linux-kernel - [PATCH] nbd: some trivial improvements

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1312794004-22047-1-git-send-email-amwang@redhat.com>
Date:	Mon,  8 Aug 2011 17:00:04 +0800
From:	Amerigo Wang <amwang@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, Greg Kroah-Hartman <gregkh@...e.de>,
	Paul Clements <Paul.Clements@...eleye.com>,
	WANG Cong <amwang@...hat.com>, Jiri Kosina <trivial@...nel.org>
Subject: [PATCH] nbd: some trivial improvements

This patch 1) uses task_pid_nr(current) to get the pid of current process,
 2) replaces sysfs_create_file() with device_create_file(), 3) lower
the loglevel of an error message.

Cc: Greg Kroah-Hartman <gregkh@...e.de>
Cc: Paul Clements <Paul.Clements@...eleye.com>
Signed-off-by: WANG Cong <amwang@...hat.com>

---
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index f533f33..07cad4b 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -405,10 +405,10 @@ static int nbd_do_it(struct nbd_device *lo)
 
 	BUG_ON(lo->magic != LO_MAGIC);
 
-	lo->pid = current->pid;
-	ret = sysfs_create_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr);
+	lo->pid = task_pid_nr(current);
+	ret = device_create_file(disk_to_dev(lo->disk), &pid_attr);
 	if (ret) {
-		printk(KERN_ERR "nbd: sysfs_create_file failed!");
+		printk(KERN_ERR "nbd: device_create_file failed!");
 		lo->pid = 0;
 		return ret;
 	}
@@ -416,7 +416,7 @@ static int nbd_do_it(struct nbd_device *lo)
 	while ((req = nbd_read_stat(lo)) != NULL)
 		nbd_end_request(req);
 
-	sysfs_remove_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr);
+	device_remove_file(disk_to_dev(lo->disk), &pid_attr);
 	lo->pid = 0;
 	return 0;
 }
@@ -745,7 +745,7 @@ static int __init nbd_init(void)
 	BUILD_BUG_ON(sizeof(struct nbd_request) != 28);
 
 	if (max_part < 0) {
-		printk(KERN_CRIT "nbd: max_part must be >= 0\n");
+		printk(KERN_ERR "nbd: max_part must be >= 0\n");
 		return -EINVAL;
 	}
 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/