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| author | Heiko Carstens <hca@linux.ibm.com> | 2024-11-21 12:41:08 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2024-11-24 16:59:42 +0100 |
| commit | 9de3e4bf6cfbcb62e9ec658e3b291cd479018b43 (patch) | |
| tree | 5085db66abf09ee23997292a10f992fb46eafb73 /arch/s390 | |
| parent | 546d7bd47973790073b824d69ee59440337b407b (diff) | |
| download | lwn-9de3e4bf6cfbcb62e9ec658e3b291cd479018b43.tar.gz lwn-9de3e4bf6cfbcb62e9ec658e3b291cd479018b43.zip | |
s390: Add ARCH_HAS_PREEMPT_LAZY support
Just add the required TIF bit for ARCH_HAS_PREEMPT_LAZY support.
Shuffle TIF bits to get TIF_NEED_RESCHED_LAZY next to TIF_NEED_RESCHED.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/Kconfig | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/thread_info.h | 8 |
2 files changed, 6 insertions, 3 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index a45259d4c0a5..b7e1eec7903e 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -87,6 +87,7 @@ config S390 select ARCH_HAS_MEMBARRIER_SYNC_CORE select ARCH_HAS_MEM_ENCRYPT select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS + select ARCH_HAS_PREEMPT_LAZY select ARCH_HAS_PTE_SPECIAL select ARCH_HAS_SCALED_CPUTIME select ARCH_HAS_SET_DIRECT_MAP diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 3802f281eeed..c33f7144d1b9 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -64,11 +64,12 @@ void arch_setup_new_exec(void); #define TIF_NOTIFY_RESUME 0 /* callback before returning to user */ #define TIF_SIGPENDING 1 /* signal pending */ #define TIF_NEED_RESCHED 2 /* rescheduling necessary */ -#define TIF_UPROBE 3 /* breakpointed or single-stepping */ -#define TIF_GUARDED_STORAGE 4 /* load guarded storage control block */ +#define TIF_NEED_RESCHED_LAZY 3 /* lazy rescheduling needed */ +#define TIF_UPROBE 4 /* breakpointed or single-stepping */ #define TIF_PATCH_PENDING 5 /* pending live patching update */ #define TIF_PGSTE 6 /* New mm's will use 4K page tables */ #define TIF_NOTIFY_SIGNAL 7 /* signal notifications exist */ +#define TIF_GUARDED_STORAGE 8 /* load guarded storage control block */ #define TIF_ISOLATE_BP_GUEST 9 /* Run KVM guests with isolated BP */ #define TIF_PER_TRAP 10 /* Need to handle PER trap on exit to usermode */ #define TIF_31BIT 16 /* 32bit process */ @@ -85,11 +86,12 @@ void arch_setup_new_exec(void); #define _TIF_NOTIFY_RESUME BIT(TIF_NOTIFY_RESUME) #define _TIF_SIGPENDING BIT(TIF_SIGPENDING) #define _TIF_NEED_RESCHED BIT(TIF_NEED_RESCHED) +#define _TIF_NEED_RESCHED_LAZY BIT(TIF_NEED_RESCHED_LAZY) #define _TIF_UPROBE BIT(TIF_UPROBE) -#define _TIF_GUARDED_STORAGE BIT(TIF_GUARDED_STORAGE) #define _TIF_PATCH_PENDING BIT(TIF_PATCH_PENDING) #define _TIF_PGSTE BIT(TIF_PGSTE) #define _TIF_NOTIFY_SIGNAL BIT(TIF_NOTIFY_SIGNAL) +#define _TIF_GUARDED_STORAGE BIT(TIF_GUARDED_STORAGE) #define _TIF_ISOLATE_BP_GUEST BIT(TIF_ISOLATE_BP_GUEST) #define _TIF_PER_TRAP BIT(TIF_PER_TRAP) #define _TIF_31BIT BIT(TIF_31BIT) |