41 static void gfs2_page_add_databufs(struct gfs2_inode *ip, struct page *page,  in gfs2_page_add_databufs()  argument
54 		if (gfs2_is_jdata(ip))  in gfs2_page_add_databufs()
56 		gfs2_trans_add_data(ip->i_gl, bh);  in gfs2_page_add_databufs()
101 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_writepage_common()  local
107 	if (gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(ip->i_gl)))  in gfs2_writepage_common()
157 	struct gfs2_inode *ip = GFS2_I(inode);  in __gfs2_jdata_writepage()  local
166 		gfs2_page_add_databufs(ip, page, 0, sdp->sd_vfs->s_blocksize-1);  in __gfs2_jdata_writepage()
428 	struct gfs2_inode *ip = GFS2_I(mapping->host);  in gfs2_jdata_writepages()  local
434 		gfs2_log_flush(sdp, ip->i_gl, NORMAL_FLUSH);  in gfs2_jdata_writepages()
448 static int stuffed_readpage(struct gfs2_inode *ip, struct page *page)  in stuffed_readpage()  argument
451 	u64 dsize = i_size_read(&ip->i_inode);  in stuffed_readpage()
466 	error = gfs2_meta_inode_buffer(ip, &dibh);  in stuffed_readpage()
497 	struct gfs2_inode *ip = GFS2_I(page->mapping->host);  in __gfs2_readpage()  local
501 	if (gfs2_is_stuffed(ip)) {  in __gfs2_readpage()
502 		error = stuffed_readpage(ip, page);  in __gfs2_readpage()
527 	struct gfs2_inode *ip = GFS2_I(mapping->host);  in gfs2_readpage()  local
532 	gfs2_holder_init(ip->i_gl, LM_ST_SHARED, 0, &gh);  in gfs2_readpage()
559 int gfs2_internal_read(struct gfs2_inode *ip, char *buf, loff_t *pos,  in gfs2_internal_read()  argument
562 	struct address_space *mapping = ip->i_inode.i_mapping;  in gfs2_internal_read()
607 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_readpages()  local
612 	gfs2_holder_init(ip->i_gl, LM_ST_SHARED, 0, &gh);  in gfs2_readpages()
616 	if (!gfs2_is_stuffed(ip))  in gfs2_readpages()
643 	struct gfs2_inode *ip = GFS2_I(mapping->host);  in gfs2_write_begin()  local
654 	gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &ip->i_gh);  in gfs2_write_begin()
655 	error = gfs2_glock_nq(&ip->i_gh);  in gfs2_write_begin()
658 	if (&ip->i_inode == sdp->sd_rindex) {  in gfs2_write_begin()
662 			gfs2_glock_dq(&ip->i_gh);  in gfs2_write_begin()
667 	alloc_required = gfs2_write_alloc_required(ip, pos, len);  in gfs2_write_begin()
669 	if (alloc_required || gfs2_is_jdata(ip))  in gfs2_write_begin()
670 		gfs2_write_calc_reserv(ip, len, &data_blocks, &ind_blocks);  in gfs2_write_begin()
676 		error = gfs2_quota_lock_check(ip, &ap);  in gfs2_write_begin()
680 		error = gfs2_inplace_reserve(ip, &ap);  in gfs2_write_begin()
686 	if (gfs2_is_jdata(ip))  in gfs2_write_begin()
690 	if (&ip->i_inode == sdp->sd_rindex)  in gfs2_write_begin()
693 		rblocks += gfs2_rg_blocks(ip, requested);  in gfs2_write_begin()
707 	if (gfs2_is_stuffed(ip)) {  in gfs2_write_begin()
710 			error = gfs2_unstuff_dinode(ip, page);  in gfs2_write_begin()
714 			error = stuffed_readpage(ip, page);  in gfs2_write_begin()
729 	if (pos + len > ip->i_inode.i_size)  in gfs2_write_begin()
730 		gfs2_trim_blocks(&ip->i_inode);  in gfs2_write_begin()
737 		gfs2_inplace_release(ip);  in gfs2_write_begin()
739 		gfs2_quota_unlock(ip);  in gfs2_write_begin()
742 	if (&ip->i_inode == sdp->sd_rindex) {  in gfs2_write_begin()
746 	gfs2_glock_dq(&ip->i_gh);  in gfs2_write_begin()
748 	gfs2_holder_uninit(&ip->i_gh);  in gfs2_write_begin()
809 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_stuffed_write_end()  local
845 	gfs2_glock_dq(&ip->i_gh);  in gfs2_stuffed_write_end()
846 	gfs2_holder_uninit(&ip->i_gh);  in gfs2_stuffed_write_end()
872 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_write_end()  local
882 	BUG_ON(gfs2_glock_is_locked_by_me(ip->i_gl) == NULL);  in gfs2_write_end()
884 	ret = gfs2_meta_inode_buffer(ip, &dibh);  in gfs2_write_end()
891 	if (gfs2_is_stuffed(ip))  in gfs2_write_end()
894 	if (!gfs2_is_writeback(ip))  in gfs2_write_end()
895 		gfs2_page_add_databufs(ip, page, from, to);  in gfs2_write_end()
901 		gfs2_trans_add_meta(ip->i_gl, dibh);  in gfs2_write_end()
912 	gfs2_inplace_release(ip);  in gfs2_write_end()
913 	if (ip->i_res->rs_qa_qd_num)  in gfs2_write_end()
914 		gfs2_quota_unlock(ip);  in gfs2_write_end()
919 	gfs2_glock_dq(&ip->i_gh);  in gfs2_write_end()
920 	gfs2_holder_uninit(&ip->i_gh);  in gfs2_write_end()
947 	struct gfs2_inode *ip = GFS2_I(mapping->host);  in gfs2_bmap()  local
952 	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh);  in gfs2_bmap()
956 	if (!gfs2_is_stuffed(ip))  in gfs2_bmap()
1024 static int gfs2_ok_for_dio(struct gfs2_inode *ip, loff_t offset)  in gfs2_ok_for_dio()  argument
1031 	if (gfs2_is_stuffed(ip))  in gfs2_ok_for_dio()
1034 	if (offset >= i_size_read(&ip->i_inode))  in gfs2_ok_for_dio()
1047 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_direct_IO()  local
1059 	gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, &gh);  in gfs2_direct_IO()
1063 	rv = gfs2_ok_for_dio(ip, offset);  in gfs2_direct_IO()
1088 		if (test_and_clear_bit(GIF_SW_PAGED, &ip->i_flags))  in gfs2_direct_IO()
1089 			unmap_shared_mapping_range(ip->i_inode.i_mapping, offset, len);  in gfs2_direct_IO()
1218 	struct gfs2_inode *ip = GFS2_I(inode);  in gfs2_set_aops()  local
1220 	if (gfs2_is_writeback(ip))  in gfs2_set_aops()
1222 	else if (gfs2_is_ordered(ip))  in gfs2_set_aops()
1224 	else if (gfs2_is_jdata(ip))  in gfs2_set_aops()