| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Davidlohr Bueso | 615d6e8 | 2014-04-07 15:37:25 -0700 | [diff] [blame] | 2 | #ifndef __LINUX_VMACACHE_H |
| 3 | #define __LINUX_VMACACHE_H |
| 4 | |
| 5 | #include <linux/sched.h> |
| 6 | #include <linux/mm.h> |
| 7 | |
| Davidlohr Bueso | 615d6e8 | 2014-04-07 15:37:25 -0700 | [diff] [blame] | 8 | static inline void vmacache_flush(struct task_struct *tsk) |
| 9 | { |
| Ingo Molnar | 314ff78 | 2017-02-03 11:03:31 +0100 | [diff] [blame] | 10 | memset(tsk->vmacache.vmas, 0, sizeof(tsk->vmacache.vmas)); |
| Davidlohr Bueso | 615d6e8 | 2014-04-07 15:37:25 -0700 | [diff] [blame] | 11 | } |
| 12 | |
| Davidlohr Bueso | 615d6e8 | 2014-04-07 15:37:25 -0700 | [diff] [blame] | 13 | extern void vmacache_update(unsigned long addr, struct vm_area_struct *newvma); |
| 14 | extern struct vm_area_struct *vmacache_find(struct mm_struct *mm, |
| 15 | unsigned long addr); |
| 16 | |
| 17 | #ifndef CONFIG_MMU |
| 18 | extern struct vm_area_struct *vmacache_find_exact(struct mm_struct *mm, |
| 19 | unsigned long start, |
| 20 | unsigned long end); |
| 21 | #endif |
| 22 | |
| 23 | static inline void vmacache_invalidate(struct mm_struct *mm) |
| 24 | { |
| 25 | mm->vmacache_seqnum++; |
| Davidlohr Bueso | 615d6e8 | 2014-04-07 15:37:25 -0700 | [diff] [blame] | 26 | } |
| 27 | |
| 28 | #endif /* __LINUX_VMACACHE_H */ |