Extern or forward variable declaration at include/linux/buffer_head.h, line 49 References: drivers/block/loop.c, line 214 drivers/block/loop.c, line 656 drivers/block/loop.c, line 743 drivers/mtd/devices/block2mtd.c, line 38 drivers/mtd/devices/block2mtd.c, line 46 drivers/mtd/devices/block2mtd.c, line 147 fs/adfs/inode.c, line 48 fs/adfs/inode.c, line 58 fs/affs/file.c, line 405 fs/affs/file.c, line 415 fs/affs/file.c, line 611 fs/affs/file.c, line 648 fs/affs/file.c, line 823 fs/befs/linuxvfs.c, line 36 fs/befs/linuxvfs.c, line 102 fs/bfs/file.c, line 167 fs/bfs/file.c, line 176 fs/block_dev.c, line 347 fs/block_dev.c, line 356 fs/btrfs/compression.c, line 447 fs/btrfs/disk-io.c, line 707 fs/btrfs/disk-io.c, line 1317 fs/btrfs/inode.c, line 3070 fs/btrfs/inode.c, line 4843 fs/btrfs/inode.c, line 4853 fs/btrfs/inode.c, line 5161 fs/buffer.c, line 188 fs/buffer.c, line 272 fs/buffer.c, line 614 fs/buffer.c, line 616 fs/buffer.c, line 645 fs/buffer.c, line 646 fs/buffer.c, line 672 fs/buffer.c, line 713 fs/buffer.c, line 760 fs/buffer.c, line 844 fs/buffer.c, line 846 fs/buffer.c, line 867 fs/buffer.c, line 869 fs/buffer.c, line 1176 fs/buffer.c, line 1209 fs/buffer.c, line 1967 fs/buffer.c, line 2019 fs/buffer.c, line 2055 fs/buffer.c, line 2239 fs/buffer.c, line 2262 fs/buffer.c, line 2335 fs/buffer.c, line 2478 fs/buffer.c, line 2623 fs/buffer.c, line 2710 fs/buffer.c, line 2788 fs/buffer.c, line 2917 fs/buffer.c, line 3148 fs/buffer.c, line 3197 fs/cramfs/inode.c, line 137 fs/direct-io.c, line 1172 fs/efs/inode.c, line 20 fs/exofs/file.c, line 47 fs/exofs/inode.c, line 398 fs/exofs/inode.c, line 642 fs/exofs/inode.c, line 691 fs/exofs/inode.c, line 724 fs/ext2/dir.c, line 86 fs/ext2/dir.c, line 196 fs/ext2/dir.c, line 579 fs/ext2/dir.c, line 624 fs/ext2/inode.c, line 745 fs/ext2/inode.c, line 751 fs/ext2/inode.c, line 760 fs/ext2/inode.c, line 769 fs/ext2/inode.c, line 788 fs/ext2/inode.c, line 805 fs/ext2/xip.c, line 77 fs/ext3/inode.c, line 1154 fs/ext3/inode.c, line 1276 fs/ext3/inode.c, line 1312 fs/ext3/inode.c, line 1338 fs/ext3/inode.c, line 1404 fs/ext3/inode.c, line 1692 fs/ext3/inode.c, line 1891 fs/ext3/inode.c, line 2381 fs/ext4/ext4.h, line 1425 fs/ext4/extents.c, line 3353 fs/ext4/file.c, line 91 fs/ext4/inode.c, line 1156 fs/ext4/inode.c, line 1537 fs/ext4/inode.c, line 1630 fs/ext4/inode.c, line 1683 fs/ext4/inode.c, line 1727 fs/ext4/inode.c, line 1768 fs/ext4/inode.c, line 1969 fs/ext4/inode.c, line 2033 fs/ext4/inode.c, line 2129 fs/ext4/inode.c, line 2606 fs/ext4/inode.c, line 2798 fs/ext4/inode.c, line 3036 fs/ext4/inode.c, line 3127 fs/ext4/inode.c, line 3271 fs/ext4/inode.c, line 3325 fs/ext4/inode.c, line 3913 fs/ext4/inode.c, line 4418 fs/ext4/inode.c, line 