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https://github.com/torvalds/linux.git
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Andy Lutomirski
c65eacbe29
If an arch opts in by setting CONFIG_THREAD_INFO_IN_TASK_STRUCT, then thread_info is defined as a single 'u32 flags' and is the first entry of task_struct. thread_info::task is removed (it serves no purpose if thread_info is embedded in task_struct), and thread_info::cpu gets its own slot in task_struct. This is heavily based on a patch written by Linus. Originally-from: Linus Torvalds <[email protected]> Signed-off-by: Andy Lutomirski <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Brian Gerst <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Jann Horn <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/a0898196f0476195ca02713691a5037a14f2aac5.1473801993.git.luto@kernel.org Signed-off-by: Ingo Molnar <[email protected]>
30 lines
770 B
C
30 lines
770 B
C
#include <linux/init_task.h>
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#include <linux/export.h>
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#include <linux/mqueue.h>
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#include <linux/sched.h>
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#include <linux/sched/sysctl.h>
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#include <linux/sched/rt.h>
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#include <linux/init.h>
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#include <linux/fs.h>
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#include <linux/mm.h>
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#include <asm/pgtable.h>
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#include <asm/uaccess.h>
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static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
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static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
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/* Initial task structure */
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struct task_struct init_task = INIT_TASK(init_task);
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EXPORT_SYMBOL(init_task);
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/*
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* Initial thread structure. Alignment of this is handled by a special
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* linker map entry.
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*/
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union thread_union init_thread_union __init_task_data = {
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#ifndef CONFIG_THREAD_INFO_IN_TASK
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INIT_THREAD_INFO(init_task)
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#endif
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};
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