Extern or forward variable declaration at include/linux/swap.h, line 254 References: block/blk-core.c, line 100 block/blk-core.c, line 102 block/blk-core.c, line 106 block/blk-core.c, line 285 block/blk-core.c, line 490 block/blk-core.c, line 491 block/blk-core.c, line 492 fs/buffer.c, line 715 fs/buffer.c, line 3170 fs/gfs2/ops_address.c, line 276 fs/gfs2/ops_address.c, line 345 fs/inode.c, line 168 fs/inode.c, line 177 fs/inode.c, line 181 fs/inode.c, line 182 fs/nfs/write.c, line 203 fs/nfs/write.c, line 215 fs/nfs/write.c, line 414 fs/nfs/write.c, line 425 fs/nfs/write.c, line 1267 fs/nfs/write.c, line 1427 fs/nfs/write.c, line 1461 fs/nfs/write.c, line 1505 fs/ntfs/file.c, line 2114 fs/ntfs/file.c, line 2128 include/linux/swap.h, line 214 include/linux/swap.h, line 254 mm/filemap.c, line 134 mm/filemap.c, line 2540 mm/filemap.c, line 2612 mm/nommu.c, line 622 mm/nommu.c, line 623 mm/nommu.c, line 1305 mm/page-writeback.c, line 163 mm/page-writeback.c, line 169 mm/page-writeback.c, line 187 mm/page-writeback.c, line 205 mm/page-writeback.c, line 261 mm/page-writeback.c, line 283 mm/page-writeback.c, line 370 mm/page-writeback.c, line 436 mm/page-writeback.c, line 565 mm/page-writeback.c, line 870 mm/page-writeback.c, line 1098 mm/page-writeback.c, line 1242 mm/page-writeback.c, line 1258 mm/page-writeback.c, line 1287 mm/shmem.c, line 202 mm/shmem.c, line 1516 mm/swap.c, line 541 mm/swap_state.c, line 35 mm/swap_state.c, line 45 mm/swapfile.c, line 60 mm/swapfile.c, line 68 mm/swapfile.c, line 80 mm/swapfile.c, line 1191 mm/swapfile.c, line 1200 mm/swapfile.c, line 1202 mm/truncate.c, line 76 mm/vmscan.c, line 259 mm/vmscan.c, line 265 mm/vmscan.c, line 351