Extern or forward variable declaration include/linux/buffer_head.h, line 47 [usage...] include/linux/fs.h, line 524 [usage...] include/linux/mm_types.h, line 23 [usage...] include/linux/pagevec.h, line 15 [usage...] include/linux/swap.h, line 116 [usage...] Structure include/linux/fs.h, line 634 [usage...] Local variable drivers/rtc/rtc-cmos.c, line 594 [usage...] fs/jfs/jfs_logmgr.c, line 213 [usage...] Class, struct, or union member drivers/acpi/acpica/acobject.h, line 406 [usage...]