/*
* Look up a name in a leaf directory structure, replace the inode number.
* This is the external routine.
*/
STATIC int
xfs_dir_leaf_replace(xfs_da_args_t *args)
{
int index, retval;
xfs_dabuf_t *bp;
xfs_ino_t inum;
xfs_dir_leafblock_t *leaf;
xfs_dir_leaf_entry_t *entry;
xfs_dir_leaf_name_t *namest;
inum = args->inumber;
retval = xfs_da_read_buf(args->trans, args->dp, 0, -1, &bp,
XFS_DATA_FORK);
if (retval)
return(retval);
ASSERT(bp != NULL);
retval = xfs_dir_leaf_lookup_int(bp, args, &index);
if (retval == EEXIST) {
leaf = bp->data;
entry = &leaf->entries[index];
namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT));
/* XXX - replace assert? */
XFS_DIR_SF_PUT_DIRINO_ARCH(&inum, &namest->inumber, ARCH_CONVERT);
xfs_da_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, namest, sizeof(namest->inumber)));
xfs_da_buf_done(bp);
retval = 0;
} else
xfs_da_brelse(args->trans, bp);
return(retval);
}
/*
* Look up a filename in an int directory, replace the inode number.
* Use an internal routine to actually do the lookup.
*/
STATIC int
xfs_dir_node_replace(xfs_da_args_t *args)
{
xfs_da_state_t *state;
xfs_da_state_blk_t *blk;
xfs_dir_leafblock_t *leaf;
xfs_dir_leaf_entry_t *entry;
xfs_dir_leaf_name_t *namest;
xfs_ino_t inum;
int retval, error, i;
xfs_dabuf_t *bp;
state = xfs_da_state_alloc();
state->args = args;
state->mp = args->dp->i_mount;
state->blocksize = state->mp->m_sb.sb_blocksize;
inum = args->inumber;
/*
* Search to see if name exists,
* and get back a pointer to it.
*/
error = xfs_da_node_lookup_int(state, &retval);
if (error) {
retval = error;
}
if (retval == EEXIST) {
blk = &state->path.blk[state->path.active - 1];
ASSERT(blk->magic == XFS_DIR_LEAF_MAGIC);
bp = blk->bp;
leaf = bp->data;
entry = &leaf->entries[blk->index];
namest = XFS_DIR_LEAF_NAMESTRUCT(leaf, INT_GET(entry->nameidx, ARCH_CONVERT));
/* XXX - replace assert ? */
XFS_DIR_SF_PUT_DIRINO_ARCH(&inum, &namest->inumber, ARCH_CONVERT);
xfs_da_log_buf(args->trans, bp,
XFS_DA_LOGRANGE(leaf, namest, sizeof(namest->inumber)));
xfs_da_buf_done(bp);
blk->bp = NULL;
retval = 0;
} else {
i = state->path.active - 1;
xfs_da_brelse(args->trans, state->path.blk[i].bp);
state->path.blk[i].bp = NULL;
}
for (i = 0; i < state->path.active - 1; i++) {
xfs_da_brelse(args->trans, state->path.blk[i].bp);
state->path.blk[i].bp = NULL;
}
xfs_da_state_free(state);
return(retval);
}
/*
* Log the block tail.
*/
static void
xfs_dir2_block_log_tail(
xfs_trans_t *tp, /* transaction structure */
xfs_dabuf_t *bp) /* block buffer */
{
xfs_dir2_block_t *block; /* directory block structure */
xfs_dir2_block_tail_t *btp; /* block tail */
xfs_mount_t *mp; /* filesystem mount point */
mp = tp->t_mountp;
block = bp->data;
btp = xfs_dir2_block_tail_p(mp, block);
xfs_da_log_buf(tp, bp, (uint)((char *)btp - (char *)block),
(uint)((char *)(btp + 1) - (char *)block - 1));
}
/*
* Log leaf entries from the block.
*/
static void
xfs_dir2_block_log_leaf(
xfs_trans_t *tp, /* transaction structure */
xfs_dabuf_t *bp, /* block buffer */
int first, /* index of first logged leaf */
int last) /* index of last logged leaf */
{
xfs_dir2_block_t *block; /* directory block structure */
xfs_dir2_leaf_entry_t *blp; /* block leaf entries */
xfs_dir2_block_tail_t *btp; /* block tail */
xfs_mount_t *mp; /* filesystem mount point */
mp = tp->t_mountp;
block = bp->data;
btp = xfs_dir2_block_tail_p(mp, block);
blp = xfs_dir2_block_leaf_p(btp);
xfs_da_log_buf(tp, bp, (uint)((char *)&blp[first] - (char *)block),
(uint)((char *)&blp[last + 1] - (char *)block - 1));
}
