119 static void ea_release(struct inode *inode, struct ea_buffer *ea_buf);
426 static int ea_get(struct inode *inode, struct ea_buffer *ea_buf, int min_size)  in ea_get()  argument
437 	memset(&ea_buf->new_ea, 0, sizeof(ea_buf->new_ea));  in ea_get()
445 			ea_buf->flag = 0;  in ea_get()
446 			ea_buf->max_size = 0;  in ea_get()
447 			ea_buf->xattr = NULL;  in ea_get()
452 			ea_buf->flag = EA_INLINE | EA_NEW;  in ea_get()
453 			ea_buf->max_size = sizeof (ji->i_inline_ea);  in ea_get()
454 			ea_buf->xattr = (struct jfs_ea_list *) ji->i_inline_ea;  in ea_get()
455 			DXDlength(&ea_buf->new_ea, 0);  in ea_get()
456 			DXDaddress(&ea_buf->new_ea, 0);  in ea_get()
457 			ea_buf->new_ea.flag = DXD_INLINE;  in ea_get()
458 			DXDsize(&ea_buf->new_ea, min_size);  in ea_get()
464 			ea_buf->flag = EA_INLINE;  in ea_get()
465 			ea_buf->max_size = sizeof (ji->i_inline_ea);  in ea_get()
466 			ea_buf->xattr = (struct jfs_ea_list *) ji->i_inline_ea;  in ea_get()
486 		ea_buf->max_size = (size + sb->s_blocksize - 1) &  in ea_get()
489 		ea_buf->xattr = kmalloc(ea_buf->max_size, GFP_KERNEL);  in ea_get()
490 		if (ea_buf->xattr == NULL)  in ea_get()
493 		ea_buf->flag = EA_MALLOC;  in ea_get()
498 		if ((rc = ea_read(inode, ea_buf->xattr))) {  in ea_get()
499 			kfree(ea_buf->xattr);  in ea_get()
500 			ea_buf->xattr = NULL;  in ea_get()
521 		DXDlength(&ea_buf->new_ea, blocks_needed);  in ea_get()
522 		DXDaddress(&ea_buf->new_ea, blkno);  in ea_get()
523 		ea_buf->new_ea.flag = DXD_EXTENT;  in ea_get()
524 		DXDsize(&ea_buf->new_ea, min_size);  in ea_get()
526 		ea_buf->flag = EA_EXTENT | EA_NEW;  in ea_get()
528 		ea_buf->mp = get_metapage(inode, blkno,  in ea_get()
531 		if (ea_buf->mp == NULL) {  in ea_get()
536 		ea_buf->xattr = ea_buf->mp->data;  in ea_get()
537 		ea_buf->max_size = (min_size + sb->s_blocksize - 1) &  in ea_get()
541 		if ((rc = ea_read(inode, ea_buf->xattr))) {  in ea_get()
542 			discard_metapage(ea_buf->mp);  in ea_get()
548 	ea_buf->flag = EA_EXTENT;  in ea_get()
549 	ea_buf->mp = read_metapage(inode, addressDXD(&ji->ea),  in ea_get()
552 	if (ea_buf->mp == NULL) {  in ea_get()
556 	ea_buf->xattr = ea_buf->mp->data;  in ea_get()
557 	ea_buf->max_size = (ea_size + sb->s_blocksize - 1) &  in ea_get()
561 	if (EALIST_SIZE(ea_buf->xattr) != ea_size) {  in ea_get()
562 		int size = clamp_t(int, ea_size, 0, EALIST_SIZE(ea_buf->xattr));  in ea_get()
566 				     ea_buf->xattr, size, 1);  in ea_get()
567 		ea_release(inode, ea_buf);  in ea_get()
582 static void ea_release(struct inode *inode, struct ea_buffer *ea_buf)  in ea_release()  argument
584 	if (ea_buf->flag & EA_MALLOC)  in ea_release()
585 		kfree(ea_buf->xattr);  in ea_release()
586 	else if (ea_buf->flag & EA_EXTENT) {  in ea_release()
587 		assert(ea_buf->mp);  in ea_release()
588 		release_metapage(ea_buf->mp);  in ea_release()
590 		if (ea_buf->flag & EA_NEW)  in ea_release()
591 			dbFree(inode, addressDXD(&ea_buf->new_ea),  in ea_release()
592 			       lengthDXD(&ea_buf->new_ea));  in ea_release()
596 static int ea_put(tid_t tid, struct inode *inode, struct ea_buffer *ea_buf,  in ea_put()  argument
604 		ea_release(inode, ea_buf);  in ea_put()
605 		ea_buf = NULL;  in ea_put()
606 	} else if (ea_buf->flag & EA_INLINE) {  in ea_put()
609 		ea_buf->new_ea.flag = DXD_INLINE;  in ea_put()
610 		DXDsize(&ea_buf->new_ea, new_size);  in ea_put()
611 		DXDaddress(&ea_buf->new_ea, 0);  in ea_put()
612 		DXDlength(&ea_buf->new_ea, 0);  in ea_put()
613 	} else if (ea_buf->flag & EA_MALLOC) {  in ea_put()
614 		rc = ea_write(inode, ea_buf->xattr, new_size, &ea_buf->new_ea);  in ea_put()
615 		kfree(ea_buf->xattr);  in ea_put()
616 	} else if (ea_buf->flag & EA_NEW) {  in ea_put()
618 		flush_metapage(ea_buf->mp);  in ea_put()
621 		rc = ea_write(inode, ea_buf->xattr, new_size, &ea_buf->new_ea);  in ea_put()
622 		discard_metapage(ea_buf->mp);  in ea_put()
634 	if (ea_buf) {  in ea_put()
635 		txEA(tid, inode, &ji->ea, &ea_buf->new_ea);  in ea_put()
636 		if (ea_buf->new_ea.flag & DXD_EXTENT) {  in ea_put()
637 			new_blocks = lengthDXD(&ea_buf->new_ea);  in ea_put()
641 		ji->ea = ea_buf->new_ea;  in ea_put()
664 	struct ea_buffer ea_buf;  in __jfs_setxattr()  local
675 	xattr_size = ea_get(inode, &ea_buf, 0);  in __jfs_setxattr()
682 	ealist = (struct jfs_ea_list *) ea_buf.xattr;  in __jfs_setxattr()
716 	if (new_size > ea_buf.max_size) {  in __jfs_setxattr()
721 		ea_release(inode, &ea_buf);  in __jfs_setxattr()
722 		xattr_size = ea_get(inode, &ea_buf, new_size);  in __jfs_setxattr()
787 	rc = ea_put(tid, inode, &ea_buf, new_size);  in __jfs_setxattr()
791 	ea_release(inode, &ea_buf);  in __jfs_setxattr()
803 	struct ea_buffer ea_buf;  in __jfs_getxattr()  local
811 	xattr_size = ea_get(inode, &ea_buf, 0);  in __jfs_getxattr()
821 	ealist = (struct jfs_ea_list *) ea_buf.xattr;  in __jfs_getxattr()
850 	ea_release(inode, &ea_buf);  in __jfs_getxattr()
875 	struct ea_buffer ea_buf;  in jfs_listxattr()  local
879 	xattr_size = ea_get(inode, &ea_buf, 0);  in jfs_listxattr()
888 	ealist = (struct jfs_ea_list *) ea_buf.xattr;  in jfs_listxattr()
921 	ea_release(inode, &ea_buf);  in jfs_listxattr()