]>
git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - include/linux/vmacache.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_VMACACHE_H
3 #define __LINUX_VMACACHE_H
5 #include <linux/sched.h>
9 * Hash based on the page number. Provides a good hit rate for
10 * workloads with good locality and those with random accesses as well.
12 #define VMACACHE_HASH(addr) ((addr >> PAGE_SHIFT) & VMACACHE_MASK)
14 static inline void vmacache_flush(struct task_struct
*tsk
)
16 memset(tsk
->vmacache
.vmas
, 0, sizeof(tsk
->vmacache
.vmas
));
19 extern void vmacache_update(unsigned long addr
, struct vm_area_struct
*newvma
);
20 extern struct vm_area_struct
*vmacache_find(struct mm_struct
*mm
,
24 extern struct vm_area_struct
*vmacache_find_exact(struct mm_struct
*mm
,
29 static inline void vmacache_invalidate(struct mm_struct
*mm
)
31 mm
->vmacache_seqnum
++;
34 #endif /* __LINUX_VMACACHE_H */