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Message-ID: <20220717024615.2106835-33-Liam.Howlett@oracle.com> Date: Sun, 17 Jul 2022 02:46:48 +0000 From: Liam Howlett <liam.howlett@...cle.com> To: "maple-tree@...ts.infradead.org" <maple-tree@...ts.infradead.org>, "linux-mm@...ck.org" <linux-mm@...ck.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Yu Zhao <yuzhao@...gle.com>, Hugh Dickins <hughd@...gle.com> Subject: [PATCH v11 32/69] parisc: remove mmap linked list from cache handling From: "Matthew Wilcox (Oracle)" <willy@...radead.org> Use the VMA iterator instead. Link: https://lkml.kernel.org/r/20220504011345.662299-17-Liam.Howlett@oracle.com Link: https://lkml.kernel.org/r/20220621204632.3370049-33-Liam.Howlett@oracle.com Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org> Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com> Acked-by: Vlastimil Babka <vbabka@...e.cz> Cc: Catalin Marinas <catalin.marinas@....com> Cc: David Howells <dhowells@...hat.com> Cc: SeongJae Park <sj@...nel.org> Cc: Will Deacon <will@...nel.org> Cc: Davidlohr Bueso <dave@...olabs.net> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org> --- arch/parisc/kernel/cache.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index c8a11fcecf4c..3c8679e3ef10 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -660,15 +660,20 @@ 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 @@ -688,7 +693,7 @@ 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); } -- 2.35.1
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