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authorColin Ian King <colin.king@canonical.com>2017-11-15 17:35:47 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 18:21:04 -0800
commitcdb07bdea28ebf1286a979501620745680596365 (patch)
tree421714cad245f4bc8b9b6b23b2b07dada2285f89 /mm/rmap.c
parentf3f7c09355784b02e49853dd1403d0e2d4f991c6 (diff)
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mm/rmap.c: remove redundant variable cend
Variable cend is set but never read, hence it is redundant and can be removed. Cleans up clang build warning: Value stored to 'cend' is never read Link: http://lkml.kernel.org/r/20171011174942.1372-1-colin.king@canonical.com Fixes: 369ea8242c0f ("mm/rmap: update to new mmu_notifier semantic v2") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.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 7dfc0975de4b..6b5a0f219ac0 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -899,7 +899,7 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma,
mmu_notifier_invalidate_range_start(vma->vm_mm, start, end);
while (page_vma_mapped_walk(&pvmw)) {
- unsigned long cstart, cend;
+ unsigned long cstart;
int ret = 0;
cstart = address = pvmw.address;
@@ -915,7 +915,6 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma,
entry = pte_wrprotect(entry);
entry = pte_mkclean(entry);
set_pte_at(vma->vm_mm, address, pte, entry);
- cend = cstart + PAGE_SIZE;
ret = 1;
} else {
#ifdef CONFIG_TRANSPARENT_HUGE_PAGECACHE
@@ -931,7 +930,6 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma,
entry = pmd_mkclean(entry);
set_pmd_at(vma->vm_mm, address, pmd, entry);
cstart &= PMD_MASK;
- cend = cstart + PMD_SIZE;
ret = 1;
#else
/* unexpected pmd-mapped page? */