mm/page-writeback.c: remove unused variable

Commit 64081362e8ff ("mm/page-writeback.c: fix range_cyclic writeback
vs writepages deadlock") left unused variable, remove it.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: http://lkml.kernel.org/r/20200528033740.17269-1-yuchao0@huawei.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 7326b54..2df6fb1 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2164,7 +2164,6 @@ int write_cache_pages(struct address_space *mapping,
        int error;
        struct pagevec pvec;
        int nr_pages;
-       pgoff_t uninitialized_var(writeback_index);
        pgoff_t index;
        pgoff_t end;            /* Inclusive */
        pgoff_t done_index;
@@ -2173,8 +2172,7 @@ int write_cache_pages(struct address_space *mapping,
 
        pagevec_init(&pvec);
        if (wbc->range_cyclic) {
-               writeback_index = mapping->writeback_index; /* prev offset */
-               index = writeback_index;
+               index = mapping->writeback_index; /* prev offset */
                end = -1;
        } else {
                index = wbc->range_start >> PAGE_SHIFT;