linux-kernel - [PATCH 5.15 009/189] btrfs: remove unused parameter nr_pages in add_ra_bio

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Message-Id: <20220418121200.727778911@linuxfoundation.org>
Date:   Mon, 18 Apr 2022 14:10:29 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Qu Wenruo <wqu@...e.com>,
        David Sterba <dsterba@...e.com>,
        Nathan Chancellor <nathan@...nel.org>
Subject: [PATCH 5.15 009/189] btrfs: remove unused parameter nr_pages in add_ra_bio_pages()

From: Qu Wenruo <wqu@...e.com>

commit cd9255be6980012ad54f2d4fd3941bc2586e43e5 upstream.

Variable @nr_pages only gets increased but never used.  Remove it.

Signed-off-by: Qu Wenruo <wqu@...e.com>
Signed-off-by: David Sterba <dsterba@...e.com>
Cc: Nathan Chancellor <nathan@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 fs/btrfs/compression.c |    2 --
 1 file changed, 2 deletions(-)

--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -550,7 +550,6 @@ static noinline int add_ra_bio_pages(str
 	u64 isize = i_size_read(inode);
 	int ret;
 	struct page *page;
-	unsigned long nr_pages = 0;
 	struct extent_map *em;
 	struct address_space *mapping = inode->i_mapping;
 	struct extent_map_tree *em_tree;
@@ -646,7 +645,6 @@ static noinline int add_ra_bio_pages(str
 				   PAGE_SIZE, 0);
 
 		if (ret == PAGE_SIZE) {
-			nr_pages++;
 			put_page(page);
 		} else {
 			unlock_extent(tree, last_offset, end);