diff options
| author | Helge Deller <deller@gmx.de> | 2021-10-15 10:41:03 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2021-11-01 07:35:59 +0100 |
| commit | 2214c0e77259b420402e279e9ab4277ef320d371 (patch) | |
| tree | 2533ae4177d0ac79d41446b273e90243d30bd3e5 /arch/parisc/kernel/irq.c | |
| parent | bc294838cc3443a2fbec58f8936ad4bd0a0b3055 (diff) | |
| download | linux-2214c0e77259b420402e279e9ab4277ef320d371.tar.bz2 | |
parisc: Move thread_info into task struct
This implements the CONFIG_THREAD_INFO_IN_TASK option.
With this change:
- before thread_info was part of the stack and located at the beginning of the stack
- now the thread_info struct is moved and located inside the task_struct structure
- the stack is allocated and handled like the major other platforms
- drop the cpu field of thread_info and use instead the one in task_struct
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Diffstat (limited to 'arch/parisc/kernel/irq.c')
| -rw-r--r-- | arch/parisc/kernel/irq.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c index 0d46b19dc4d3..eb18e16362f6 100644 --- a/arch/parisc/kernel/irq.c +++ b/arch/parisc/kernel/irq.c @@ -15,6 +15,7 @@ #include <linux/kernel_stat.h> #include <linux/seq_file.h> #include <linux/types.h> +#include <linux/sched/task_stack.h> #include <asm/io.h> #include <asm/softirq_stack.h> @@ -399,8 +400,7 @@ static inline void stack_overflow_check(struct pt_regs *regs) #ifdef CONFIG_DEBUG_STACKOVERFLOW #define STACK_MARGIN (256*6) - /* Our stack starts directly behind the thread_info struct. */ - unsigned long stack_start = (unsigned long) current_thread_info(); + unsigned long stack_start = (unsigned long) task_stack_page(current); unsigned long sp = regs->gr[30]; unsigned long stack_usage; unsigned int *last_usage; @@ -476,7 +476,7 @@ static void execute_on_irq_stack(void *func, unsigned long param1) union_ptr = &per_cpu(irq_stack_union, smp_processor_id()); irq_stack = (unsigned long) &union_ptr->stack; irq_stack = ALIGN(irq_stack + sizeof(irq_stack_union.slock), - 64); /* align for stack frame usage */ + FRAME_ALIGN); /* align for stack frame usage */ /* We may be called recursive. If we are already using the irq stack, * just continue to use it. Use spinlocks to serialize |