[CIFS] BKL-removal: convert CIFS over to unlocked_ioctl

cifs_ioctl doesn't seem to need the BKL for anything, so convert it over
to use unlocked_ioctl.

Signed-off-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>

fs/cifs/cifsfs.c

@@ -657,7 +657,7 @@ const struct file_operations cifs_file_ops = {
 	.splice_read = generic_file_splice_read,
 	.llseek = cifs_llseek,
 #ifdef CONFIG_CIFS_POSIX
-	.ioctl	= cifs_ioctl,
+	.unlocked_ioctl	= cifs_ioctl,
 #endif /* CONFIG_CIFS_POSIX */
 
 #ifdef CONFIG_CIFS_EXPERIMENTAL
@@ -677,7 +677,7 @@ const struct file_operations cifs_file_direct_ops = {
 	.flush = cifs_flush,
 	.splice_read = generic_file_splice_read,
 #ifdef CONFIG_CIFS_POSIX
-	.ioctl  = cifs_ioctl,
+	.unlocked_ioctl  = cifs_ioctl,
 #endif /* CONFIG_CIFS_POSIX */
 	.llseek = cifs_llseek,
 #ifdef CONFIG_CIFS_EXPERIMENTAL
@@ -697,7 +697,7 @@ const struct file_operations cifs_file_nobrl_ops = {
 	.splice_read = generic_file_splice_read,
 	.llseek = cifs_llseek,
 #ifdef CONFIG_CIFS_POSIX
-	.ioctl	= cifs_ioctl,
+	.unlocked_ioctl	= cifs_ioctl,
 #endif /* CONFIG_CIFS_POSIX */
 
 #ifdef CONFIG_CIFS_EXPERIMENTAL
@@ -716,7 +716,7 @@ const struct file_operations cifs_file_direct_nobrl_ops = {
 	.flush = cifs_flush,
 	.splice_read = generic_file_splice_read,
 #ifdef CONFIG_CIFS_POSIX
-	.ioctl  = cifs_ioctl,
+	.unlocked_ioctl  = cifs_ioctl,
 #endif /* CONFIG_CIFS_POSIX */
 	.llseek = cifs_llseek,
 #ifdef CONFIG_CIFS_EXPERIMENTAL
@@ -731,7 +731,7 @@ const struct file_operations cifs_dir_ops = {
 #ifdef CONFIG_CIFS_EXPERIMENTAL
 	.dir_notify = cifs_dir_notify,
 #endif /* CONFIG_CIFS_EXPERIMENTAL */
-	.ioctl  = cifs_ioctl,
+	.unlocked_ioctl  = cifs_ioctl,
 };
 
 static void

fs/cifs/cifsfs.h

@@ -95,8 +95,7 @@ extern int 	cifs_setxattr(struct dentry *, const char *, const void *,
 			size_t, int);
 extern ssize_t	cifs_getxattr(struct dentry *, const char *, void *, size_t);
 extern ssize_t	cifs_listxattr(struct dentry *, char *, size_t);
-extern int cifs_ioctl(struct inode *inode, struct file *filep,
-		       unsigned int command, unsigned long arg);
+extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
 
 #ifdef CONFIG_CIFS_EXPERIMENTAL
 extern const struct export_operations cifs_export_ops;

fs/cifs/ioctl.c

@@ -30,9 +30,9 @@
 
 #define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2)
 
-int cifs_ioctl(struct inode *inode, struct file *filep,
-		unsigned int command, unsigned long arg)
+long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 {
+	struct inode *inode = filep->f_dentry->d_inode;
 	int rc = -ENOTTY; /* strange error - but the precedent */
 	int xid;
 	struct cifs_sb_info *cifs_sb;