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From: Anton Suvorov <warwish@yandex-team.ru>
To: linux-kernel@vger.kernel.org
Cc: warwish@yandex-team.ru, linux-fsdevel@vger.kernel.org,
	dmtrmonakhov@yandex-team.ru, linux-block@vger.kernel.org,
	viro@zeniv.linux.org.uk
Subject: [PATCH 09/10] security: reduce stack footprint in loadpin_read_file()
Date: Wed,  2 Jun 2021 18:29:02 +0300	[thread overview]
Message-ID: <20210602152903.910190-10-warwish@yandex-team.ru> (raw)
In-Reply-To: <20210602152903.910190-1-warwish@yandex-team.ru>

Stack usage reduced (measured with allyesconfig):

./security/loadpin/loadpin.c    loadpin_read_file       200     56      -144

Signed-off-by: Anton Suvorov <warwish@yandex-team.ru>
---
 security/loadpin/loadpin.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/security/loadpin/loadpin.c b/security/loadpin/loadpin.c
index b12f7d986b1e..ad4e6756c038 100644
--- a/security/loadpin/loadpin.c
+++ b/security/loadpin/loadpin.c
@@ -78,11 +78,8 @@ static void check_pinning_enforcement(struct super_block *mnt_sb)
 	 * device, allow sysctl to change modes for testing.
 	 */
 	if (mnt_sb->s_bdev) {
-		char bdev[BDEVNAME_SIZE];
-
 		ro = bdev_read_only(mnt_sb->s_bdev);
-		bdevname(mnt_sb->s_bdev, bdev);
-		pr_info("%s (%u:%u): %s\n", bdev,
+		pr_info("%pg (%u:%u): %s\n", mnt_sb->s_bdev,
 			MAJOR(mnt_sb->s_bdev->bd_dev),
 			MINOR(mnt_sb->s_bdev->bd_dev),
 			ro ? "read-only" : "writable");
-- 
2.25.1


  parent reply	other threads:[~2021-06-02 15:31 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-02 15:28 [PATCH 00/10] reduce stack footprint printing bdev names Anton Suvorov
2021-06-02 15:28 ` [PATCH 01/10] drbd: reduce stack footprint in drbd_report_io_error() Anton Suvorov
2021-06-02 15:28 ` [PATCH 02/10] dax: reduce stack footprint dealing with block device names Anton Suvorov
2021-06-02 17:18   ` Matthew Wilcox
2021-06-22 17:44     ` [PATCH v2 00/10] reduce stack footprint printing bdev names Anton Suvorov
2021-06-22 17:44       ` [PATCH v2 01/10] drbd: reduce stack footprint in drbd_report_io_error() Anton Suvorov
2021-06-22 17:44       ` [PATCH v2 02/10] dax: reduce stack footprint dealing with block device names Anton Suvorov
2021-06-22 17:44       ` [PATCH v2 03/10] raid-md: " Anton Suvorov
2021-06-23  8:26         ` Guoqing Jiang
2021-06-22 17:44       ` [PATCH v2 04/10] dm: " Anton Suvorov
2021-06-22 17:44       ` [PATCH v2 05/10] block: " Anton Suvorov
2021-06-23  7:45         ` Christoph Hellwig
2021-06-22 17:44       ` [PATCH v2 06/10] target: reduce stack footprint in iblock_show_configfs_dev_params() Anton Suvorov
2021-06-22 17:44       ` [PATCH v2 07/10] vfs: reduce stack footprint in __blkdev_put() Anton Suvorov
2021-06-22 17:44       ` [PATCH v2 08/10] ext4: reduce stack footprint in ext4_end_bio() Anton Suvorov
2021-06-22 17:44       ` [PATCH v2 09/10] security: reduce stack footprint in loadpin_read_file() Anton Suvorov
2021-06-22 17:45     ` [PATCH v2 10/10] block: remove unused symbol bio_devname() Anton Suvorov
2021-06-02 15:28 ` [PATCH 03/10] raid-md: reduce stack footprint dealing with block device names Anton Suvorov
2021-06-02 15:28 ` [PATCH 04/10] dm: " Anton Suvorov
2021-06-23 20:20   ` Mike Snitzer
2021-06-02 15:28 ` [PATCH 05/10] block: " Anton Suvorov
2021-06-02 15:28 ` [PATCH 06/10] target: reduce stack footprint in iblock_show_configfs_dev_params() Anton Suvorov
2021-06-02 15:29 ` [PATCH 07/10] vfs: reduce stack footprint in __blkdev_put() Anton Suvorov
2021-06-02 15:29 ` [PATCH 08/10] ext4: reduce stack footprint in ext4_end_bio() Anton Suvorov
2021-06-02 15:29 ` Anton Suvorov [this message]
2021-06-02 15:29 ` [PATCH 10/10] block: remove unused symbol bio_devname() Anton Suvorov

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