btree2;
+ struct xfs_da_node_entry *btree_s;
+ struct xfs_da_node_entry *btree_d;
+ struct xfs_da3_icnode_hdr nodehdr1;
+ struct xfs_da3_icnode_hdr nodehdr2;
+ struct xfs_trans *tp;
+ int count;
+ int tmp;
+ int swap = 0;
+ struct xfs_inode *dp = state->args->dp;
trace_xfs_da_node_rebalance(state->args);
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);
+ btree1 = dp->d_ops->node_tree_p(node1);
+ btree2 = dp->d_ops->node_tree_p(node2);
+
/*
* Figure out how many entries need to move, and in which direction.
* Swap the nodes around if that makes it simpler.
*/
- if ((be16_to_cpu(node1->hdr.count) > 0) && (be16_to_cpu(node2->hdr.count) > 0) &&
- ((be32_to_cpu(node2->btree[0].hashval) < be32_to_cpu(node1->btree[0].hashval)) ||
- (be32_to_cpu(node2->btree[be16_to_cpu(node2->hdr.count)-1].hashval) <
- be32_to_cpu(node1->btree[be16_to_cpu(node1->hdr.count)-1].hashval)))) {
+ if (nodehdr1.count > 0 && nodehdr2.count > 0 &&
+ ((be32_to_cpu(btree2[0].hashval) < be32_to_cpu(btree1[0].hashval)) ||
+ (be32_to_cpu(btree2[nodehdr2.count - 1].hashval) <
+ be32_to_cpu(btree1[nodehdr1.count - 1].hashval)))) {
tmpnode = node1;
node1 = node2;
node2 = tmpnode;
+ 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;
}
- ASSERT(node1->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
- ASSERT(node2->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
- count = (be16_to_cpu(node1->hdr.count) - be16_to_cpu(node2->hdr.count)) / 2;
+
+ count = (nodehdr1.count - nodehdr2.count) / 2;
if (count == 0)
return;
tp = state->args->trans;
/*
* Move elements in node2 up to make a hole.
*/
- if ((tmp = be16_to_cpu(node2->hdr.count)) > 0) {
+ tmp = nodehdr2.count;
+ if (tmp > 0) {
tmp *= (uint)sizeof(xfs_da_node_entry_t);
- btree_s = &node2->btree[0];
- btree_d = &node2->btree[count];
+ btree_s = &btree2[0];
+ btree_d = &btree2[count];
memmove(btree_d, btree_s, tmp);
}
* Move the req'd B-tree elements from high in node1 to
* low in node2.
*/
- be16_add_cpu(&node2->hdr.count, count);
+ nodehdr2.count += count;
tmp = count * (uint)sizeof(xfs_da_node_entry_t);
- btree_s = &node1->btree[be16_to_cpu(node1->hdr.count) - count];
- btree_d = &node2->btree[0];
+ btree_s = &btree1[nodehdr1.count - count];
+ btree_d = &btree2[0];
memcpy(btree_d, btree_s, tmp);
- be16_add_cpu(&node1->hdr.count, -count);
+ nodehdr1.count -= count;
} else {
/*
* Move the req'd B-tree elements from low in node2 to
*/
count = -count;
tmp = count * (uint)sizeof(xfs_da_node_entry_t);
- btree_s = &node2->btree[0];
- btree_d = &node1->btree[be16_to_cpu(node1->hdr.count)];
+ btree_s = &btree2[0];
+ btree_d = &btree1[nodehdr1.count];
memcpy(btree_d, btree_s, tmp);
- be16_add_cpu(&node1->hdr.count, count);
+ nodehdr1.count += count;
+
xfs_trans_log_buf(tp, blk1->bp,
XFS_DA_LOGRANGE(node1, btree_d, tmp));
/*
* Move elements in node2 down to fill the hole.
*/
- tmp = be16_to_cpu(node2->hdr.count) - count;
+ tmp = nodehdr2.count - count;
tmp *= (uint)sizeof(xfs_da_node_entry_t);
- btree_s = &node2->btree[count];
- btree_d = &node2->btree[0];
+ btree_s = &btree2[count];
+ btree_d = &btree2[0];
memmove(btree_d, btree_s, tmp);
- be16_add_cpu(&node2->hdr.count, -count);
+ nodehdr2.count -= count;
}
/*
* Log header of node 1 and all current bits of node 2.
*/
+ dp->d_ops->node_hdr_to_disk(node1, &nodehdr1);
xfs_trans_log_buf(tp, blk1->bp,
- XFS_DA_LOGRANGE(node1, &node1->hdr, sizeof(node1->hdr)));
+ XFS_DA_LOGRANGE(node1, &node1->hdr, dp->d_ops->node_hdr_size));
+
+ dp->d_ops->node_hdr_to_disk(node2, &nodehdr2);
xfs_trans_log_buf(tp, blk2->bp,
XFS_DA_LOGRANGE(node2, &node2->hdr,
- sizeof(node2->hdr) +
- sizeof(node2->btree[0]) * be16_to_cpu(node2->hdr.count)));
+ dp->d_ops->node_hdr_size +
+ (sizeof(btree2[0]) * nodehdr2.count)));
/*
* Record the last hashval from each block for upward propagation.
* (note: don't use the swapped node pointers)
*/
- node1 = blk1->bp->b_addr;
- node2 = blk2->bp->b_addr;
- blk1->hashval = be32_to_cpu(node1->btree[be16_to_cpu(node1->hdr.count)-1].hashval);
- blk2->hashval = be32_to_cpu(node2->btree[be16_to_cpu(node2->hdr.count)-1].hashval);
+ 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);
+ btree1 = dp->d_ops->node_tree_p(node1);
+ btree2 = dp->d_ops->node_tree_p(node2);
+ }
+ blk1->hashval = be32_to_cpu(btree1[nodehdr1.count - 1].hashval);
+ blk2->hashval = be32_to_cpu(btree2[nodehdr2.count - 1].hashval);
/*
* Adjust the expected index for insertion.
*/
- if (blk1->index >= be16_to_cpu(node1->hdr.count)) {
- blk2->index = blk1->index - be16_to_cpu(node1->hdr.count);
- blk1->index = be16_to_cpu(node1->hdr.count) + 1; /* make it invalid */
+ if (blk1->index >= nodehdr1.count) {
+ blk2->index = blk1->index - nodehdr1.count;
+ blk1->index = nodehdr1.count + 1; /* make it invalid */
}
}
* Add a new entry to an intermediate node.
*/
STATIC void
-xfs_da_node_add(xfs_da_state_t *state, xfs_da_state_blk_t *oldblk,
- xfs_da_state_blk_t *newblk)
+xfs_da3_node_add(
+ struct xfs_da_state *state,
+ struct xfs_da_state_blk *oldblk,
+ struct xfs_da_state_blk *newblk)
{
- xfs_da_intnode_t *node;
- xfs_da_node_entry_t *btree;
- int tmp;
+ struct xfs_da_intnode *node;
+ struct xfs_da3_icnode_hdr nodehdr;
+ struct xfs_da_node_entry *btree;
+ int tmp;
+ struct xfs_inode *dp = state->args->dp;
trace_xfs_da_node_add(state->args);
node = oldblk->bp->b_addr;
- ASSERT(node->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
- ASSERT((oldblk->index >= 0) && (oldblk->index <= be16_to_cpu(node->hdr.count)));
+ 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);
ASSERT(newblk->blkno != 0);
if (state->args->whichfork == XFS_DATA_FORK)
- ASSERT(newblk->blkno >= state->mp->m_dirleafblk &&
- newblk->blkno < state->mp->m_dirfreeblk);
+ ASSERT(newblk->blkno >= state->args->geo->leafblk &&
+ newblk->blkno < state->args->geo->freeblk);
/*
* We may need to make some room before we insert the new node.
*/
tmp = 0;
- btree = &node->btree[ oldblk->index ];
- if (oldblk->index < be16_to_cpu(node->hdr.count)) {
- tmp = (be16_to_cpu(node->hdr.count) - oldblk->index) * (uint)sizeof(*btree);
- memmove(btree + 1, btree, tmp);
+ if (oldblk->index < nodehdr.count) {
+ tmp = (nodehdr.count - oldblk->index) * (uint)sizeof(*btree);
+ memmove(&btree[oldblk->index + 1], &btree[oldblk->index], tmp);
}
- btree->hashval = cpu_to_be32(newblk->hashval);
- btree->before = cpu_to_be32(newblk->blkno);
+ btree[oldblk->index].hashval = cpu_to_be32(newblk->hashval);
+ btree[oldblk->index].before = cpu_to_be32(newblk->blkno);
xfs_trans_log_buf(state->args->trans, oldblk->bp,
- XFS_DA_LOGRANGE(node, btree, tmp + sizeof(*btree)));
- be16_add_cpu(&node->hdr.count, 1);
+ XFS_DA_LOGRANGE(node, &btree[oldblk->index],
+ tmp + sizeof(*btree)));
+
+ nodehdr.count += 1;
+ dp->d_ops->node_hdr_to_disk(node, &nodehdr);
xfs_trans_log_buf(state->args->trans, oldblk->bp,
- XFS_DA_LOGRANGE(node, &node->hdr, sizeof(node->hdr)));
+ XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size));
/*
* Copy the last hash value from the oldblk to propagate upwards.
