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parisc: remove mmap linked list from cache handling 

Use the VMA iterator instead.

Link: https://lkml.kernel.org/r/20220906194824.2110408-33-Liam.Howlett@oracle.com
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Tested-by: Yu Zhao <yuzhao@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: SeongJae Park <sj@kernel.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-09-06 19:48:53 +00:00 committed by Andrew Morton
parent ef770d180e
commit 70fa203165
1 changed files with 7 additions and 2 deletions
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9
arch/parisc/kernel/cache.c
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@ -657,15 +657,20 @@ static inline unsigned long mm_total_size(struct mm_struct *mm)
{
struct vm_area_struct *vma;
unsigned long usize = 0;
VMA_ITERATOR(vmi, mm, 0);
for (vma = mm->mmap; vma && usize < parisc_cache_flush_threshold; vma = vma->vm_next)
for_each_vma(vmi, vma) {
if (usize >= parisc_cache_flush_threshold)
break;
usize += vma->vm_end - vma->vm_start;
}
return usize;
}
void flush_cache_mm(struct mm_struct *mm)
{
struct vm_area_struct *vma;
VMA_ITERATOR(vmi, mm, 0);
/*
* Flushing the whole cache on each cpu takes forever on
@ -685,7 +690,7 @@ void flush_cache_mm(struct mm_struct *mm)
}
/* Flush mm */
for (vma = mm->mmap; vma; vma = vma->vm_next)
for_each_vma(vmi, vma)
flush_cache_pages(vma, vma->vm_start, vma->vm_end);
}