153 int dbMount(struct inode *ipbmap)  in dbMount()  argument
169 	mp = read_metapage(ipbmap,  in dbMount()
170 			   BMAPBLKNO << JFS_SBI(ipbmap->i_sb)->l2nbperpage,  in dbMount()
229 	bmp->db_ipbmap = ipbmap;  in dbMount()
230 	JFS_SBI(ipbmap->i_sb)->bmap = bmp;  in dbMount()
265 int dbUnmount(struct inode *ipbmap, int mounterror)  in dbUnmount()  argument
267 	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;  in dbUnmount()
269 	if (!(mounterror || isReadOnly(ipbmap)))  in dbUnmount()
270 		dbSync(ipbmap);  in dbUnmount()
275 	truncate_inode_pages(ipbmap->i_mapping, 0);  in dbUnmount()
279 	JFS_SBI(ipbmap->i_sb)->bmap = NULL;  in dbUnmount()
287 int dbSync(struct inode *ipbmap)  in dbSync()  argument
290 	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;  in dbSync()
298 	mp = read_metapage(ipbmap,  in dbSync()
299 			   BMAPBLKNO << JFS_SBI(ipbmap->i_sb)->l2nbperpage,  in dbSync()
330 	filemap_write_and_wait(ipbmap->i_mapping);  in dbSync()
332 	diWriteSpecial(ipbmap, 0);  in dbSync()
361 	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;  in dbFree()  local
363 	struct super_block *sb = ipbmap->i_sb;  in dbFree()
365 	IREAD_LOCK(ipbmap, RDWRLOCK_DMAP);  in dbFree()
369 		IREAD_UNLOCK(ipbmap);  in dbFree()
382 			jfs_issue_discard(ipbmap, blkno, nblocks);  in dbFree()
396 		mp = read_metapage(ipbmap, lblkno, PSIZE, 0);  in dbFree()
398 			IREAD_UNLOCK(ipbmap);  in dbFree()
412 			IREAD_UNLOCK(ipbmap);  in dbFree()
421 	IREAD_UNLOCK(ipbmap);  in dbFree()
449 dbUpdatePMap(struct inode *ipbmap,  in dbUpdatePMap()  argument
454 	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;  in dbUpdatePMap()
468 		jfs_error(ipbmap->i_sb, "blocks are outside the map\n");  in dbUpdatePMap()
628 int dbNextAG(struct inode *ipbmap)  in dbNextAG()  argument
635 	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;  in dbNextAG()
728 	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;  in dbAlloc()  local
760 		IWRITE_LOCK(ipbmap, RDWRLOCK_DMAP);  in dbAlloc()
801 		IREAD_LOCK(ipbmap, RDWRLOCK_DMAP);  in dbAlloc()
807 		mp = read_metapage(ipbmap, lblkno, PSIZE, 0);  in dbAlloc()
835 			IREAD_UNLOCK(ipbmap);  in dbAlloc()
865 		IREAD_UNLOCK(ipbmap);  in dbAlloc()
871 	IWRITE_LOCK(ipbmap, RDWRLOCK_DMAP);  in dbAlloc()
875 	IWRITE_UNLOCK(ipbmap);  in dbAlloc()
882 	agno = dbNextAG(ipbmap);  in dbAlloc()
883 	IWRITE_LOCK(ipbmap, RDWRLOCK_DMAP);  in dbAlloc()
892 	IWRITE_UNLOCK(ipbmap);  in dbAlloc()
897 	IREAD_UNLOCK(ipbmap);  in dbAlloc()
921 	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;  in dbAllocExact()  local
927 	IREAD_LOCK(ipbmap, RDWRLOCK_DMAP);  in dbAllocExact()
937 		IREAD_UNLOCK(ipbmap);  in dbAllocExact()
943 		IREAD_UNLOCK(ipbmap);  in dbAllocExact()
949 	mp = read_metapage(ipbmap, lblkno, PSIZE, 0);  in dbAllocExact()
951 		IREAD_UNLOCK(ipbmap);  in dbAllocExact()
959 	IREAD_UNLOCK(ipbmap);  in dbAllocExact()
1059 	struct inode *ipbmap = sbi->ipbmap;  in dbExtend()  local
1077 	IREAD_LOCK(ipbmap, RDWRLOCK_DMAP);  in dbExtend()
1082 		IREAD_UNLOCK(ipbmap);  in dbExtend()
1097 		IREAD_UNLOCK(ipbmap);  in dbExtend()
1105 	mp = read_metapage(ipbmap, lblkno, PSIZE, 0);  in dbExtend()
1107 		IREAD_UNLOCK(ipbmap);  in dbExtend()
1118 	IREAD_UNLOCK(ipbmap);  in dbExtend()
1646 	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;  in dbDiscardAG()  local
1651 	struct super_block *sb = ipbmap->i_sb;  in dbDiscardAG()
1663 	IWRITE_LOCK(ipbmap, RDWRLOCK_DMAP);  in dbDiscardAG()
1672 		IWRITE_UNLOCK(ipbmap);  in dbDiscardAG()
1708 	IWRITE_UNLOCK(ipbmap);  in dbDiscardAG()
3253 	struct inode *ipbmap = JFS_SBI(ip->i_sb)->ipbmap;  in dbAllocBottomUp()  local
3256 	IREAD_LOCK(ipbmap, RDWRLOCK_DMAP);  in dbAllocBottomUp()
3273 		mp = read_metapage(ipbmap, lblkno, PSIZE, 0);  in dbAllocBottomUp()
3275 			IREAD_UNLOCK(ipbmap);  in dbAllocBottomUp()
3288 			IREAD_UNLOCK(ipbmap);  in dbAllocBottomUp()
3296 	IREAD_UNLOCK(ipbmap);  in dbAllocBottomUp()
3423 int dbExtendFS(struct inode *ipbmap, s64 blkno,	s64 nblocks)  in dbExtendFS()  argument
3425 	struct jfs_sb_info *sbi = JFS_SBI(ipbmap->i_sb);  in dbExtendFS()
3507 	l2mp = read_metapage(ipbmap, p, PSIZE, 0);  in dbExtendFS()
3509 		jfs_error(ipbmap->i_sb, "L2 page could not be read\n");  in dbExtendFS()
3526 			l1mp = read_metapage(ipbmap, p, PSIZE, 0);  in dbExtendFS()
3538 			l1mp = get_metapage(ipbmap, p, PSIZE, 0);  in dbExtendFS()
3558 				l0mp = read_metapage(ipbmap, p, PSIZE, 0);  in dbExtendFS()
3572 				l0mp = get_metapage(ipbmap, p, PSIZE, 0);  in dbExtendFS()
3594 					mp = read_metapage(ipbmap, p,  in dbExtendFS()
3601 					mp = read_metapage(ipbmap, p,  in dbExtendFS()
3674 	jfs_error(ipbmap->i_sb, "function has not returned as expected\n");  in dbExtendFS()
3695 void dbFinalizeBmap(struct inode *ipbmap)  in dbFinalizeBmap()  argument
3697 	struct bmap *bmp = JFS_SBI(ipbmap->i_sb)->bmap;  in dbFinalizeBmap()
3743 			jfs_error(ipbmap->i_sb,  in dbFinalizeBmap()
4090 s64 dbMapFileSizeToMapSize(struct inode * ipbmap)  in dbMapFileSizeToMapSize()  argument
4092 	struct super_block *sb = ipbmap->i_sb;  in dbMapFileSizeToMapSize()
4098 	nblocks = ipbmap->i_size >> JFS_SBI(sb)->l2bsize;  in dbMapFileSizeToMapSize()