5737 fs/ext4/move_extent.c, line 823 fs/fat/file.c, line 169 fs/fat/inode.c, line 128 fs/fat/inode.c, line 139 fs/fat/inode.c, line 145 fs/fat/inode.c, line 155 fs/fat/inode.c, line 200 fs/fat/inode.c, line 1512 fs/fat/inode.c, line 1545 fs/freevxfs/vxfs_subr.c, line 43 fs/freevxfs/vxfs_subr.c, line 70 fs/freevxfs/vxfs_subr.c, line 182 fs/fs-writeback.c, line 422 fs/fs-writeback.c, line 1163 fs/fscache/page.c, line 258 fs/fscache/page.c, line 481 fs/gfs2/aops.c, line 244 fs/gfs2/aops.c, line 261 fs/gfs2/aops.c, line 338 fs/gfs2/aops.c, line 407 fs/gfs2/aops.c, line 506 fs/gfs2/aops.c, line 543 fs/gfs2/aops.c, line 585 fs/gfs2/aops.c, line 621 fs/gfs2/aops.c, line 853 fs/gfs2/aops.c, line 933 fs/gfs2/bmap.c, line 959 fs/gfs2/glops.c, line 89 fs/gfs2/glops.c, line 115 fs/gfs2/glops.c, line 136 fs/gfs2/glops.c, line 151 fs/gfs2/glops.c, line 185 fs/gfs2/lops.c, line 504 fs/gfs2/meta_io.c, line 146 fs/gfs2/meta_io.c, line 167 fs/gfs2/quota.c, line 651 fs/hfs/bnode.c, line 239 fs/hfs/btree.c, line 21 fs/hfs/extent.c, line 466 fs/hfs/inode.c, line 38 fs/hfs/inode.c, line 48 fs/hfs/inode.c, line 120 fs/hfsplus/bitmap.c, line 21 fs/hfsplus/bitmap.c, line 164 fs/hfsplus/bnode.c, line 399 fs/hfsplus/btree.c, line 24 fs/hfsplus/extents.c, line 447 fs/hfsplus/inode.c, line 30 fs/hfsplus/inode.c, line 40 fs/hfsplus/inode.c, line 113 fs/hpfs/file.c, line 96 fs/hpfs/file.c, line 106 fs/inode.c, line 133 fs/ioctl.c, line 63 fs/isofs/compress.c, line 46 fs/isofs/inode.c, line 1099 fs/jbd2/commit.c, line 216 fs/jbd2/commit.c, line 243 fs/jfs/inode.c, line 279 fs/jfs/inode.c, line 290 fs/jfs/inode.c, line 296 fs/jfs/inode.c, line 304 fs/jfs/jfs_logmgr.c, line 213 fs/jfs/jfs_metapage.c, line 597 fs/jfs/jfs_metapage.c, line 782 fs/libfs.c, line 353 fs/libfs.c, line 391 fs/minix/dir.c, line 55 fs/minix/dir.c, line 73 fs/minix/dir.c, line 307 fs/minix/dir.c, line 335 fs/minix/dir.c, line 435 fs/minix/dir.c, line 480 fs/minix/inode.c, line 358 fs/minix/inode.c, line 366 fs/minix/inode.c, line 374 fs/mpage.c, line 373 fs/mpage.c, line 455 fs/mpage.c, line 680 fs/nilfs2/btnode.c, line 37 fs/nilfs2/btnode.c, line 54 fs/nilfs2/btnode.c, line 65 fs/nilfs2/btnode.c, line 71 fs/nilfs2/btnode.c, line 138 fs/nilfs2/btnode.c, line 168 fs/nilfs2/btnode.c, line 194 fs/nilfs2/btnode.c, line 263 fs/nilfs2/btnode.c, line 304 fs/nilfs2/btnode.h, line 40 fs/nilfs2/btnode.h, line 41 fs/nilfs2/btnode.h, line 42 fs/nilfs2/btnode.h, line 43 fs/nilfs2/btnode.h, line 45 fs/nilfs2/btnode.h, line 48 fs/nilfs2/btnode.h, line 50 fs/nilfs2/btnode.h, line 52 fs/nilfs2/btree.c, line 115 fs/nilfs2/btree.c, line 123 fs/nilfs2/btree.c, line 2022 fs/nilfs2/dir.c, line 84 fs/nilfs2/dir.c, line 94 fs/nilfs2/dir.c, line 103 fs/nilfs2/dir.c, line 