switch simple cases of fget_light to fdget

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 41 insertions, 43 deletions

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 5db1b69500fd..6d255e535d03 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -944,7 +944,7 @@ SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr,
 		size_t, msg_len, unsigned int, msg_prio,
 		const struct timespec __user *, u_abs_timeout)
 {
-	struct file *filp;
+	struct fd f;
 	struct inode *inode;
 	struct ext_wait_queue wait;
 	struct ext_wait_queue *receiver;
@@ -953,7 +953,7 @@ SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr,
 	ktime_t expires, *timeout = NULL;
 	struct timespec ts;
 	struct posix_msg_tree_node *new_leaf = NULL;
-	int ret = 0, fput_needed;
+	int ret = 0;
 
 	if (u_abs_timeout) {
 		int res = prepare_timeout(u_abs_timeout, &expires, &ts);
@@ -967,21 +967,21 @@ SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr,
 
 	audit_mq_sendrecv(mqdes, msg_len, msg_prio, timeout ? &ts : NULL);
 
-	filp = fget_light(mqdes, &fput_needed);
-	if (unlikely(!filp)) {
+	f = fdget(mqdes);
+	if (unlikely(!f.file)) {
 		ret = -EBADF;
 		goto out;
 	}
 
-	inode = filp->f_path.dentry->d_inode;
-	if (unlikely(filp->f_op != &mqueue_file_operations)) {
+	inode = f.file->f_path.dentry->d_inode;
+	if (unlikely(f.file->f_op != &mqueue_file_operations)) {
 		ret = -EBADF;
 		goto out_fput;
 	}
 	info = MQUEUE_I(inode);
-	audit_inode(NULL, filp->f_path.dentry);
+	audit_inode(NULL, f.file->f_path.dentry);
 
-	if (unlikely(!(filp->f_mode & FMODE_WRITE))) {
+	if (unlikely(!(f.file->f_mode & FMODE_WRITE))) {
 		ret = -EBADF;
 		goto out_fput;
 	}
@@ -1023,7 +1023,7 @@ SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr,
 	}
 
 	if (info->attr.mq_curmsgs == info->attr.mq_maxmsg) {
-		if (filp->f_flags & O_NONBLOCK) {
+		if (f.file->f_flags & O_NONBLOCK) {
 			ret = -EAGAIN;
 		} else {
 			wait.task = current;
@@ -1056,7 +1056,7 @@ out_free:
 	if (ret)
 		free_msg(msg_ptr);
 out_fput:
-	fput_light(filp, fput_needed);
+	fdput(f);
 out:
 	return ret;
 }
@@ -1067,14 +1067,13 @@ SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr,
 {
 	ssize_t ret;
 	struct msg_msg *msg_ptr;
-	struct file *filp;
+	struct fd f;
 	struct inode *inode;
 	struct mqueue_inode_info *info;
 	struct ext_wait_queue wait;
 	ktime_t expires, *timeout = NULL;
 	struct timespec ts;
 	struct posix_msg_tree_node *new_leaf = NULL;
-	int fput_needed;
 
 	if (u_abs_timeout) {
 		int res = prepare_timeout(u_abs_timeout, &expires, &ts);
@@ -1085,21 +1084,21 @@ SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr,
 
 	audit_mq_sendrecv(mqdes, msg_len, 0, timeout ? &ts : NULL);
 
-	filp = fget_light(mqdes, &fput_needed);
-	if (unlikely(!filp)) {
+	f = fdget(mqdes);
+	if (unlikely(!f.file)) {
 		ret = -EBADF;
 		goto out;
 	}
 
-	inode = filp->f_path.dentry->d_inode;
-	if (unlikely(filp->f_op != &mqueue_file_operations)) {
+	inode = f.file->f_path.dentry->d_inode;
+	if (unlikely(f.file->f_op != &mqueue_file_operations)) {
 		ret = -EBADF;
 		goto out_fput;
 	}
 	info = MQUEUE_I(inode);
-	audit_inode(NULL, filp->f_path.dentry);
+	audit_inode(NULL, f.file->f_path.dentry);
 
