- goto out;
- }
-
- ret = ocfs2_xattr_get_rec(inode, name_hash, &p_blkno, &e_cpos,
- &num_clusters, el);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
- ret = ocfs2_read_xattr_bucket(first, p_blkno);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
- num_buckets = ocfs2_xattr_buckets_per_cluster(osb) * num_clusters;
- if (num_buckets == le16_to_cpu(bucket_xh(first)->xh_num_buckets)) {
- /*
- * This can move first+target if the target bucket moves
- * to the new extent.
- */
- ret = ocfs2_add_new_xattr_cluster(inode,
- xb_bh,
- first,
- target,
- &num_clusters,
- e_cpos,
- &extend,
- ctxt);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
- }
-
- if (extend) {
- ret = ocfs2_extend_xattr_bucket(inode,
- ctxt->handle,
- first,
- bucket_blkno(target),
- num_clusters);
- if (ret)
- mlog_errno(ret);
- }
-
-out:
- ocfs2_xattr_bucket_free(first);
-
- return ret;
-}
-
-static inline char *ocfs2_xattr_bucket_get_val(struct inode *inode,
- struct ocfs2_xattr_bucket *bucket,
- int offs)
-{
- int block_off = offs >> inode->i_sb->s_blocksize_bits;
-
- offs = offs % inode->i_sb->s_blocksize;
- return bucket_block(bucket, block_off) + offs;
-}
-
-/*
- * Handle the normal xattr set, including replace, delete and new.
- *
- * Note: "local" indicates the real data's locality. So we can't
- * just its bucket locality by its length.
- */
-static void ocfs2_xattr_set_entry_normal(struct inode *inode,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- u32 name_hash,
- int local)
-{
- struct ocfs2_xattr_entry *last, *xe;
- int name_len = strlen(xi->name);
- struct ocfs2_xattr_header *xh = xs->header;
- u16 count = le16_to_cpu(xh->xh_count), start;
- size_t blocksize = inode->i_sb->s_blocksize;
- char *val;
- size_t offs, size, new_size;
-
- last = &xh->xh_entries[count];
- if (!xs->not_found) {
- xe = xs->here;
- offs = le16_to_cpu(xe->xe_name_offset);
- if (ocfs2_xattr_is_local(xe))
- size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(le64_to_cpu(xe->xe_value_size));
- else
- size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(OCFS2_XATTR_ROOT_SIZE);
-
- /*
- * If the new value will be stored outside, xi->value has been
- * initalized as an empty ocfs2_xattr_value_root, and the same
- * goes with xi->value_len, so we can set new_size safely here.
- * See ocfs2_xattr_set_in_bucket.
- */
- new_size = OCFS2_XATTR_SIZE(name_len) +
- OCFS2_XATTR_SIZE(xi->value_len);
-
- le16_add_cpu(&xh->xh_name_value_len, -size);
- if (xi->value) {
- if (new_size > size)
- goto set_new_name_value;
-
- /* Now replace the old value with new one. */
- if (local)
- xe->xe_value_size = cpu_to_le64(xi->value_len);
- else
- xe->xe_value_size = 0;
-
- val = ocfs2_xattr_bucket_get_val(inode,
- xs->bucket, offs);
- memset(val + OCFS2_XATTR_SIZE(name_len), 0,
- size - OCFS2_XATTR_SIZE(name_len));
- if (OCFS2_XATTR_SIZE(xi->value_len) > 0)
- memcpy(val + OCFS2_XATTR_SIZE(name_len),
- xi->value, xi->value_len);
-
- le16_add_cpu(&xh->xh_name_value_len, new_size);
- ocfs2_xattr_set_local(xe, local);
- return;
- } else {
- /*
- * Remove the old entry if there is more than one.
- * We don't remove the last entry so that we can
- * use it to indicate the hash value of the empty
- * bucket.
- */
- last -= 1;
- le16_add_cpu(&xh->xh_count, -1);
- if (xh->xh_count) {
- memmove(xe, xe + 1,
- (void *)last - (void *)xe);
- memset(last, 0,
- sizeof(struct ocfs2_xattr_entry));
- } else
- xh->xh_free_start =
- cpu_to_le16(OCFS2_XATTR_BUCKET_SIZE);
-
- return;
- }
- } else {
- /* find a new entry for insert. */
- int low = 0, high = count - 1, tmp;
- struct ocfs2_xattr_entry *tmp_xe;
-
- while (low <= high && count) {
- tmp = (low + high) / 2;
- tmp_xe = &xh->xh_entries[tmp];
-
- if (name_hash > le32_to_cpu(tmp_xe->xe_name_hash))
- low = tmp + 1;
- else if (name_hash <
- le32_to_cpu(tmp_xe->xe_name_hash))
- high = tmp - 1;
- else {
- low = tmp;
- break;
- }
- }
-
- xe = &xh->xh_entries[low];
- if (low != count)
- memmove(xe + 1, xe, (void *)last - (void *)xe);
-
- le16_add_cpu(&xh->xh_count, 1);
- memset(xe, 0, sizeof(struct ocfs2_xattr_entry));
- xe->xe_name_hash = cpu_to_le32(name_hash);
- xe->xe_name_len = name_len;
- ocfs2_xattr_set_type(xe, xi->name_index);
- }
-
-set_new_name_value:
- /* Insert the new name+value. */
- size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_SIZE(xi->value_len);
-
- /*
- * We must make sure that the name/value pair
- * exists in the same block.
- */
- offs = le16_to_cpu(xh->xh_free_start);
- start = offs - size;
-
- if (start >> inode->i_sb->s_blocksize_bits !=
- (offs - 1) >> inode->i_sb->s_blocksize_bits) {
- offs = offs - offs % blocksize;
- xh->xh_free_start = cpu_to_le16(offs);
- }
-
- val = ocfs2_xattr_bucket_get_val(inode, xs->bucket, offs - size);
- xe->xe_name_offset = cpu_to_le16(offs - size);
-
- memset(val, 0, size);
- memcpy(val, xi->name, name_len);
- memcpy(val + OCFS2_XATTR_SIZE(name_len), xi->value, xi->value_len);
-
- xe->xe_value_size = cpu_to_le64(xi->value_len);
- ocfs2_xattr_set_local(xe, local);
- xs->here = xe;
- le16_add_cpu(&xh->xh_free_start, -size);
- le16_add_cpu(&xh->xh_name_value_len, size);
-
- return;
-}
-
-/*
- * Set the xattr entry in the specified bucket.
- * The bucket is indicated by xs->bucket and it should have the enough
- * space for the xattr insertion.
- */
-static int ocfs2_xattr_set_entry_in_bucket(struct inode *inode,
- handle_t *handle,
- struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs,
- u32 name_hash,
- int local)
-{
- int ret;
- u64 blkno;