203 fs/nilfs2/dir.c, line 450 fs/nilfs2/dir.c, line 571 fs/nilfs2/dir.c, line 612 fs/nilfs2/gcdat.c, line 54 fs/nilfs2/gcdat.c, line 55 fs/nilfs2/inode.c, line 136 fs/nilfs2/inode.c, line 142 fs/nilfs2/inode.c, line 187 fs/nilfs2/inode.c, line 206 fs/nilfs2/mdt.c, line 457 fs/nilfs2/nilfs.h, line 48 fs/nilfs2/nilfs.h, line 79 fs/nilfs2/nilfs.h, line 86 fs/nilfs2/page.c, line 74 fs/nilfs2/page.c, line 205 fs/nilfs2/page.c, line 343 fs/nilfs2/page.c, line 344 fs/nilfs2/page.c, line 398 fs/nilfs2/page.c, line 399 fs/nilfs2/page.c, line 460 fs/nilfs2/page.c, line 526 fs/nilfs2/page.h, line 47 fs/nilfs2/page.h, line 57 fs/nilfs2/page.h, line 58 fs/nilfs2/page.h, line 59 fs/nilfs2/segment.c, line 672 fs/nilfs2/segment.c, line 733 fs/nilfs2/segment.c, line 1724 fs/ntfs/aops.c, line 1594 fs/ntfs/attrib.c, line 2496 fs/ntfs/compress.c, line 485 fs/ntfs/dir.c, line 93 fs/ntfs/dir.c, line 647 fs/ntfs/dir.c, line 1113 fs/ntfs/file.c, line 124 fs/ntfs/file.c, line 414 fs/ntfs/file.c, line 1787 fs/ntfs/file.c, line 2093 fs/ntfs/file.c, line 2131 fs/ntfs/logfile.c, line 489 fs/ntfs/mft.c, line 1135 fs/ntfs/super.c, line 2461 fs/ntfs/super.c, line 2541 fs/ocfs2/alloc.c, line 7083 fs/ocfs2/aops.c, line 340 fs/ocfs2/aops.c, line 492 fs/ocfs2/aops.c, line 1157 fs/ocfs2/aops.c, line 1226 fs/ocfs2/aops.c, line 1326 fs/ocfs2/aops.c, line 1512 fs/ocfs2/aops.c, line 1577 fs/ocfs2/aops.c, line 1672 fs/ocfs2/aops.c, line 1853 fs/ocfs2/aops.c, line 1921 fs/ocfs2/aops.c, line 1997 fs/ocfs2/dlmglue.c, line 3493 fs/ocfs2/file.c, line 744 fs/ocfs2/file.c, line 1352 fs/ocfs2/file.c, line 1441 fs/ocfs2/file.c, line 2081 fs/ocfs2/mmap.c, line 91 fs/ocfs2/refcounttree.c, line 2853 fs/omfs/file.c, line 294 fs/omfs/file.c, line 306 fs/omfs/file.c, line 311 fs/omfs/file.c, line 320 fs/qnx4/inode.c, line 337 fs/qnx4/inode.c, line 347 fs/reiserfs/inode.c, line 1044 fs/reiserfs/inode.c, line 2535 fs/reiserfs/inode.c, line 2653 fs/reiserfs/inode.c, line 2658 fs/reiserfs/ioctl.c, line 165 fs/reiserfs/xattr.c, line 389 fs/splice.c, line 44 fs/splice.c, line 272 fs/splice.c, line 683 fs/splice.c, line 948 fs/sync.c, line 208 fs/sync.c, line 443 fs/sysv/dir.c, line 43 fs/sysv/dir.c, line 61 fs/sysv/dir.c, line 242 fs/sysv/dir.c, line 262 fs/sysv/dir.c, line 344 fs/sysv/itree.c, line 462 fs/sysv/itree.c, line 470 fs/sysv/itree.c, line 478 fs/sysv/sysv.h, line 139 fs/udf/file.c, line 82 fs/udf/inode.c, line 123 fs/udf/inode.c, line 132 fs/ufs/balloc.c, line 255 fs/ufs/dir.c, line 45 fs/ufs/dir.c, line 193 fs/ufs/dir.c, line 521 fs/ufs/dir.c, line 570 fs/ufs/inode.c, line 560 fs/ufs/inode.c, line 568 fs/ufs/inode.c, line 576 fs/ufs/truncate.c, line 384 fs/ufs/util.c, line 248 fs/ufs/util.h, line 260 fs/ufs/util.h, line 284 