-	if (unlikely(!(filp->f_mode & FMODE_READ))) {
+	if (unlikely(!(f.file->f_mode & FMODE_READ))) {
 		ret = -EBADF;
 		goto out_fput;
 	}
@@ -1131,7 +1130,7 @@ SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr,
 	}
 
 	if (info->attr.mq_curmsgs == 0) {
-		if (filp->f_flags & O_NONBLOCK) {
+		if (f.file->f_flags & O_NONBLOCK) {
 			spin_unlock(&info->lock);
 			ret = -EAGAIN;
 		} else {
@@ -1161,7 +1160,7 @@ SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr,
 		free_msg(msg_ptr);
 	}
 out_fput:
-	fput_light(filp, fput_needed);
+	fdput(f);
 out:
 	return ret;
 }
@@ -1174,8 +1173,8 @@ out:
 SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes,
 		const struct sigevent __user *, u_notification)
 {
-	int ret, fput_needed;
-	struct file *filp;
+	int ret;
+	struct fd f;
 	struct sock *sock;
 	struct inode *inode;
 	struct sigevent notification;
@@ -1221,13 +1220,13 @@ SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes,
 			skb_put(nc, NOTIFY_COOKIE_LEN);
 			/* and attach it to the socket */
 retry:
-			filp = fget_light(notification.sigev_signo, &fput_needed);
-			if (!filp) {
+			f = fdget(notification.sigev_signo);
+			if (!f.file) {
 				ret = -EBADF;
 				goto out;
 			}
-			sock = netlink_getsockbyfilp(filp);
-			fput_light(filp, fput_needed);
+			sock = netlink_getsockbyfilp(f.file);
+			fdput(f);
 			if (IS_ERR(sock)) {
 				ret = PTR_ERR(sock);
 				sock = NULL;
@@ -1246,14 +1245,14 @@ retry:
 		}
 	}
 
-	filp = fget_light(mqdes, &fput_needed);
-	if (!filp) {
+	f = fdget(mqdes);
+	if (!f.file) {
 		ret = -EBADF;
 		goto out;
 	}
 
-	inode = filp->f_path.dentry->d_inode;
-	if (unlikely(filp->f_op != &mqueue_file_operations)) {
+	inode = f.file->f_path.dentry->d_inode;
+	if (unlikely(f.file->f_op != &mqueue_file_operations)) {
 		ret = -EBADF;
 		goto out_fput;
 	}
@@ -1293,7 +1292,7 @@ retry:
 	}
 	spin_unlock(&info->lock);
 out_fput:
-	fput_light(filp, fput_needed);
+	fdput(f);
 out:
 	if (sock) {
 		netlink_detachskb(sock, nc);
@@ -1309,8 +1308,7 @@ SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes,
 {
 	int ret;
 	struct mq_attr mqstat, omqstat;
-	int fput_needed;
-	struct file *filp;
+	struct fd f;
 	struct inode *inode;
 	struct mqueue_inode_info *info;
 
@@ -1321,14 +1319,14 @@ SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes,
 			return -EINVAL;
 	}
 
-	filp = fget_light(mqdes, &fput_needed);
-	if (!filp) {
+	f = fdget(mqdes);
+	if (!f.file) {
 		ret = -EBADF;
 		goto out;
 	}
 
-	inode = filp->f_path.dentry->d_inode;
-	if (unlikely(filp->f_op != &mqueue_file_operations)) {
+	inode = f.file->f_path.dentry->d_inode;
+	if (unlikely(f.file->f_op != &mqueue_file_operations)) {
 		ret = -EBADF;
 		goto out_fput;
 	}
@@ -1337,15 +1335,15 @@ SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes,
 	spin_lock(&info->lock);
 
 	omqstat = info->attr;
-	omqstat.mq_flags = filp->f_flags & O_NONBLOCK;
+	omqstat.mq_flags = f.file->f_flags & O_NONBLOCK;
 	if (u_mqstat) {
 		audit_mq_getsetattr(mqdes, &mqstat);
-		spin_lock(&filp->f_lock);
+		spin_lock(&f.file->f_lock);
 		if (mqstat.mq_flags & O_NONBLOCK)
-			filp->f_flags |= O_NONBLOCK;
+			f.file->f_flags |= O_NONBLOCK;
 		else
-			filp->f_flags &= ~O_NONBLOCK;
-		spin_unlock(&filp->f_lock);
+			f.file->f_flags &= ~O_NONBLOCK;
+		spin_unlock(&f.file->f_lock);
 
 		inode->i_atime = inode->i_ctime = CURRENT_TIME;
 	}
@@ -1358,7 +1356,7 @@ SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes,
 		ret = -EFAULT;
 
 out_fput:
-	fput_light(filp, fput_needed);
+	fdput(f);
 out:
 	return ret;
 }