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authorIngo Molnar <mingo@kernel.org>2017-02-03 11:03:31 +0100
committerIngo Molnar <mingo@kernel.org>2017-03-02 08:42:25 +0100
commit314ff7851fc8ea66cbf48eaa93d8ebfb5ca084a9 (patch)
tree16567343faf3f9e94a56bbf431c1e54414cdbb6d /mm
parent780de9dd2720debc14c501dab4dc80d1f75ad50e (diff)
downloadop-kernel-dev-314ff7851fc8ea66cbf48eaa93d8ebfb5ca084a9.zip
op-kernel-dev-314ff7851fc8ea66cbf48eaa93d8ebfb5ca084a9.tar.gz
mm/vmacache, sched/headers: Introduce 'struct vmacache' and move it from <linux/sched.h> to <linux/mm_types>
The <linux/sched.h> header includes various vmacache related defines, which are arguably misplaced. Move them to mm_types.h and minimize the sched.h impact by putting all task vmacache state into a new 'struct vmacache' structure. No change in functionality. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/nommu.c2
-rw-r--r--mm/vmacache.c10
2 files changed, 6 insertions, 6 deletions
diff --git a/mm/nommu.c b/mm/nommu.c
index fe9f4fa..aae06e8 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -757,7 +757,7 @@ static void delete_vma_from_mm(struct vm_area_struct *vma)
mm->map_count--;
for (i = 0; i < VMACACHE_SIZE; i++) {
/* if the vma is cached, invalidate the entire cache */
- if (curr->vmacache[i] == vma) {
+ if (curr->vmacache.vmas[i] == vma) {
vmacache_invalidate(mm);
break;
}
diff --git a/mm/vmacache.c b/mm/vmacache.c
index 035fdeb..7c233f8 100644
--- a/mm/vmacache.c
+++ b/mm/vmacache.c
@@ -60,7 +60,7 @@ static inline bool vmacache_valid_mm(struct mm_struct *mm)
void vmacache_update(unsigned long addr, struct vm_area_struct *newvma)
{
if (vmacache_valid_mm(newvma->vm_mm))
- current->vmacache[VMACACHE_HASH(addr)] = newvma;
+ current->vmacache.vmas[VMACACHE_HASH(addr)] = newvma;
}
static bool vmacache_valid(struct mm_struct *mm)
@@ -71,12 +71,12 @@ static bool vmacache_valid(struct mm_struct *mm)
return false;
curr = current;
- if (mm->vmacache_seqnum != curr->vmacache_seqnum) {
+ if (mm->vmacache_seqnum != curr->vmacache.seqnum) {
/*
* First attempt will always be invalid, initialize
* the new cache for this task here.
*/
- curr->vmacache_seqnum = mm->vmacache_seqnum;
+ curr->vmacache.seqnum = mm->vmacache_seqnum;
vmacache_flush(curr);
return false;
}
@@ -93,7 +93,7 @@ struct vm_area_struct *vmacache_find(struct mm_struct *mm, unsigned long addr)
return NULL;
for (i = 0; i < VMACACHE_SIZE; i++) {
- struct vm_area_struct *vma = current->vmacache[i];
+ struct vm_area_struct *vma = current->vmacache.vmas[i];
if (!vma)
continue;
@@ -121,7 +121,7 @@ struct vm_area_struct *vmacache_find_exact(struct mm_struct *mm,
return NULL;
for (i = 0; i < VMACACHE_SIZE; i++) {
- struct vm_area_struct *vma = current->vmacache[i];
+ struct vm_area_struct *vma = current->vmacache.vmas[i];
if (vma && vma->vm_start == start && vma->vm_end == end) {
count_vm_vmacache_event(VMACACHE_FIND_HITS);
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