-static int ext4_xattr_ensure_credits(handle_t *handle, struct inode *inode,
- int credits, struct buffer_head *bh,
- bool dirty, bool block_csum)
-{
- int error;
-
- if (!ext4_handle_valid(handle))
- return 0;
-
- if (handle->h_buffer_credits >= credits)
- return 0;
-
- error = ext4_journal_extend(handle, credits - handle->h_buffer_credits);
- if (!error)
- return 0;
- if (error < 0) {
- ext4_warning(inode->i_sb, "Extend journal (error %d)", error);
- return error;
- }
-
- if (bh && dirty) {
- if (block_csum)
- ext4_xattr_block_csum_set(inode, bh);
- error = ext4_handle_dirty_metadata(handle, NULL, bh);
- if (error) {
- ext4_warning(inode->i_sb, "Handle metadata (error %d)",
- error);
- return error;
- }
- }
-
- error = ext4_journal_restart(handle, credits);
- if (error) {
- ext4_warning(inode->i_sb, "Restart journal (error %d)", error);
- return error;
- }
-
- if (bh) {
- error = ext4_journal_get_write_access(handle, bh);
- if (error) {
- ext4_warning(inode->i_sb,
- "Get write access failed (error %d)",
- error);
- return error;
- }
- }
- return 0;
-}
-