840 static int gfs2_journaled_truncate(struct inode *inode, u64 oldsize, u64 newsize)  in gfs2_journaled_truncate()  argument
847 	while (oldsize != newsize) {  in gfs2_journaled_truncate()
848 		chunk = oldsize - newsize;  in gfs2_journaled_truncate()
862 static int trunc_start(struct inode *inode, u64 oldsize, u64 newsize)  in trunc_start()  argument
885 		gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode) + newsize);  in trunc_start()
887 		if (newsize & (u64)(sdp->sd_sb.sb_bsize - 1)) {  in trunc_start()
888 			error = gfs2_block_truncate_page(mapping, newsize);  in trunc_start()
895 	i_size_write(inode, newsize);  in trunc_start()
900 		error = gfs2_journaled_truncate(inode, oldsize, newsize);  in trunc_start()
902 		truncate_pagecache(inode, newsize);  in trunc_start()
1150 static int trunc_dealloc(struct gfs2_inode *ip, u64 newsize)  in trunc_dealloc()  argument
1166 	if (!newsize)  in trunc_dealloc()
1169 		lblock = (newsize - 1) >> sdp->sd_sb.sb_bsize_shift;  in trunc_dealloc()
1216 			preserve1 = (newsize && mp_eq_to_hgt(&mp, nbof, mp_h));  in trunc_dealloc()
1379 static int do_shrink(struct inode *inode, u64 oldsize, u64 newsize)  in do_shrink()  argument
1384 	error = trunc_start(inode, oldsize, newsize);  in do_shrink()
1390 	error = trunc_dealloc(ip, newsize);  in do_shrink()
1494 int gfs2_setattr_size(struct inode *inode, u64 newsize)  in gfs2_setattr_size()  argument
1502 	ret = inode_newsize_ok(inode, newsize);  in gfs2_setattr_size()
1513 	if (newsize >= oldsize) {  in gfs2_setattr_size()
1514 		ret = do_grow(inode, newsize);  in gfs2_setattr_size()
1518 	ret = do_shrink(inode, oldsize, newsize);  in gfs2_setattr_size()