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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2022-02-17 11:24:01 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2022-02-22 22:25:01 +0100 |
| commit | 2bb0529c0bc0698f3baf3e88ffd61a18eef252a7 (patch) | |
| tree | 6d14fd0972b9bd98fc5fd450839add3743bb49fb /arch/ia64 | |
| parent | fork: Duplicate task_struct before stack allocation (diff) | |
| download | linux-2bb0529c0bc0698f3baf3e88ffd61a18eef252a7.tar.xz linux-2bb0529c0bc0698f3baf3e88ffd61a18eef252a7.zip | |
fork, IA64: Provide alloc_thread_stack_node() for IA64
Provide a generic alloc_thread_stack_node() for IA64 and
CONFIG_ARCH_THREAD_STACK_ALLOCATOR which returns stack pointer and sets
task_struct::stack so it behaves exactly like the other implementations.
Rename IA64's alloc_thread_stack_node() and add the generic version to the
fork code so it is in one place _and_ to drastically lower the chances of
fat fingering the IA64 code. Do the same for free_thread_stack().
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/20220217102406.3697941-4-bigeasy@linutronix.de
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/include/asm/thread_info.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h index 51d20cb37706..1684716f0820 100644 --- a/arch/ia64/include/asm/thread_info.h +++ b/arch/ia64/include/asm/thread_info.h @@ -55,15 +55,15 @@ struct thread_info { #ifndef ASM_OFFSETS_C /* how to get the thread information struct from C */ #define current_thread_info() ((struct thread_info *) ((char *) current + IA64_TASK_SIZE)) -#define alloc_thread_stack_node(tsk, node) \ +#define arch_alloc_thread_stack_node(tsk, node) \ ((unsigned long *) ((char *) (tsk) + IA64_TASK_SIZE)) #define task_thread_info(tsk) ((struct thread_info *) ((char *) (tsk) + IA64_TASK_SIZE)) #else #define current_thread_info() ((struct thread_info *) 0) -#define alloc_thread_stack_node(tsk, node) ((unsigned long *) 0) +#define arch_alloc_thread_stack_node(tsk, node) ((unsigned long *) 0) #define task_thread_info(tsk) ((struct thread_info *) 0) #endif -#define free_thread_stack(tsk) /* nothing */ +#define arch_free_thread_stack(tsk) /* nothing */ #define task_stack_page(tsk) ((void *)(tsk)) #define __HAVE_THREAD_FUNCTIONS |