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>
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);