• David Howells's avatar
    [PATCH] thread information block · 9b10610a
    David Howells authored
    syscall latency improvement
    
     * There's now an asm/thread_info.h header file with the basic structure
       def and asm offsets in it.
    
     * There's now a linux/thread_info.h header file which includes the asm
       version and wraps some bitops calls to make convenience functions for
       accessing the low-level flags. 
    
     * The task_struct has had some fields removed (and some flags), and has
       acquired a pointer to the thread_info struct.
    
     * task_struct's are now allocated on slabs in kernel/fork.c, whereas
       thread_info structs are allocated at the bottom of the stack pages.
    
     * Some more convenience functions are provided at the end of linux/sched.h to
       access flags in other tasks (these are here because they need to access the
       task_struct).
    9b10610a
thread_info.h 1.7 KB