diff options
Diffstat (limited to 'include/asm-um/mmu_context.h')
| -rw-r--r-- | include/asm-um/mmu_context.h | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/include/asm-um/mmu_context.h b/include/asm-um/mmu_context.h index 6686fc524ca1..54f42e8b0105 100644 --- a/include/asm-um/mmu_context.h +++ b/include/asm-um/mmu_context.h @@ -22,16 +22,10 @@ extern void force_flush_all(void); static inline void activate_mm(struct mm_struct *old, struct mm_struct *new) { /* - * This is called by fs/exec.c and fs/aio.c. In the first case, for an - * exec, we don't need to do anything as we're called from userspace - * and thus going to use a new host PID. In the second, we're called - * from a kernel thread, and thus need to go doing the mmap's on the - * host. Since they're very expensive, we want to avoid that as far as - * possible. + * This is called by fs/exec.c and sys_unshare() + * when the new ->mm is used for the first time. */ - if (old != new && (current->flags & PF_BORROWED_MM)) - __switch_mm(&new->context.id); - + __switch_mm(&new->context.id); arch_dup_mmap(old, new); } |