linux-kernel - [PATCH 07/10] vfs: reduce stack footprint in __blkdev

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Message-Id: <20210602152903.910190-8-warwish@yandex-team.ru>
Date:   Wed,  2 Jun 2021 18:29:00 +0300
From:   Anton Suvorov <warwish@...dex-team.ru>
To:     linux-kernel@...r.kernel.org
Cc:     warwish@...dex-team.ru, linux-fsdevel@...r.kernel.org,
        dmtrmonakhov@...dex-team.ru, linux-block@...r.kernel.org,
        viro@...iv.linux.org.uk
Subject: [PATCH 07/10] vfs: reduce stack footprint in __blkdev_put()

Stack usage reduced (measured with allyesconfig):

./fs/block_dev.c        __blkdev_put    224     80      -144

Signed-off-by: Anton Suvorov <warwish@...dex-team.ru>
---
 fs/block_dev.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/block_dev.c b/fs/block_dev.c
index 6cc4d4cfe0c2..cef3a4aa46dc 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -64,10 +64,8 @@ static void bdev_write_inode(struct block_device *bdev)
 		spin_unlock(&inode->i_lock);
 		ret = write_inode_now(inode, true);
 		if (ret) {
-			char name[BDEVNAME_SIZE];
-			pr_warn_ratelimited("VFS: Dirty inode writeback failed "
-					    "for block device %s (err=%d).\n",
-					    bdevname(bdev, name), ret);
+			pr_warn_ratelimited("VFS: Dirty inode writeback failed for block device %pg (err=%d).\n",
+					    bdev, ret);
 		}
 		spin_lock(&inode->i_lock);
 	}
-- 
2.25.1