Extern or forward variable declaration at include/linux/fs.h, line 50 References: fs/affs/affs.h, line 166 fs/affs/namei.c, line 565 fs/befs/linuxvfs.c, line 97 fs/btrfs/export.c, line 299 fs/ceph/export.c, line 543 fs/ceph/super.h, line 1113 fs/cifs/export.c, line 56 fs/efs/super.c, line 124 fs/exportfs/expfs.c, line 30 fs/exportfs/expfs.c, line 388 fs/exportfs/expfs.c, line 424 fs/ext2/super.c, line 406 fs/ext4/super.c, line 1429 fs/f2fs/super.c, line 2274 fs/fat/fat.h, line 457 fs/fat/fat.h, line 458 fs/fuse/inode.c, line 803 fs/gfs2/export.c, line 187 fs/gfs2/super.h, line 51 fs/isofs/export.c, line 188 fs/isofs/isofs.h, line 202 fs/jffs2/super.c, line 151 fs/jfs/super.c, line 44 fs/jfs/super.c, line 904 fs/kernfs/mount.c, line 122 fs/nfs/export.c, line 169 fs/nfs/internal.h, line 15 fs/nfsd/vfs.c, line 313 fs/nilfs2/namei.c, line 564 fs/ntfs/namei.c, line 386 fs/ocfs2/export.c, line 280 fs/orangefs/super.c, line 388 fs/overlayfs/export.c, line 842 fs/overlayfs/overlayfs.h, line 432 fs/reiserfs/super.c, line 862 fs/squashfs/export.c, line 146 fs/udf/namei.c, line 1316 fs/udf/udfdecl.h, line 87 fs/ufs/super.c, line 140 include/linux/fs.h, line 50 include/linux/fs.h, line 1416 mm/shmem.c, line 3346