*/
- oldblk->hashval = be32_to_cpu(node->btree[be16_to_cpu(node->hdr.count)-1 ].hashval);
+ oldblk->hashval = be32_to_cpu(btree[nodehdr.count - 1].hashval);
}
/*========================================================================
* possibly deallocating that block, etc...
*/
int
-xfs_da_join(xfs_da_state_t *state)
+xfs_da3_join(
+ struct xfs_da_state *state)
{
- xfs_da_state_blk_t *drop_blk, *save_blk;
- int action, error;
+ struct xfs_da_state_blk *drop_blk;
+ struct xfs_da_state_blk *save_blk;
+ int action = 0;
+ int error;
trace_xfs_da_join(state->args);
- action = 0;
drop_blk = &state->path.blk[ state->path.active-1 ];
save_blk = &state->altpath.blk[ state->path.active-1 ];
ASSERT(state->path.blk[0].magic == XFS_DA_NODE_MAGIC);
*/
switch (drop_blk->magic) {
case XFS_ATTR_LEAF_MAGIC:
- error = xfs_attr_leaf_toosmall(state, &action);
+ error = xfs_attr3_leaf_toosmall(state, &action);
if (error)
- return(error);
+ return error;
if (action == 0)
- return(0);
- xfs_attr_leaf_unbalance(state, drop_blk, save_blk);
+ return 0;
+ xfs_attr3_leaf_unbalance(state, drop_blk, save_blk);
break;
case XFS_DIR2_LEAFN_MAGIC:
error = xfs_dir2_leafn_toosmall(state, &action);
* Remove the offending node, fixup hashvals,
* check for a toosmall neighbor.
*/
- xfs_da_node_remove(state, drop_blk);
- xfs_da_fixhashpath(state, &state->path);
- error = xfs_da_node_toosmall(state, &action);
+ xfs_da3_node_remove(state, drop_blk);
+ xfs_da3_fixhashpath(state, &state->path);
+ error = xfs_da3_node_toosmall(state, &action);
if (error)
- return(error);
+ return error;
if (action == 0)
return 0;
- xfs_da_node_unbalance(state, drop_blk, save_blk);
+ xfs_da3_node_unbalance(state, drop_blk, save_blk);
break;
}
- xfs_da_fixhashpath(state, &state->altpath);
- error = xfs_da_blk_unlink(state, drop_blk, save_blk);
+ xfs_da3_fixhashpath(state, &state->altpath);
+ error = xfs_da3_blk_unlink(state, drop_blk, save_blk);
xfs_da_state_kill_altpath(state);
if (error)
- return(error);
+ return error;
error = xfs_da_shrink_inode(state->args, drop_blk->blkno,
drop_blk->bp);
drop_blk->bp = NULL;
if (error)
- return(error);
+ return error;
}
/*
* We joined all the way to the top. If it turns out that
* we only have one entry in the root, make the child block
* the new root.
*/
- xfs_da_node_remove(state, drop_blk);
- xfs_da_fixhashpath(state, &state->path);
- error = xfs_da_root_join(state, &state->path.blk[0]);
- return(error);
+ xfs_da3_node_remove(state, drop_blk);
+ xfs_da3_fixhashpath(state, &state->path);
+ error = xfs_da3_root_join(state, &state->path.blk[0]);
+ return error;
}
#ifdef DEBUG
if (level == 1) {
ASSERT(magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
- magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
- } else
- ASSERT(magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
+ magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC) ||
+ magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC) ||
+ magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC));
+ } else {
+ ASSERT(magic == cpu_to_be16(XFS_DA_NODE_MAGIC) ||
+ magic == cpu_to_be16(XFS_DA3_NODE_MAGIC));
+ }
ASSERT(!blkinfo->forw);
ASSERT(!blkinfo->back);
}
* the old root to block 0 as the new root node.
*/
STATIC int
-xfs_da_root_join(xfs_da_state_t *state, xfs_da_state_blk_t *root_blk)
+xfs_da3_root_join(
+ struct xfs_da_state *state,
+ struct xfs_da_state_blk *root_blk)
{
- xfs_da_intnode_t *oldroot;
- xfs_da_args_t *args;
- xfs_dablk_t child;
- struct xfs_buf *bp;
- int error;
+ struct xfs_da_intnode *oldroot;
+ struct xfs_da_args *args;
+ xfs_dablk_t child;
+ struct xfs_buf *bp;
+ 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);
- args = state->args;
- ASSERT(args != NULL);
ASSERT(root_blk->magic == XFS_DA_NODE_MAGIC);
+
+ args = state->args;
oldroot = root_blk->bp->b_addr;
- ASSERT(oldroot->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
- ASSERT(!oldroot->hdr.info.forw);
- ASSERT(!oldroot->hdr.info.back);
+ dp->d_ops->node_hdr_from_disk(&oldroothdr, oldroot);
+ ASSERT(oldroothdr.forw == 0);
+ ASSERT(oldroothdr.back == 0);
/*
* If the root has more than one child, then don't do anything.
*/
- if (be16_to_cpu(oldroot->hdr.count) > 1)
- return(0);
+ if (oldroothdr.count > 1)
+ return 0;
/*
* Read in the (only) child block, then copy those bytes into
* the root block's buffer and free the original child block.
*/
- child = be32_to_cpu(oldroot->btree[0].before);
+ btree = dp->d_ops->node_tree_p(oldroot);
+ child = be32_to_cpu(btree[0].before);
ASSERT(child != 0);
- error = xfs_da_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);
- ASSERT(bp != NULL);
- xfs_da_blkinfo_onlychild_validate(bp->b_addr,
- be16_to_cpu(oldroot->hdr.level));
+ return error;
+ xfs_da_blkinfo_onlychild_validate(bp->b_addr, oldroothdr.level);
/*
* This could be copying a leaf back into the root block in the case of
* there only being a single leaf block left in the tree. Hence we have
* to update the b_ops pointer as well to match the buffer type change
- * that could occur.
+ * that could occur. For dir3 blocks we also need to update the block
+ * number in the buffer header.
*/
- memcpy(root_blk->bp->b_addr, bp->b_addr, state->blocksize);
+ memcpy(root_blk->bp->b_addr, bp->b_addr, args->geo->blksize);
root_blk->bp->b_ops = bp->b_ops;
- xfs_trans_log_buf(args->trans, root_blk->bp, 0, state->blocksize - 1);
+ xfs_trans_buf_copy_type(root_blk->bp, bp);
+ if (oldroothdr.magic == XFS_DA3_NODE_MAGIC) {
+ struct xfs_da3_blkinfo *da3 = root_blk->bp->b_addr;
+ da3->blkno = cpu_to_be64(root_blk->bp->b_bn);
+ }
+ xfs_trans_log_buf(args->trans, root_blk->bp, 0,
+ args->geo->blksize - 1);
error = xfs_da_shrink_inode(args, child, bp);
- return(error);
+ return error;
}
/*
* If nothing can be done, return 0.
*/
STATIC int
-xfs_da_node_toosmall(xfs_da_state_t *state, int *action)
+xfs_da3_node_toosmall(
+ struct xfs_da_state *state,
+ int *action)
{
- xfs_da_intnode_t *node;
- xfs_da_state_blk_t *blk;
- xfs_da_blkinfo_t *info;
- int count, forward, error, retval, i;
- xfs_dablk_t blkno;
- struct xfs_buf *bp;
+ struct xfs_da_intnode *node;
+ struct xfs_da_state_blk *blk;
+ struct xfs_da_blkinfo *info;
+ xfs_dablk_t blkno;
+ struct xfs_buf *bp;
+ struct xfs_da3_icnode_hdr nodehdr;
+ int count;
+ int forward;
+ int error;
+ int retval;
+ int i;
+ struct xfs_inode *dp = state->args->dp;
trace_xfs_da_node_toosmall(state->args);
*/
blk = &state->path.blk[ state->path.active-1 ];
info = blk->bp->b_addr;
- ASSERT(info->magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
node = (xfs_da_intnode_t *)info;
- count = be16_to_cpu(node->hdr.count);
- if (count > (state->node_ents >> 1)) {
+ dp->d_ops->node_hdr_from_disk(&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 */
+ return 0; /* blk over 50%, don't try to join */
}
/*
* coalesce it with a sibling block. We choose (arbitrarily)
* to merge with the forward block unless it is NULL.
*/
- if (count == 0) {
+ if (nodehdr.count == 0) {
/*
* Make altpath point to the block we want to keep and
* path point to the block we want to drop (this one).
*/
forward = (info->forw != 0);
memcpy(&state->altpath, &state->path, sizeof(state->path));
- error = xfs_da_path_shift(state, &state->altpath, forward,
+ error = xfs_da3_path_shift(state, &state->altpath, forward,
0, &retval);
if (error)
- return(error);
+ return error;
if (retval) {
*action = 0;
} else {
*action = 2;
}
- return(0);
+ return 0;
}
/*
* We prefer coalescing with the lower numbered sibling so as
* to shrink a directory over time.
