diff options
Diffstat (limited to 'arch/um/kernel/skas/mmu.c')
| -rw-r--r-- | arch/um/kernel/skas/mmu.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c index 00957788591b..b5017096028b 100644 --- a/arch/um/kernel/skas/mmu.c +++ b/arch/um/kernel/skas/mmu.c @@ -23,18 +23,21 @@ static_assert(sizeof(struct stub_data) == STUB_DATA_PAGES * UM_KERN_PAGE_SIZE); static spinlock_t mm_list_lock; static struct list_head mm_list; -void enter_turnstile(struct mm_id *mm_id) __acquires(turnstile) +struct mutex *__get_turnstile(struct mm_id *mm_id) { struct mm_context *ctx = container_of(mm_id, struct mm_context, id); - mutex_lock(&ctx->turnstile); + return &ctx->turnstile; } -void exit_turnstile(struct mm_id *mm_id) __releases(turnstile) +void enter_turnstile(struct mm_id *mm_id) { - struct mm_context *ctx = container_of(mm_id, struct mm_context, id); + mutex_lock(__get_turnstile(mm_id)); +} - mutex_unlock(&ctx->turnstile); +void exit_turnstile(struct mm_id *mm_id) +{ + mutex_unlock(__get_turnstile(mm_id)); } int init_new_context(struct task_struct *task, struct mm_struct *mm) |