linux-kernel - [PATCH] btrfs: remove unused variable pages

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Date:   Tue, 30 May 2023 10:21:54 -0400
From:   Tom Rix <trix@...hat.com>
To:     clm@...com, josef@...icpanda.com, dsterba@...e.com,
        nathan@...nel.org, ndesaulniers@...gle.com
Cc:     linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev, Tom Rix <trix@...hat.com>
Subject: [PATCH] btrfs: remove unused variable pages_processed

clang with W=1 reports
fs/btrfs/extent_io.c:230:16: error: variable
  'pages_processed' set but not used [-Werror,-Wunused-but-set-variable]
        unsigned long pages_processed = 0;
                      ^
This variable is not used so remove it.

Signed-off-by: Tom Rix <trix@...hat.com>
---
 fs/btrfs/extent_io.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 89e093ae1c33..6919409c1183 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -227,7 +227,6 @@ static void __process_pages_contig(struct address_space *mapping,
 	pgoff_t start_index = start >> PAGE_SHIFT;
 	pgoff_t end_index = end >> PAGE_SHIFT;
 	pgoff_t index = start_index;
-	unsigned long pages_processed = 0;
 	struct folio_batch fbatch;
 	int i;
 
@@ -242,7 +241,6 @@ static void __process_pages_contig(struct address_space *mapping,
 
 			process_one_page(fs_info, &folio->page, locked_page,
 					 page_ops, start, end);
-			pages_processed += folio_nr_pages(folio);
 		}
 		folio_batch_release(&fbatch);
 		cond_resched();
-- 
2.27.0