*/
+ count = state->args->geo->node_ents;
+ count -= state->args->geo->node_ents >> 2;
+ count -= nodehdr.count;
+
/* start with smaller blk num */
- forward = (be32_to_cpu(info->forw) < be32_to_cpu(info->back));
+ forward = nodehdr.forw < nodehdr.back;
for (i = 0; i < 2; forward = !forward, i++) {
+ struct xfs_da3_icnode_hdr thdr;
if (forward)
- blkno = be32_to_cpu(info->forw);
+ blkno = nodehdr.forw;
else
- blkno = be32_to_cpu(info->back);
+ blkno = nodehdr.back;
if (blkno == 0)
continue;
- error = xfs_da_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);
- ASSERT(bp != NULL);
+ return error;
- node = (xfs_da_intnode_t *)info;
- count = state->node_ents;
- count -= state->node_ents >> 2;
- count -= be16_to_cpu(node->hdr.count);
node = bp->b_addr;
- ASSERT(node->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
- count -= be16_to_cpu(node->hdr.count);
+ dp->d_ops->node_hdr_from_disk(&thdr, node);
xfs_trans_brelse(state->args->trans, bp);
- if (count >= 0)
+
+ if (count - thdr.count >= 0)
break; /* fits with at least 25% to spare */
}
if (i >= 2) {
*action = 0;
- return(0);
+ return 0;
}
/*
*/
memcpy(&state->altpath, &state->path, sizeof(state->path));
if (blkno < blk->blkno) {
- error = xfs_da_path_shift(state, &state->altpath, forward,
+ error = xfs_da3_path_shift(state, &state->altpath, forward,
0, &retval);
- if (error) {
- return(error);
- }
- if (retval) {
- *action = 0;
- return(0);
- }
} else {
- error = xfs_da_path_shift(state, &state->path, forward,
+ error = xfs_da3_path_shift(state, &state->path, forward,
0, &retval);
- if (error) {
- return(error);
- }
- if (retval) {
- *action = 0;
- return(0);
- }
+ }
+ if (error)
+ return error;
+ if (retval) {
+ *action = 0;
+ return 0;
}
*action = 1;
- return(0);
+ return 0;
+}
+
+/*
+ * Pick up the last hashvalue from an intermediate node.
+ */
+STATIC uint
+xfs_da3_node_lasthash(
+ struct xfs_inode *dp,
+ struct xfs_buf *bp,
+ int *count)
+{
+ struct xfs_da_intnode *node;
+ struct xfs_da_node_entry *btree;
+ struct xfs_da3_icnode_hdr nodehdr;
+
+ node = bp->b_addr;
+ dp->d_ops->node_hdr_from_disk(&nodehdr, node);
+ if (count)
+ *count = nodehdr.count;
+ if (!nodehdr.count)
+ return 0;
+ btree = dp->d_ops->node_tree_p(node);
+ return be32_to_cpu(btree[nodehdr.count - 1].hashval);
}
/*
* when we stop making changes, return.
*/
void
-xfs_da_fixhashpath(xfs_da_state_t *state, xfs_da_state_path_t *path)
+xfs_da3_fixhashpath(
+ struct xfs_da_state *state,
+ struct xfs_da_state_path *path)
{
- xfs_da_state_blk_t *blk;
- xfs_da_intnode_t *node;
- xfs_da_node_entry_t *btree;
- xfs_dahash_t lasthash=0;
- int level, count;
+ struct xfs_da_state_blk *blk;
+ struct xfs_da_intnode *node;
+ struct xfs_da_node_entry *btree;
+ xfs_dahash_t lasthash=0;
+ int level;
+ int count;
+ struct xfs_inode *dp = state->args->dp;
trace_xfs_da_fixhashpath(state->args);
return;
break;
case XFS_DIR2_LEAFN_MAGIC:
- lasthash = xfs_dir2_leafn_lasthash(blk->bp, &count);
+ lasthash = xfs_dir2_leaf_lasthash(dp, blk->bp, &count);
if (count == 0)
return;
break;
case XFS_DA_NODE_MAGIC:
- lasthash = xfs_da_node_lasthash(blk->bp, &count);
+ lasthash = xfs_da3_node_lasthash(dp, blk->bp, &count);
if (count == 0)
return;
break;
}
for (blk--, level--; level >= 0; blk--, level--) {
+ struct xfs_da3_icnode_hdr nodehdr;
+
node = blk->bp->b_addr;
- ASSERT(node->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
- btree = &node->btree[ blk->index ];
- if (be32_to_cpu(btree->hashval) == lasthash)
+ dp->d_ops->node_hdr_from_disk(&nodehdr, node);
+ btree = dp->d_ops->node_tree_p(node);
+ if (be32_to_cpu(btree[blk->index].hashval) == lasthash)
break;
blk->hashval = lasthash;
- btree->hashval = cpu_to_be32(lasthash);
+ btree[blk->index].hashval = cpu_to_be32(lasthash);
xfs_trans_log_buf(state->args->trans, blk->bp,
- XFS_DA_LOGRANGE(node, btree, sizeof(*btree)));
+ XFS_DA_LOGRANGE(node, &btree[blk->index],
+ sizeof(*btree)));
- lasthash = be32_to_cpu(node->btree[be16_to_cpu(node->hdr.count)-1].hashval);
+ lasthash = be32_to_cpu(btree[nodehdr.count - 1].hashval);
}
}
* Remove an entry from an intermediate node.
*/
STATIC void
-xfs_da_node_remove(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk)
+xfs_da3_node_remove(
+ struct xfs_da_state *state,
+ struct xfs_da_state_blk *drop_blk)
{
- xfs_da_intnode_t *node;
- xfs_da_node_entry_t *btree;
- int tmp;
+ struct xfs_da_intnode *node;
+ struct xfs_da3_icnode_hdr nodehdr;
+ struct xfs_da_node_entry *btree;
+ int index;
+ int tmp;
+ struct xfs_inode *dp = state->args->dp;
trace_xfs_da_node_remove(state->args);
node = drop_blk->bp->b_addr;
- ASSERT(drop_blk->index < be16_to_cpu(node->hdr.count));
+ dp->d_ops->node_hdr_from_disk(&nodehdr, node);
+ ASSERT(drop_blk->index < nodehdr.count);
ASSERT(drop_blk->index >= 0);
/*
* Copy over the offending entry, or just zero it out.
*/
- btree = &node->btree[drop_blk->index];
- if (drop_blk->index < (be16_to_cpu(node->hdr.count)-1)) {
- tmp = be16_to_cpu(node->hdr.count) - drop_blk->index - 1;
+ index = drop_blk->index;
+ btree = dp->d_ops->node_tree_p(node);
+ if (index < nodehdr.count - 1) {
+ tmp = nodehdr.count - index - 1;
tmp *= (uint)sizeof(xfs_da_node_entry_t);
- memmove(btree, btree + 1, tmp);
+ memmove(&btree[index], &btree[index + 1], tmp);
xfs_trans_log_buf(state->args->trans, drop_blk->bp,
- XFS_DA_LOGRANGE(node, btree, tmp));
- btree = &node->btree[be16_to_cpu(node->hdr.count)-1];
+ XFS_DA_LOGRANGE(node, &btree[index], tmp));
+ index = nodehdr.count - 1;
}
- memset((char *)btree, 0, sizeof(xfs_da_node_entry_t));
+ memset(&btree[index], 0, sizeof(xfs_da_node_entry_t));
xfs_trans_log_buf(state->args->trans, drop_blk->bp,
- XFS_DA_LOGRANGE(node, btree, sizeof(*btree)));
- be16_add_cpu(&node->hdr.count, -1);
+ XFS_DA_LOGRANGE(node, &btree[index], sizeof(btree[index])));
+ nodehdr.count -= 1;
+ 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, sizeof(node->hdr)));
+ XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size));
/*
* Copy the last hash value from the block to propagate upwards.
*/
- btree--;
- drop_blk->hashval = be32_to_cpu(btree->hashval);
+ drop_blk->hashval = be32_to_cpu(btree[index - 1].hashval);
}
/*
- * Unbalance the btree elements between two intermediate nodes,
+ * Unbalance the elements between two intermediate nodes,
* move all Btree elements from one node into another.
*/
STATIC void
-xfs_da_node_unbalance(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
- xfs_da_state_blk_t *save_blk)
+xfs_da3_node_unbalance(
+ struct xfs_da_state *state,
+ struct xfs_da_state_blk *drop_blk,
+ struct xfs_da_state_blk *save_blk)
{
- xfs_da_intnode_t *drop_node, *save_node;
- xfs_da_node_entry_t *btree;
- int tmp;
- xfs_trans_t *tp;
+ struct xfs_da_intnode *drop_node;
+ struct xfs_da_intnode *save_node;
+ struct xfs_da_node_entry *drop_btree;
+ struct xfs_da_node_entry *save_btree;
+ struct xfs_da3_icnode_hdr drop_hdr;
+ struct xfs_da3_icnode_hdr save_hdr;
+ struct xfs_trans *tp;
+ int sindex;
+ int tmp;
+ struct xfs_inode *dp = state->args->dp;
trace_xfs_da_node_unbalance(state->args);
drop_node = drop_blk->bp->b_addr;
save_node = save_blk->bp->b_addr;
- ASSERT(drop_node->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
- ASSERT(save_node->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
+ 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;
/*
* If the dying block has lower hashvals, then move all the
* elements in the remaining block up to make a hole.
