taglinefilesource code
osd1234include/linux/ext2_fs.h} osd1;        /* OS dependent 1 */
osd1265include/linux/ext2_fs.h#define i_reserved1  osd1.linux1.l_i_reserved1
osd1272include/linux/ext2_fs.h#define i_translator  osd1.hurd1.h_i_translator
osd1281include/linux/ext2_fs.h#define i_reserved1  osd1.masix1.m_i_reserved1