GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

parisc: remove mmap linked list from cache handling

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

9
arch/parisc/kernel/cache.c
View file

@ -657,15 +657,20 @@ static inline unsigned long mm_total_size(struct mm_struct *mm)
{ {
struct vm_area_struct *vma; struct vm_area_struct *vma;
unsigned long usize = 0; 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; usize += vma->vm_end - vma->vm_start;
}
return usize; return usize;
} }
void flush_cache_mm(struct mm_struct *mm) void flush_cache_mm(struct mm_struct *mm)
{ {
struct vm_area_struct *vma; struct vm_area_struct *vma;
VMA_ITERATOR(vmi, mm, 0);
/* /*
* Flushing the whole cache on each cpu takes forever on * Flushing the whole cache on each cpu takes forever on
@ -685,7 +690,7 @@ void flush_cache_mm(struct mm_struct *mm)
} }
/* Flush 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); flush_cache_pages(vma, vma->vm_start, vma->vm_end);
} }