*/
- if ((be32_to_cpu(drop_node->btree[0].hashval) < be32_to_cpu(save_node->btree[ 0 ].hashval)) ||
- (be32_to_cpu(drop_node->btree[be16_to_cpu(drop_node->hdr.count)-1].hashval) <
- be32_to_cpu(save_node->btree[be16_to_cpu(save_node->hdr.count)-1].hashval)))
- {
- btree = &save_node->btree[be16_to_cpu(drop_node->hdr.count)];
- tmp = be16_to_cpu(save_node->hdr.count) * (uint)sizeof(xfs_da_node_entry_t);
- memmove(btree, &save_node->btree[0], tmp);
- btree = &save_node->btree[0];
+ if ((be32_to_cpu(drop_btree[0].hashval) <
+ be32_to_cpu(save_btree[0].hashval)) ||
+ (be32_to_cpu(drop_btree[drop_hdr.count - 1].hashval) <
+ be32_to_cpu(save_btree[save_hdr.count - 1].hashval))) {
+ /* XXX: check this - is memmove dst correct? */
+ tmp = save_hdr.count * sizeof(xfs_da_node_entry_t);
+ memmove(&save_btree[drop_hdr.count], &save_btree[0], tmp);
+
+ sindex = 0;
xfs_trans_log_buf(tp, save_blk->bp,
- XFS_DA_LOGRANGE(save_node, btree,
- (be16_to_cpu(save_node->hdr.count) + be16_to_cpu(drop_node->hdr.count)) *
- sizeof(xfs_da_node_entry_t)));
+ XFS_DA_LOGRANGE(save_node, &save_btree[0],
+ (save_hdr.count + drop_hdr.count) *
+ sizeof(xfs_da_node_entry_t)));
} else {
- btree = &save_node->btree[be16_to_cpu(save_node->hdr.count)];
+ sindex = save_hdr.count;
xfs_trans_log_buf(tp, save_blk->bp,
- XFS_DA_LOGRANGE(save_node, btree,
- be16_to_cpu(drop_node->hdr.count) *
- sizeof(xfs_da_node_entry_t)));
+ XFS_DA_LOGRANGE(save_node, &save_btree[sindex],
+ drop_hdr.count * sizeof(xfs_da_node_entry_t)));
}
/*
* Move all the B-tree elements from drop_blk to save_blk.
*/
- tmp = be16_to_cpu(drop_node->hdr.count) * (uint)sizeof(xfs_da_node_entry_t);
- memcpy(btree, &drop_node->btree[0], tmp);
- be16_add_cpu(&save_node->hdr.count, be16_to_cpu(drop_node->hdr.count));
+ tmp = drop_hdr.count * (uint)sizeof(xfs_da_node_entry_t);
+ memcpy(&save_btree[sindex], &drop_btree[0], tmp);
+ save_hdr.count += drop_hdr.count;
+ 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,
- sizeof(save_node->hdr)));
+ dp->d_ops->node_hdr_size));
/*
* Save the last hashval in the remaining block for upward propagation.
*/
- save_blk->hashval = be32_to_cpu(save_node->btree[be16_to_cpu(save_node->hdr.count)-1].hashval);
+ save_blk->hashval = be32_to_cpu(save_btree[save_hdr.count - 1].hashval);
}
/*========================================================================
* pruned depth-first tree search.
*/
int /* error */
-xfs_da_node_lookup_int(xfs_da_state_t *state, int *result)
+xfs_da3_node_lookup_int(
+ struct xfs_da_state *state,
+ int *result)
{
- xfs_da_state_blk_t *blk;
- xfs_da_blkinfo_t *curr;
- xfs_da_intnode_t *node;
- xfs_da_node_entry_t *btree;
- xfs_dablk_t blkno;
- int probe, span, max, error, retval;
- xfs_dahash_t hashval, btreehashval;
- xfs_da_args_t *args;
+ struct xfs_da_state_blk *blk;
+ struct xfs_da_blkinfo *curr;
+ struct xfs_da_intnode *node;
+ struct xfs_da_node_entry *btree;
+ struct xfs_da3_icnode_hdr nodehdr;
+ struct xfs_da_args *args;
+ xfs_dablk_t blkno;
+ xfs_dahash_t hashval;
+ xfs_dahash_t btreehashval;
+ int probe;
+ int span;
+ int max;
+ int error;
+ int retval;
+ unsigned int expected_level = 0;
+ struct xfs_inode *dp = state->args->dp;
args = state->args;
* Descend thru the B-tree searching each level for the right
* node to use, until the right hashval is found.
*/
- blkno = (args->whichfork == XFS_DATA_FORK)? state->mp->m_dirleafblk : 0;
+ blkno = args->geo->leafblk;
for (blk = &state->path.blk[0], state->path.active = 1;
state->path.active <= XFS_DA_NODE_MAXDEPTH;
blk++, state->path.active++) {
* Read the next node down in the tree.
*/
blk->blkno = blkno;
- error = xfs_da_node_read(args->trans, args->dp, blkno,
+ error = xfs_da3_node_read(args->trans, args->dp, blkno,
-1, &blk->bp, args->whichfork);
if (error) {
blk->blkno = 0;
state->path.active--;
- return(error);
+ return error;
}
curr = blk->bp->b_addr;
blk->magic = be16_to_cpu(curr->magic);
- ASSERT(blk->magic == XFS_DA_NODE_MAGIC ||
- blk->magic == XFS_DIR2_LEAFN_MAGIC ||
- blk->magic == XFS_ATTR_LEAF_MAGIC);
+
+ if (blk->magic == XFS_ATTR_LEAF_MAGIC ||
+ blk->magic == XFS_ATTR3_LEAF_MAGIC) {
+ blk->magic = XFS_ATTR_LEAF_MAGIC;
+ blk->hashval = xfs_attr_leaf_lasthash(blk->bp, NULL);
+ break;
+ }
+
+ if (blk->magic == XFS_DIR2_LEAFN_MAGIC ||
+ blk->magic == XFS_DIR3_LEAFN_MAGIC) {
+ blk->magic = XFS_DIR2_LEAFN_MAGIC;
+ blk->hashval = xfs_dir2_leaf_lasthash(args->dp,
+ blk->bp, NULL);
+ break;
+ }
+
+ blk->magic = XFS_DA_NODE_MAGIC;
+
/*
* Search an intermediate node for a match.
*/
- if (blk->magic == XFS_DA_NODE_MAGIC) {
- node = blk->bp->b_addr;
- max = be16_to_cpu(node->hdr.count);
- blk->hashval = be32_to_cpu(node->btree[max-1].hashval);
+ node = blk->bp->b_addr;
+ dp->d_ops->node_hdr_from_disk(&nodehdr, node);
+ btree = dp->d_ops->node_tree_p(node);
+
+ /* Tree taller than we can handle; bail out! */
+ if (nodehdr.level >= XFS_DA_NODE_MAXDEPTH)
+ return -EFSCORRUPTED;
+
+ /* Check the level from the root. */
+ if (blkno == args->geo->leafblk)
+ expected_level = nodehdr.level - 1;
+ else if (expected_level != nodehdr.level)
+ return -EFSCORRUPTED;
+ else
+ expected_level--;
- /*
- * Binary search. (note: small blocks will skip loop)
- */
- probe = span = max / 2;
- hashval = args->hashval;
- for (btree = &node->btree[probe]; span > 4;
- btree = &node->btree[probe]) {
- span /= 2;
- btreehashval = be32_to_cpu(btree->hashval);
- if (btreehashval < hashval)
- probe += span;
- else if (btreehashval > hashval)
- probe -= span;
- else
- break;
- }
- ASSERT((probe >= 0) && (probe < max));
- ASSERT((span <= 4) || (be32_to_cpu(btree->hashval) == hashval));
+ max = nodehdr.count;
+ blk->hashval = be32_to_cpu(btree[max - 1].hashval);
- /*
- * Since we may have duplicate hashval's, find the first
- * matching hashval in the node.
- */
- while ((probe > 0) && (be32_to_cpu(btree->hashval) >= hashval)) {
- btree--;
- probe--;
- }
- while ((probe < max) && (be32_to_cpu(btree->hashval) < hashval)) {
- btree++;
- probe++;
- }
+ /*
+ * Binary search. (note: small blocks will skip loop)
+ */
+ probe = span = max / 2;
+ hashval = args->hashval;
+ while (span > 4) {
+ span /= 2;
+ btreehashval = be32_to_cpu(btree[probe].hashval);
+ if (btreehashval < hashval)
+ probe += span;
+ else if (btreehashval > hashval)
+ probe -= span;
+ else
+ break;
+ }
+ ASSERT((probe >= 0) && (probe < max));
+ ASSERT((span <= 4) ||
+ (be32_to_cpu(btree[probe].hashval) == hashval));
- /*
- * Pick the right block to descend on.
- */
- if (probe == max) {
- blk->index = max-1;
- blkno = be32_to_cpu(node->btree[max-1].before);
- } else {
- blk->index = probe;
- blkno = be32_to_cpu(btree->before);
- }
- } else if (blk->magic == XFS_ATTR_LEAF_MAGIC) {
- blk->hashval = xfs_attr_leaf_lasthash(blk->bp, NULL);
- break;
- } else if (blk->magic == XFS_DIR2_LEAFN_MAGIC) {
- blk->hashval = xfs_dir2_leafn_lasthash(blk->bp, NULL);
- break;
+ /*
+ * Since we may have duplicate hashval's, find the first
+ * matching hashval in the node.
+ */
+ while (probe > 0 &&
+ be32_to_cpu(btree[probe].hashval) >= hashval) {
+ probe--;
+ }
+ while (probe < max &&
+ be32_to_cpu(btree[probe].hashval) < hashval) {
+ probe++;
+ }
+
+ /*
+ * Pick the right block to descend on.
