linux-kernel - [PATCH 5/7] staging:lustre: simplify libcfs_psdev

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Message-Id: <1452022519-6716-6-git-send-email-jsimmons@infradead.org>
Date:	Tue,  5 Jan 2016 14:35:17 -0500
From:	James Simmons <jsimmons@...radead.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	devel@...verdev.osuosl.org, Oleg Drokin <oleg.drokin@...el.com>,
	Andreas Dilger <andreas.dilger@...el.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	lustre-devel@...ts.lustre.org,
	Parinay Kondekar <parinay.kondekar@...gate.com>,
	James Simmons <uja.ornl@...oo.com>
Subject: [PATCH 5/7] staging:lustre: simplify libcfs_psdev_[open|release]

From: Parinay Kondekar <parinay.kondekar@...gate.com>

With struct libcfs_device_userstate gone we can move
the remaining code of libcfs_psdev_ops.p_[open|close]
into the libcfs_psdev_[open|release] functions directly.

Signed-off-by: Parinay Kondekar <parinay.kondekar@...gate.com>
Signed-off-by: James Simmons <uja.ornl@...oo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844
Reviewed-on: http://review.whamcloud.com/17492
Reviewed-by: Andreas Dilger <andreas.dilger@...el.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@...el.com>
Reviewed-by: John L. Hammond <john.hammond@...el.com>
Reviewed-by: Oleg Drokin <oleg.drokin@...el.com>
---
 .../staging/lustre/include/linux/libcfs/libcfs.h   |    2 --
 .../lustre/lustre/libcfs/linux/linux-module.c      |   20 ++++++--------------
 drivers/staging/lustre/lustre/libcfs/module.c      |   16 ----------------
 3 files changed, 6 insertions(+), 32 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
index 0d8a91e..06bb676 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
@@ -73,8 +73,6 @@ struct cfs_psdev_file {
 };
 
 struct cfs_psdev_ops {
-	int (*p_open)(unsigned long, void *);
-	int (*p_close)(unsigned long, void *);
 	int (*p_read)(struct cfs_psdev_file *, char *, unsigned long);
 	int (*p_write)(struct cfs_psdev_file *, char *, unsigned long);
 	int (*p_ioctl)(struct cfs_psdev_file *, unsigned long, void *);
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
index 33f6036..64f0fbf 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c
@@ -98,30 +98,22 @@ int libcfs_ioctl_popdata(void *arg, void *data, int size)
 static int
 libcfs_psdev_open(struct inode *inode, struct file *file)
 {
-	int    rc = 0;
-
 	if (!inode)
 		return -EINVAL;
-	if (libcfs_psdev_ops.p_open != NULL)
-		rc = libcfs_psdev_ops.p_open(0, NULL);
-	else
-		return -EPERM;
-	return rc;
+
+	try_module_get(THIS_MODULE);
+	return 0;
 }
 
 /* called when closing /dev/device */
 static int
 libcfs_psdev_release(struct inode *inode, struct file *file)
 {
-	int    rc = 0;
-
 	if (!inode)
 		return -EINVAL;
-	if (libcfs_psdev_ops.p_close != NULL)
-		rc = libcfs_psdev_ops.p_close(0, NULL);
-	else
-		rc = -EPERM;
-	return rc;
+
+	module_put(THIS_MODULE);
+	return 0;
 }
 
 static long libcfs_ioctl(struct file *file,
diff --git a/drivers/staging/lustre/lustre/libcfs/module.c b/drivers/staging/lustre/lustre/libcfs/module.c
index 80d2333..8a8a533 100644
--- a/drivers/staging/lustre/lustre/libcfs/module.c
+++ b/drivers/staging/lustre/lustre/libcfs/module.c
@@ -68,20 +68,6 @@ MODULE_LICENSE("GPL");
 
 static struct dentry *lnet_debugfs_root;
 
-/* called when opening /dev/device */
-static int libcfs_psdev_open(unsigned long flags, void *args)
-{
-	try_module_get(THIS_MODULE);
-	return 0;
-}
-
-/* called when closing /dev/device */
-static int libcfs_psdev_release(unsigned long flags, void *args)
-{
-	module_put(THIS_MODULE);
-	return 0;
-}
-
 static DECLARE_RWSEM(ioctl_list_sem);
 static LIST_HEAD(ioctl_list);
 
@@ -180,8 +166,6 @@ out:
 }
 
 struct cfs_psdev_ops libcfs_psdev_ops = {
-	libcfs_psdev_open,
-	libcfs_psdev_release,
 	NULL,
 	NULL,
 	libcfs_ioctl
-- 
1.7.1

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