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authorYueHaibing <[email protected]>2019-09-23 15:34:22 -0700
committerLinus Torvalds <[email protected]>2019-09-24 15:54:08 -0700
commit1f18b296699c83d858ca8ebb8b77dbc641d87cae (patch)
treefac9a71aea09ea43fb1a8cd2f6d6d589effe9a61
parentdbf7684e29d171180346b25d2a124c2a0adf563e (diff)
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/[email protected] Signed-off-by: YueHaibing <[email protected]> Reported-by: Hulk Robot <[email protected]> Reviewed-by: Mike Kravetz <[email protected]> Reviewed-by: Kirill Tkhai <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
-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? */