+ */
+ if (probe == max) {
+ blk->index = max - 1;
+ blkno = be32_to_cpu(btree[max - 1].before);
+ } else {
+ blk->index = probe;
+ blkno = be32_to_cpu(btree[probe].before);
}
+
+ /* We can't point back to the root. */
+ if (blkno == args->geo->leafblk)
+ return -EFSCORRUPTED;
}
+ if (expected_level != 0)
+ return -EFSCORRUPTED;
+
/*
* A leaf block that ends in the hashval that we are interested in
* (final hashval == search hashval) means that the next block may
retval = xfs_dir2_leafn_lookup_int(blk->bp, args,
&blk->index, state);
} else if (blk->magic == XFS_ATTR_LEAF_MAGIC) {
- retval = xfs_attr_leaf_lookup_int(blk->bp, args);
+ retval = xfs_attr3_leaf_lookup_int(blk->bp, args);
blk->index = args->index;
args->blkno = blk->blkno;
} else {
ASSERT(0);
- return XFS_ERROR(EFSCORRUPTED);
+ return -EFSCORRUPTED;
}
- if (((retval == ENOENT) || (retval == ENOATTR)) &&
+ if (((retval == -ENOENT) || (retval == -ENOATTR)) &&
(blk->hashval == args->hashval)) {
- error = xfs_da_path_shift(state, &state->path, 1, 1,
+ error = xfs_da3_path_shift(state, &state->path, 1, 1,
&retval);
if (error)
- return(error);
+ return error;
if (retval == 0) {
continue;
} else if (blk->magic == XFS_ATTR_LEAF_MAGIC) {
/* path_shift() gives ENOENT */
- retval = XFS_ERROR(ENOATTR);
+ retval = -ENOATTR;
}
}
break;
}
*result = retval;
- return(0);
+ return 0;
}
/*========================================================================
* Utility routines.
*========================================================================*/
+/*
+ * Compare two intermediate nodes for "order".
+ */
+STATIC int
+xfs_da3_node_order(
+ struct xfs_inode *dp,
+ struct xfs_buf *node1_bp,
+ struct xfs_buf *node2_bp)
+{
+ struct xfs_da_intnode *node1;
+ struct xfs_da_intnode *node2;
+ struct xfs_da_node_entry *btree1;
+ struct xfs_da_node_entry *btree2;
+ struct xfs_da3_icnode_hdr node1hdr;
+ struct xfs_da3_icnode_hdr node2hdr;
+
+ 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);
+ btree1 = dp->d_ops->node_tree_p(node1);
+ btree2 = dp->d_ops->node_tree_p(node2);
+
+ if (node1hdr.count > 0 && node2hdr.count > 0 &&
+ ((be32_to_cpu(btree2[0].hashval) < be32_to_cpu(btree1[0].hashval)) ||
+ (be32_to_cpu(btree2[node2hdr.count - 1].hashval) <
+ be32_to_cpu(btree1[node1hdr.count - 1].hashval)))) {
+ return 1;
+ }
+ return 0;
+}
+
/*
* Link a new block into a doubly linked list of blocks (of whatever type).
*/
int /* error */
-xfs_da_blk_link(xfs_da_state_t *state, xfs_da_state_blk_t *old_blk,
- xfs_da_state_blk_t *new_blk)
+xfs_da3_blk_link(
+ struct xfs_da_state *state,
+ struct xfs_da_state_blk *old_blk,
+ struct xfs_da_state_blk *new_blk)
{
- xfs_da_blkinfo_t *old_info, *new_info, *tmp_info;
- xfs_da_args_t *args;
- int before=0, error;
- struct xfs_buf *bp;
+ struct xfs_da_blkinfo *old_info;
+ struct xfs_da_blkinfo *new_info;
+ struct xfs_da_blkinfo *tmp_info;
+ struct xfs_da_args *args;
+ struct xfs_buf *bp;
+ int before = 0;
+ int error;
+ struct xfs_inode *dp = state->args->dp;
/*
* Set up environment.
ASSERT(old_blk->magic == XFS_DA_NODE_MAGIC ||
old_blk->magic == XFS_DIR2_LEAFN_MAGIC ||
old_blk->magic == XFS_ATTR_LEAF_MAGIC);
- ASSERT(old_blk->magic == be16_to_cpu(old_info->magic));
- ASSERT(new_blk->magic == be16_to_cpu(new_info->magic));
- ASSERT(old_blk->magic == new_blk->magic);
switch (old_blk->magic) {
case XFS_ATTR_LEAF_MAGIC:
before = xfs_attr_leaf_order(old_blk->bp, new_blk->bp);
break;
case XFS_DIR2_LEAFN_MAGIC:
- before = xfs_dir2_leafn_order(old_blk->bp, new_blk->bp);
+ before = xfs_dir2_leafn_order(dp, old_blk->bp, new_blk->bp);
break;
case XFS_DA_NODE_MAGIC:
- before = xfs_da_node_order(old_blk->bp, new_blk->bp);
+ before = xfs_da3_node_order(dp, old_blk->bp, new_blk->bp);
break;
}
new_info->forw = cpu_to_be32(old_blk->blkno);
new_info->back = old_info->back;
if (old_info->back) {
- error = xfs_da_node_read(args->trans, args->dp,
+ error = xfs_da3_node_read(args->trans, dp,
be32_to_cpu(old_info->back),
-1, &bp, args->whichfork);
if (error)
- return(error);
+ return error;
ASSERT(bp != NULL);
tmp_info = bp->b_addr;
- ASSERT(be16_to_cpu(tmp_info->magic) == be16_to_cpu(old_info->magic));
+ ASSERT(tmp_info->magic == old_info->magic);
ASSERT(be32_to_cpu(tmp_info->forw) == old_blk->blkno);
tmp_info->forw = cpu_to_be32(new_blk->blkno);
xfs_trans_log_buf(args->trans, bp, 0, sizeof(*tmp_info)-1);
new_info->forw = old_info->forw;
new_info->back = cpu_to_be32(old_blk->blkno);
if (old_info->forw) {
- error = xfs_da_node_read(args->trans, args->dp,
+ error = xfs_da3_node_read(args->trans, dp,
be32_to_cpu(old_info->forw),
-1, &bp, args->whichfork);
if (error)
- return(error);
+ return error;
ASSERT(bp != NULL);
tmp_info = bp->b_addr;
ASSERT(tmp_info->magic == old_info->magic);
xfs_trans_log_buf(args->trans, old_blk->bp, 0, sizeof(*tmp_info) - 1);
xfs_trans_log_buf(args->trans, new_blk->bp, 0, sizeof(*tmp_info) - 1);
- return(0);
-}
-
-/*
- * Compare two intermediate nodes for "order".
- */
-STATIC int
-xfs_da_node_order(
- struct xfs_buf *node1_bp,
- struct xfs_buf *node2_bp)
-{
- xfs_da_intnode_t *node1, *node2;
-
- node1 = node1_bp->b_addr;
- node2 = node2_bp->b_addr;
- ASSERT(node1->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC) &&
- node2->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
- if ((be16_to_cpu(node1->hdr.count) > 0) && (be16_to_cpu(node2->hdr.count) > 0) &&
- ((be32_to_cpu(node2->btree[0].hashval) <
- be32_to_cpu(node1->btree[0].hashval)) ||
- (be32_to_cpu(node2->btree[be16_to_cpu(node2->hdr.count)-1].hashval) <
- be32_to_cpu(node1->btree[be16_to_cpu(node1->hdr.count)-1].hashval)))) {
- return(1);
- }
- return(0);
-}
-
-/*
- * Pick up the last hashvalue from an intermediate node.
- */
-STATIC uint
-xfs_da_node_lasthash(
- struct xfs_buf *bp,
- int *count)
-{
- xfs_da_intnode_t *node;
-
- node = bp->b_addr;
- ASSERT(node->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
- if (count)
- *count = be16_to_cpu(node->hdr.count);
- if (!node->hdr.count)
- return(0);
- return be32_to_cpu(node->btree[be16_to_cpu(node->hdr.count)-1].hashval);
+ return 0;
}
/*
* Unlink a block from a doubly linked list of blocks.
*/
STATIC int /* error */
-xfs_da_blk_unlink(xfs_da_state_t *state, xfs_da_state_blk_t *drop_blk,
- xfs_da_state_blk_t *save_blk)
+xfs_da3_blk_unlink(
+ struct xfs_da_state *state,
+ struct xfs_da_state_blk *drop_blk,
+ struct xfs_da_state_blk *save_blk)
{
- xfs_da_blkinfo_t *drop_info, *save_info, *tmp_info;
- xfs_da_args_t *args;
- struct xfs_buf *bp;
- int error;
+ struct xfs_da_blkinfo *drop_info;
+ struct xfs_da_blkinfo *save_info;
+ struct xfs_da_blkinfo *tmp_info;
+ struct xfs_da_args *args;
+ struct xfs_buf *bp;
+ int error;
/*
* Set up environment.
