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mm/rmap.c: remove redundant variable cend

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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/[email protected]
Fixes: 369ea8242c ("mm/rmap: update to new mmu_notifier semantic v2")
Signed-off-by: Colin Ian King <[email protected]>
Acked-by: Kirill A. Shutemov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Colin Ian King authored and Linus Torvalds committed 2017-11-15 18:21:04 -08:00
1 parent f3f7c09355
commit cdb07bdea2
1 file changed
+1 -3
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mm/rmap.c
+1 -3
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@@ -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? */