fs/xfs/linux-2.6/xfs_buf.h, line 111 include/linux/buffer_head.h, line 49 include/linux/buffer_head.h, line 74 include/linux/buffer_head.h, line 165 include/linux/buffer_head.h, line 206 include/linux/buffer_head.h, line 209 include/linux/buffer_head.h, line 212 include/linux/buffer_head.h, line 217 include/linux/buffer_head.h, line 225 include/linux/buffer_head.h, line 226 include/linux/buffer_head.h, line 228 include/linux/buffer_head.h, line 231 include/linux/buffer_head.h, line 234 include/linux/buffer_head.h, line 341 mm/filemap.c, line 120 mm/filemap.c, line 145 mm/filemap.c, line 157 mm/filemap.c, line 212 mm/filemap.c, line 230 mm/filemap.c, line 236 mm/filemap.c, line 242 mm/filemap.c, line 256 mm/filemap.c, line 271 mm/filemap.c, line 326 mm/filemap.c, line 341 mm/filemap.c, line 353 mm/filemap.c, line 386 mm/filemap.c, line 417 mm/filemap.c, line 457 mm/filemap.c, line 637 mm/filemap.c, line 680 mm/filemap.c, line 717 mm/filemap.c, line 763 mm/filemap.c, line 816 mm/filemap.c, line 873 mm/filemap.c, line 933 mm/filemap.c, line 989 mm/filemap.c, line 1299 mm/filemap.c, line 1347 mm/filemap.c, line 1366 mm/filemap.c, line 1395 mm/filemap.c, line 1429 mm/filemap.c, line 1474 mm/filemap.c, line 1502 mm/filemap.c, line 1622 mm/filemap.c, line 1655 mm/filemap.c, line 1700 mm/filemap.c, line 1748 mm/filemap.c, line 2046 mm/filemap.c, line 2057 mm/filemap.c, line 2074 mm/filemap.c, line 2142 mm/filemap.c, line 2173 mm/filemap.c, line 2264 mm/filemap.c, line 2312 mm/filemap.c, line 2462 mm/migrate.c, line 152 mm/migrate.c, line 257 mm/migrate.c, line 385 mm/migrate.c, line 398 mm/migrate.c, line 421 mm/migrate.c, line 478 mm/migrate.c, line 520 mm/migrate.c, line 550 mm/page-writeback.c, line 483 mm/page-writeback.c, line 606 mm/page-writeback.c, line 629 mm/page-writeback.c, line 820 mm/page-writeback.c, line 998 mm/page-writeback.c, line 1012 mm/page-writeback.c, line 1024 mm/page-writeback.c, line 1048 mm/page-writeback.c, line 1090 mm/page-writeback.c, line 1118 mm/page-writeback.c, line 1119 mm/page-writeback.c, line 1169 mm/page-writeback.c, line 1224 mm/page-writeback.c, line 1281 mm/page-writeback.c, line 1310 mm/page-writeback.c, line 1345 mm/swap.c, line 475 mm/swap.c, line 484 mm/swap_state.c, line 42 mm/truncate.c, line 74 mm/truncate.c, line 97 mm/truncate.c, line 123 mm/truncate.c, line 139 mm/truncate.c, line 152 mm/truncate.c, line 174 mm/truncate.c, line 207 mm/truncate.c, line 300 mm/truncate.c, line 319 mm/truncate.c, line 371 mm/truncate.c, line 395 mm/truncate.c, line 415 mm/truncate.c, line 495 mm/truncate.c, line 520 mm/vmscan.c, line 269 mm/vmscan.c, line 320 mm/vmscan.c, line 351 mm/vmscan.c, line 434 mm/vmscan.c, line 497 mm/vmscan.c, line 600 mm/vmscan.c, line 2740