ASSERT(save_blk->magic == XFS_DA_NODE_MAGIC ||
save_blk->magic == XFS_DIR2_LEAFN_MAGIC ||
save_blk->magic == XFS_ATTR_LEAF_MAGIC);
- ASSERT(save_blk->magic == be16_to_cpu(save_info->magic));
- ASSERT(drop_blk->magic == be16_to_cpu(drop_info->magic));
ASSERT(save_blk->magic == drop_blk->magic);
ASSERT((be32_to_cpu(save_info->forw) == drop_blk->blkno) ||
(be32_to_cpu(save_info->back) == drop_blk->blkno));
trace_xfs_da_unlink_back(args);
save_info->back = drop_info->back;
if (drop_info->back) {
- error = xfs_da_node_read(args->trans, args->dp,
+ error = xfs_da3_node_read(args->trans, args->dp,
be32_to_cpu(drop_info->back),
-1, &bp, args->whichfork);
if (error)
- return(error);
+ return error;
ASSERT(bp != NULL);
tmp_info = bp->b_addr;
ASSERT(tmp_info->magic == save_info->magic);
trace_xfs_da_unlink_forward(args);
save_info->forw = drop_info->forw;
if (drop_info->forw) {
- error = xfs_da_node_read(args->trans, args->dp,
+ error = xfs_da3_node_read(args->trans, args->dp,
be32_to_cpu(drop_info->forw),
-1, &bp, args->whichfork);
if (error)
- return(error);
+ return error;
ASSERT(bp != NULL);
tmp_info = bp->b_addr;
ASSERT(tmp_info->magic == save_info->magic);
}
xfs_trans_log_buf(args->trans, save_blk->bp, 0, sizeof(*save_info) - 1);
- return(0);
+ return 0;
}
/*
* the new bottom and the root.
*/
int /* error */
-xfs_da_path_shift(xfs_da_state_t *state, xfs_da_state_path_t *path,
- int forward, int release, int *result)
+xfs_da3_path_shift(
+ struct xfs_da_state *state,
+ struct xfs_da_state_path *path,
+ int forward,
+ int release,
+ int *result)
{
- xfs_da_state_blk_t *blk;
- xfs_da_blkinfo_t *info;
- xfs_da_intnode_t *node;
- xfs_da_args_t *args;
- xfs_dablk_t blkno=0;
- int level, error;
+ struct xfs_da_state_blk *blk;
+ struct xfs_da_blkinfo *info;
+ struct xfs_da_intnode *node;
+ struct xfs_da_args *args;
+ struct xfs_da_node_entry *btree;
+ struct xfs_da3_icnode_hdr nodehdr;
+ struct xfs_buf *bp;
+ xfs_dablk_t blkno = 0;
+ int level;
+ int error;
+ struct xfs_inode *dp = state->args->dp;
trace_xfs_da_path_shift(state->args);
ASSERT((path->active > 0) && (path->active < XFS_DA_NODE_MAXDEPTH));
level = (path->active-1) - 1; /* skip bottom layer in path */
for (blk = &path->blk[level]; level >= 0; blk--, level--) {
- ASSERT(blk->bp != NULL);
node = blk->bp->b_addr;
- ASSERT(node->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
- if (forward && (blk->index < be16_to_cpu(node->hdr.count)-1)) {
+ dp->d_ops->node_hdr_from_disk(&nodehdr, node);
+ btree = dp->d_ops->node_tree_p(node);
+
+ if (forward && (blk->index < nodehdr.count - 1)) {
blk->index++;
- blkno = be32_to_cpu(node->btree[blk->index].before);
+ blkno = be32_to_cpu(btree[blk->index].before);
break;
} else if (!forward && (blk->index > 0)) {
blk->index--;
- blkno = be32_to_cpu(node->btree[blk->index].before);
+ blkno = be32_to_cpu(btree[blk->index].before);
break;
}
}
if (level < 0) {
- *result = XFS_ERROR(ENOENT); /* we're out of our tree */
+ *result = -ENOENT; /* we're out of our tree */
ASSERT(args->op_flags & XFS_DA_OP_OKNOENT);
- return(0);
+ return 0;
}
/*
*/
for (blk++, level++; level < path->active; blk++, level++) {
/*
- * Release the old block.
- * (if it's dirty, trans won't actually let go)
+ * Read the next child block into a local buffer.
*/
- if (release)
- xfs_trans_brelse(args->trans, blk->bp);
+ error = xfs_da3_node_read(args->trans, dp, blkno, -1, &bp,
+ args->whichfork);
+ if (error)
+ return error;
/*
- * Read the next child block.
+ * Release the old block (if it's dirty, the trans doesn't
+ * actually let go) and swap the local buffer into the path
+ * structure. This ensures failure of the above read doesn't set
+ * a NULL buffer in an active slot in the path.
*/
+ if (release)
+ xfs_trans_brelse(args->trans, blk->bp);
blk->blkno = blkno;
- error = xfs_da_node_read(args->trans, args->dp, blkno, -1,
- &blk->bp, args->whichfork);
- if (error)
- return(error);
- ASSERT(blk->bp != NULL);
+ blk->bp = bp;
+
info = blk->bp->b_addr;
ASSERT(info->magic == cpu_to_be16(XFS_DA_NODE_MAGIC) ||
+ info->magic == cpu_to_be16(XFS_DA3_NODE_MAGIC) ||
info->magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
- info->magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC));
- blk->magic = be16_to_cpu(info->magic);
- if (blk->magic == XFS_DA_NODE_MAGIC) {
+ info->magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC) ||
+ info->magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC) ||
+ info->magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC));
+
+
+ /*
+ * Note: we flatten the magic number to a single type so we
+ * don't have to compare against crc/non-crc types elsewhere.
+ */
+ switch (be16_to_cpu(info->magic)) {
+ case XFS_DA_NODE_MAGIC:
+ case XFS_DA3_NODE_MAGIC:
+ blk->magic = XFS_DA_NODE_MAGIC;
node = (xfs_da_intnode_t *)info;
- blk->hashval = be32_to_cpu(node->btree[be16_to_cpu(node->hdr.count)-1].hashval);
+ 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)
blk->index = 0;
else
- blk->index = be16_to_cpu(node->hdr.count)-1;
- blkno = be32_to_cpu(node->btree[blk->index].before);
- } else {
+ blk->index = nodehdr.count - 1;
+ blkno = be32_to_cpu(btree[blk->index].before);
+ break;
+ case XFS_ATTR_LEAF_MAGIC:
+ case XFS_ATTR3_LEAF_MAGIC:
+ blk->magic = XFS_ATTR_LEAF_MAGIC;
ASSERT(level == path->active-1);
blk->index = 0;
- switch(blk->magic) {
- case XFS_ATTR_LEAF_MAGIC:
- blk->hashval = xfs_attr_leaf_lasthash(blk->bp,
- NULL);
- break;
- case XFS_DIR2_LEAFN_MAGIC:
- blk->hashval = xfs_dir2_leafn_lasthash(blk->bp,
- NULL);
- break;
- default:
- ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC ||
- blk->magic == XFS_DIR2_LEAFN_MAGIC);
- break;
- }
+ blk->hashval = xfs_attr_leaf_lasthash(blk->bp, NULL);
+ break;
+ case XFS_DIR2_LEAFN_MAGIC:
+ case XFS_DIR3_LEAFN_MAGIC:
+ blk->magic = XFS_DIR2_LEAFN_MAGIC;
+ ASSERT(level == path->active-1);
+ blk->index = 0;
+ blk->hashval = xfs_dir2_leaf_lasthash(args->dp,
+ blk->bp, NULL);
+ break;
+ default:
+ ASSERT(0);
+ break;
}
}
*result = 0;
- return(0);
+ return 0;
}
* This is implemented with some source-level loop unrolling.
*/
xfs_dahash_t
-xfs_da_hashname(const __uint8_t *name, int namelen)
+xfs_da_hashname(const uint8_t *name, int namelen)
{
xfs_dahash_t hash;
struct xfs_trans *tp = args->trans;
struct xfs_inode *dp = args->dp;
int w = args->whichfork;
- xfs_drfsbno_t nblks = dp->i_d.di_nblocks;
+ xfs_rfsblock_t nblks = dp->i_d.di_nblocks;
struct xfs_bmbt_irec map, *mapp;
int nmap, error, got, i, mapi;
error = xfs_bmapi_write(tp, dp, *bno, count,
xfs_bmapi_aflag(w)|XFS_BMAPI_METADATA|XFS_BMAPI_CONTIG,
args->firstblock, args->total, &map, &nmap,
- args->flist);
+ args->dfops);
if (error)
return error;
error = xfs_bmapi_write(tp, dp, b, c,
xfs_bmapi_aflag(w)|XFS_BMAPI_METADATA,
args->firstblock, args->total,
- &mapp[mapi], &nmap, args->flist);
+ &mapp[mapi], &nmap, args->dfops);
if (error)
goto out_free_map;
if (nmap < 1)
if (got != count || mapp[0].br_startoff != *bno ||
mapp[mapi - 1].br_startoff + mapp[mapi - 1].br_blockcount !=
*bno + count) {
- error = XFS_ERROR(ENOSPC);
+ error = -ENOSPC;
goto out_free_map;
}
xfs_dablk_t *new_blkno)
{
xfs_fileoff_t bno;
- int count;
int error;
trace_xfs_da_grow_inode(args);
- if (args->whichfork == XFS_DATA_FORK) {
- bno = args->dp->i_mount->m_dirleafblk;
- count = args->dp->i_mount->m_dirblkfsbs;
- } else {
- bno = 0;
- count = 1;
- }
-
- error = xfs_da_grow_inode_int(args, &bno, count);
+ bno = args->geo->leafblk;
+ error = xfs_da_grow_inode_int(args, &bno, args->geo->fsbcount);
if (!error)
*new_blkno = (xfs_dablk_t)bno;
return error;
* a bmap btree split to do that.
