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authorYueHaibing <yuehaibing@huawei.com>2019-09-24 01:34:22 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-09-25 01:54:08 +0300
commit1f18b296699c83d858ca8ebb8b77dbc641d87cae (patch)
treefac9a71aea09ea43fb1a8cd2f6d6d589effe9a61 /mm/rmap.c
parentdbf7684e29d171180346b25d2a124c2a0adf563e (diff)
downloadlinux-1f18b296699c83d858ca8ebb8b77dbc641d87cae.tar.xz
mm/rmap.c: remove set but not used variable 'cstart'
Fixes gcc '-Wunused-but-set-variable' warning: mm/rmap.c: In function page_mkclean_one: mm/rmap.c:906:17: warning: variable cstart set but not used [-Wunused-but-set-variable] It is not used any more since commit cdb07bdea28e ("mm/rmap.c: remove redundant variable cend") Link: http://lkml.kernel.org/r/20190724141453.38536-1-yuehaibing@huawei.com Signed-off-by: YueHaibing <yuehaibing@huawei.com> Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/rmap.c')
-rw-r--r--mm/rmap.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index 003377e24232..31352bba197d 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -903,10 +903,9 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma,
mmu_notifier_invalidate_range_start(&range);
while (page_vma_mapped_walk(&pvmw)) {
- unsigned long cstart;
int ret = 0;
- cstart = address = pvmw.address;
+ address = pvmw.address;
if (pvmw.pte) {
pte_t entry;
pte_t *pte = pvmw.pte;
@@ -933,7 +932,6 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma,
entry = pmd_wrprotect(entry);
entry = pmd_mkclean(entry);
set_pmd_at(vma->vm_mm, address, pmd, entry);
- cstart &= PMD_MASK;
ret = 1;
#else
/* unexpected pmd-mapped page? */