*/
STATIC int
-xfs_da_swap_lastblock(
- xfs_da_args_t *args,
- xfs_dablk_t *dead_blknop,
- struct xfs_buf **dead_bufp)
+xfs_da3_swap_lastblock(
+ struct xfs_da_args *args,
+ xfs_dablk_t *dead_blknop,
+ struct xfs_buf **dead_bufp)
{
- xfs_dablk_t dead_blkno, last_blkno, sib_blkno, par_blkno;
- struct xfs_buf *dead_buf, *last_buf, *sib_buf, *par_buf;
- xfs_fileoff_t lastoff;
- xfs_inode_t *ip;
- xfs_trans_t *tp;
- xfs_mount_t *mp;
- int error, w, entno, level, dead_level;
- xfs_da_blkinfo_t *dead_info, *sib_info;
- xfs_da_intnode_t *par_node, *dead_node;
- xfs_dir2_leaf_t *dead_leaf2;
- xfs_dahash_t dead_hash;
+ struct xfs_da_blkinfo *dead_info;
+ struct xfs_da_blkinfo *sib_info;
+ struct xfs_da_intnode *par_node;
+ struct xfs_da_intnode *dead_node;
+ struct xfs_dir2_leaf *dead_leaf2;
+ struct xfs_da_node_entry *btree;
+ struct xfs_da3_icnode_hdr par_hdr;
+ struct xfs_inode *dp;
+ struct xfs_trans *tp;
+ struct xfs_mount *mp;
+ struct xfs_buf *dead_buf;
+ struct xfs_buf *last_buf;
+ struct xfs_buf *sib_buf;
+ struct xfs_buf *par_buf;
+ xfs_dahash_t dead_hash;
+ xfs_fileoff_t lastoff;
+ xfs_dablk_t dead_blkno;
+ xfs_dablk_t last_blkno;
+ xfs_dablk_t sib_blkno;
+ xfs_dablk_t par_blkno;
+ int error;
+ int w;
+ int entno;
+ int level;
+ int dead_level;
trace_xfs_da_swap_lastblock(args);
dead_buf = *dead_bufp;
dead_blkno = *dead_blknop;
tp = args->trans;
- ip = args->dp;
+ dp = args->dp;
w = args->whichfork;
ASSERT(w == XFS_DATA_FORK);
- mp = ip->i_mount;
- lastoff = mp->m_dirfreeblk;
- error = xfs_bmap_last_before(tp, ip, &lastoff, w);
+ mp = dp->i_mount;
+ lastoff = args->geo->freeblk;
+ error = xfs_bmap_last_before(tp, dp, &lastoff, w);
if (error)
return error;
if (unlikely(lastoff == 0)) {
XFS_ERROR_REPORT("xfs_da_swap_lastblock(1)", XFS_ERRLEVEL_LOW,
mp);
- return XFS_ERROR(EFSCORRUPTED);
+ return -EFSCORRUPTED;
}
/*
* Read the last block in the btree space.
*/
- last_blkno = (xfs_dablk_t)lastoff - mp->m_dirblkfsbs;
- error = xfs_da_node_read(tp, ip, last_blkno, -1, &last_buf, w);
+ last_blkno = (xfs_dablk_t)lastoff - args->geo->fsbcount;
+ error = xfs_da3_node_read(tp, dp, last_blkno, -1, &last_buf, w);
if (error)
return error;
/*
* Copy the last block into the dead buffer and log it.
*/
- memcpy(dead_buf->b_addr, last_buf->b_addr, mp->m_dirblksize);
- xfs_trans_log_buf(tp, dead_buf, 0, mp->m_dirblksize - 1);
+ memcpy(dead_buf->b_addr, last_buf->b_addr, args->geo->blksize);
+ xfs_trans_log_buf(tp, dead_buf, 0, args->geo->blksize - 1);
dead_info = dead_buf->b_addr;
/*
* Get values from the moved block.
*/
- if (dead_info->magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC)) {
+ if (dead_info->magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
+ dead_info->magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC)) {
+ struct xfs_dir3_icleaf_hdr leafhdr;
+ struct xfs_dir2_leaf_entry *ents;
+
dead_leaf2 = (xfs_dir2_leaf_t *)dead_info;
+ 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(dead_leaf2->ents[be16_to_cpu(dead_leaf2->hdr.count) - 1].hashval);
+ dead_hash = be32_to_cpu(ents[leafhdr.count - 1].hashval);
} else {
- ASSERT(dead_info->magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
+ struct xfs_da3_icnode_hdr deadhdr;
+
dead_node = (xfs_da_intnode_t *)dead_info;
- dead_level = be16_to_cpu(dead_node->hdr.level);
- dead_hash = be32_to_cpu(dead_node->btree[be16_to_cpu(dead_node->hdr.count) - 1].hashval);
+ 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);
}
sib_buf = par_buf = NULL;
/*
* If the moved block has a left sibling, fix up the pointers.
*/
if ((sib_blkno = be32_to_cpu(dead_info->back))) {
- error = xfs_da_node_read(tp, ip, sib_blkno, -1, &sib_buf, w);
+ error = xfs_da3_node_read(tp, dp, sib_blkno, -1, &sib_buf, w);
if (error)
goto done;
sib_info = sib_buf->b_addr;
sib_info->magic != dead_info->magic)) {
XFS_ERROR_REPORT("xfs_da_swap_lastblock(2)",
XFS_ERRLEVEL_LOW, mp);
- error = XFS_ERROR(EFSCORRUPTED);
+ error = -EFSCORRUPTED;
goto done;
}
sib_info->forw = cpu_to_be32(dead_blkno);
* If the moved block has a right sibling, fix up the pointers.
*/
if ((sib_blkno = be32_to_cpu(dead_info->forw))) {
- error = xfs_da_node_read(tp, ip, sib_blkno, -1, &sib_buf, w);
+ error = xfs_da3_node_read(tp, dp, sib_blkno, -1, &sib_buf, w);
if (error)
goto done;
sib_info = sib_buf->b_addr;
sib_info->magic != dead_info->magic)) {
XFS_ERROR_REPORT("xfs_da_swap_lastblock(3)",
XFS_ERRLEVEL_LOW, mp);
- error = XFS_ERROR(EFSCORRUPTED);
+ error = -EFSCORRUPTED;
goto done;
}
sib_info->back = cpu_to_be32(dead_blkno);
sizeof(sib_info->back)));
sib_buf = NULL;
}
- par_blkno = mp->m_dirleafblk;
+ par_blkno = args->geo->leafblk;
level = -1;
/*
* Walk down the tree looking for the parent of the moved block.
*/
for (;;) {
- error = xfs_da_node_read(tp, ip, par_blkno, -1, &par_buf, w);
+ error = xfs_da3_node_read(tp, dp, par_blkno, -1, &par_buf, w);
if (error)
goto done;
par_node = par_buf->b_addr;
- if (unlikely(par_node->hdr.info.magic !=
- cpu_to_be16(XFS_DA_NODE_MAGIC) ||
- (level >= 0 && level != be16_to_cpu(par_node->hdr.level) + 1))) {
+ 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);
- error = XFS_ERROR(EFSCORRUPTED);
+ error = -EFSCORRUPTED;
goto done;
}
- level = be16_to_cpu(par_node->hdr.level);
+ level = par_hdr.level;
+ btree = dp->d_ops->node_tree_p(par_node);
for (entno = 0;
- entno < be16_to_cpu(par_node->hdr.count) &&
- be32_to_cpu(par_node->btree[entno].hashval) < dead_hash;
+ entno < par_hdr.count &&
+ be32_to_cpu(btree[entno].hashval) < dead_hash;
entno++)
continue;
- if (unlikely(entno == be16_to_cpu(par_node->hdr.count))) {
+ if (entno == par_hdr.count) {
XFS_ERROR_REPORT("xfs_da_swap_lastblock(5)",
XFS_ERRLEVEL_LOW, mp);
- error = XFS_ERROR(EFSCORRUPTED);
+ error = -EFSCORRUPTED;
goto done;
}
- par_blkno = be32_to_cpu(par_node->btree[entno].before);
+ par_blkno = be32_to_cpu(btree[entno].before);
if (level == dead_level + 1)
break;
xfs_trans_brelse(tp, par_buf);
*/
for (;;) {
for (;
- entno < be16_to_cpu(par_node->hdr.count) &&
- be32_to_cpu(par_node->btree[entno].before) != last_blkno;
+ entno < par_hdr.count &&
+ be32_to_cpu(btree[entno].before) != last_blkno;
entno++)
continue;
- if (entno < be16_to_cpu(par_node->hdr.count))
+ if (entno < par_hdr.count)
break;
- par_blkno = be32_to_cpu(par_node->hdr.info.forw);
+ par_blkno = par_hdr.forw;
xfs_trans_brelse(tp, par_buf);
par_buf = NULL;
if (unlikely(par_blkno == 0)) {
XFS_ERROR_REPORT("xfs_da_swap_lastblock(6)",
XFS_ERRLEVEL_LOW, mp);
- error = XFS_ERROR(EFSCORRUPTED);
+ error = -EFSCORRUPTED;
goto done;
}
- error = xfs_da_node_read(tp, ip, par_blkno, -1, &par_buf, w);
+ error = xfs_da3_node_read(tp, dp, par_blkno, -1, &par_buf, w);
if (error)
goto done;
par_node = par_buf->b_addr;
- if (unlikely(
- be16_to_cpu(par_node->hdr.level) != level ||
- par_node->hdr.info.magic != cpu_to_be16(XFS_DA_NODE_MAGIC))) {
+ 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);
- error = XFS_ERROR(EFSCORRUPTED);
+ error = -EFSCORRUPTED;
goto done;
}
+ btree = dp->d_ops->node_tree_p(par_node);
entno = 0;
}
/*
* Update the parent entry pointing to the moved block.
*/
- par_node->btree[entno].before = cpu_to_be32(dead_blkno);
+ btree[entno].before = cpu_to_be32(dead_blkno);
xfs_trans_log_buf(tp, par_buf,
- XFS_DA_LOGRANGE(par_node, &par_node->btree[entno].before,
- sizeof(par_node->btree[entno].before)));
+ XFS_DA_LOGRANGE(par_node, &btree[entno].before,
+ sizeof(btree[entno].before)));
*dead_blknop = last_blkno;
*dead_bufp = last_buf;
return 0;
xfs_inode_t *dp;
int done, error, w, count;
xfs_trans_t *tp;
- xfs_mount_t *mp;
trace_xfs_da_shrink_inode(args);
dp = args->dp;
w = args->whichfork;
tp = args->trans;
- mp = dp->i_mount;
- if (w == XFS_DATA_FORK)
- count = mp->m_dirblkfsbs;
- else
- count = 1;
+ count = args->geo->fsbcount;
for (;;) {
/*
* Remove extents. If we get ENOSPC for a dir we have to move
* the last block to the place we want to kill.
*/
- if ((error = xfs_bunmapi(tp, dp, dead_blkno, count,
- xfs_bmapi_aflag(w)|XFS_BMAPI_METADATA,
- 0, args->firstblock, args->flist,
- &done)) == ENOSPC) {
+ error = xfs_bunmapi(tp, dp, dead_blkno, count,
+ xfs_bmapi_aflag(w), 0, args->firstblock,
+ args->dfops, &done);
+ if (error == -ENOSPC) {
if (w != XFS_DATA_FORK)
break;
- if ((error = xfs_da_swap_lastblock(args, &dead_blkno,
- &dead_buf)))
+ error = xfs_da3_swap_lastblock(args, &dead_blkno,
+ &dead_buf);
+ if (error)
break;
} else {
break;
xfs_buf_map_from_irec(
struct xfs_mount *mp,
struct xfs_buf_map **mapp,
- unsigned int *nmaps,
+ int *nmaps,
struct xfs_bmbt_irec *irecs,
- unsigned int nirecs)
+ int nirecs)
{
struct xfs_buf_map *map;
int i;
ASSERT(nirecs >= 1);
if (nirecs > 1) {
- map = kmem_zalloc(nirecs * sizeof(struct xfs_buf_map), KM_SLEEP);
+ map = kmem_zalloc(nirecs * sizeof(struct xfs_buf_map),
+ KM_SLEEP | KM_NOFS);
if (!map)
- return ENOMEM;
+ return -ENOMEM;
*mapp = map;
}
*/
static int
xfs_dabuf_map(
- struct xfs_trans *trans,
struct xfs_inode *dp,
xfs_dablk_t bno,
xfs_daddr_t mappedbno,
ASSERT(map && *map);
ASSERT(*nmaps == 1);
- nfsb = (whichfork == XFS_DATA_FORK) ? mp->m_dirblkfsbs : 1;
+ if (whichfork == XFS_DATA_FORK)
+ nfsb = mp->m_dir_geo->fsbcount;
+ else
+ nfsb = mp->m_attr_geo->fsbcount;
/*
* Caller doesn't have a mapping. -2 means don't complain
* Optimize the one-block case.
*/
if (nfsb != 1)
- irecs = kmem_zalloc(sizeof(irec) * nfsb, KM_SLEEP);
+ irecs = kmem_zalloc(sizeof(irec) * nfsb,
+ KM_SLEEP | KM_NOFS);
nirecs = nfsb;
error = xfs_bmapi_read(dp, (xfs_fileoff_t)bno, nfsb, irecs,
}
if (!xfs_da_map_covers_blocks(nirecs, irecs, bno, nfsb)) {
- error = mappedbno == -2 ? -1 : XFS_ERROR(EFSCORRUPTED);
- if (unlikely(error == EFSCORRUPTED)) {
+ error = mappedbno == -2 ? -1 : -EFSCORRUPTED;
+ if (unlikely(error == -EFSCORRUPTED)) {
if (xfs_error_level >= XFS_ERRLEVEL_LOW) {
int i;
xfs_alert(mp, "%s: bno %lld dir: inode %lld",
*bpp = NULL;
mapp = ↦
nmap = 1;
- error = xfs_dabuf_map(trans, dp, bno, mappedbno, whichfork,
+ error = xfs_dabuf_map(dp, bno, mappedbno, whichfork,
&mapp, &nmap);
if (error) {
/* mapping a hole is not an error, but we don't continue */
bp = xfs_trans_get_buf_map(trans, dp->i_mount->m_ddev_targp,
mapp, nmap, 0);
- error = bp ? bp->b_error : XFS_ERROR(EIO);
+ error = bp ? bp->b_error : -EIO;
if (error) {
- xfs_trans_brelse(trans, bp);
+ if (bp)
+ xfs_trans_brelse(trans, bp);
goto out_free;
}
*bpp = NULL;
mapp = ↦
nmap = 1;
- error = xfs_dabuf_map(trans, dp, bno, mappedbno, whichfork,
+ error = xfs_dabuf_map(dp, bno, mappedbno, whichfork,
&mapp, &nmap);
if (error) {
/* mapping a hole is not an error, but we don't continue */
xfs_buf_set_ref(bp, XFS_ATTR_BTREE_REF);
else
xfs_buf_set_ref(bp, XFS_DIR_BTREE_REF);
-
- /*
- * This verification code will be moved to a CRC verification callback
- * function so just leave it here unchanged until then.
- */
- {
- xfs_dir2_data_hdr_t *hdr = bp->b_addr;
- xfs_dir2_free_t *free = bp->b_addr;
- xfs_da_blkinfo_t *info = bp->b_addr;
- uint magic, magic1;
- struct xfs_mount *mp = dp->i_mount;
-
- magic = be16_to_cpu(info->magic);
- magic1 = be32_to_cpu(hdr->magic);
- if (unlikely(
- XFS_TEST_ERROR((magic != XFS_DA_NODE_MAGIC) &&
- (magic != XFS_ATTR_LEAF_MAGIC) &&
- (magic != XFS_DIR2_LEAF1_MAGIC) &&
- (magic != XFS_DIR2_LEAFN_MAGIC) &&
- (magic1 != XFS_DIR2_BLOCK_MAGIC) &&
- (magic1 != XFS_DIR2_DATA_MAGIC) &&
- (free->hdr.magic != cpu_to_be32(XFS_DIR2_FREE_MAGIC)),
- mp, XFS_ERRTAG_DA_READ_BUF,
- XFS_RANDOM_DA_READ_BUF))) {
- trace_xfs_da_btree_corrupt(bp, _RET_IP_);
- XFS_CORRUPTION_ERROR("xfs_da_do_buf(2)",
- XFS_ERRLEVEL_LOW, mp, info);
- error = XFS_ERROR(EFSCORRUPTED);
- xfs_trans_brelse(trans, bp);
- goto out_free;
- }
- }
*bpp = bp;
out_free:
if (mapp != &map)
/*
* Readahead the dir/attr block.
*/
-xfs_daddr_t
+int
xfs_da_reada_buf(
- struct xfs_trans *trans,
struct xfs_inode *dp,
xfs_dablk_t bno,
xfs_daddr_t mappedbno,
mapp = ↦
nmap = 1;
- error = xfs_dabuf_map(trans, dp, bno, mappedbno, whichfork,
+ error = xfs_dabuf_map(dp, bno, mappedbno, whichfork,
&mapp, &nmap);
if (error) {
/* mapping a hole is not an error, but we don't continue */
if (mapp != &map)
kmem_free(mapp);
- if (error)
- return -1;
- return mappedbno;
-}
-
-kmem_zone_t *xfs_da_state_zone; /* anchor for state struct zone */
-
-/*
- * Allocate a dir-state structure.
- * We don't put them on the stack since they're large.
- */
-xfs_da_state_t *
-xfs_da_state_alloc(void)
-{
- return kmem_zone_zalloc(xfs_da_state_zone, KM_NOFS);
-}
-
-/*
- * Kill the altpath contents of a da-state structure.
- */
-STATIC void
-xfs_da_state_kill_altpath(xfs_da_state_t *state)
-{
- int i;
-
- for (i = 0; i < state->altpath.active; i++)
- state->altpath.blk[i].bp = NULL;
- state->altpath.active = 0;
-}
-
-/*
- * Free a da-state structure.
- */
-void
-xfs_da_state_free(xfs_da_state_t *state)
-{
- xfs_da_state_kill_altpath(state);
-#ifdef DEBUG
- memset((char *)state, 0, sizeof(*state));
-#endif /* DEBUG */
- kmem_zone_free(xfs_da_state_zone, state);
+ return error;
}
projects / thirdparty / xfsprogs-dev.git / blobdiff