new helper: file_inode(file)

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

8 files changed, 14 insertions, 14 deletions

diff --git a/kernel/acct.c b/kernel/acct.c
index 051e071..0d29813 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -205,7 +205,7 @@ static int acct_on(struct filename *pathname)
 	if (IS_ERR(file))
 		return PTR_ERR(file);
 
-	if (!S_ISREG(file->f_path.dentry->d_inode->i_mode)) {
+	if (!S_ISREG(file_inode(file)->i_mode)) {
 		filp_close(file, NULL);
 		return -EACCES;
 	}
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 4855892..4fe52b3 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2637,7 +2637,7 @@ static struct dentry *cgroup_lookup(struct inode *dir, struct dentry *dentry, un
  */
 static inline struct cftype *__file_cft(struct file *file)
 {
-	if (file->f_dentry->d_inode->i_fop != &cgroup_file_operations)
+	if (file_inode(file)->i_fop != &cgroup_file_operations)
 		return ERR_PTR(-EINVAL);
 	return __d_cft(file->f_dentry);
 }
@@ -3852,7 +3852,7 @@ static int cgroup_write_event_control(struct cgroup *cgrp, struct cftype *cft,
 
 	/* the process need read permission on control file */
 	/* AV: shouldn't we check that it's been opened for read instead? */
-	ret = inode_permission(cfile->f_path.dentry->d_inode, MAY_READ);
+	ret = inode_permission(file_inode(cfile), MAY_READ);
 	if (ret < 0)
 		goto fail;
 
@@ -5441,7 +5441,7 @@ struct cgroup_subsys_state *cgroup_css_from_dir(struct file *f, int id)
 	struct inode *inode;
 	struct cgroup_subsys_state *css;
 
-	inode = f->f_dentry->d_inode;
+	inode = file_inode(f);
 	/* check in cgroup filesystem dir */
 	if (inode->i_op != &cgroup_dir_inode_operations)
 		return ERR_PTR(-EBADF);
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 301079d..3b10655 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -3682,7 +3682,7 @@ unlock:
 
 static int perf_fasync(int fd, struct file *filp, int on)
 {
-	struct inode *inode = filp->f_path.dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	struct perf_event *event = filp->private_data;
 	int retval;
 
diff --git a/kernel/fork.c b/kernel/fork.c
index c535f33..4ff724f 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -413,7 +413,7 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
 		tmp->vm_next = tmp->vm_prev = NULL;
 		file = tmp->vm_file;
 		if (file) {
-			struct inode *inode = file->f_path.dentry->d_inode;
+			struct inode *inode = file_inode(file);
 			struct address_space *mapping = file->f_mapping;
 
 			get_file(file);
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 4bd4faa..397db02 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -76,7 +76,7 @@ static int irq_affinity_list_proc_show(struct seq_file *m, void *v)
 static ssize_t write_irq_affinity(int type, struct file *file,
 		const char __user *buffer, size_t count, loff_t *pos)
 {
-	unsigned int irq = (int)(long)PDE(file->f_path.dentry->d_inode)->data;
+	unsigned int irq = (int)(long)PDE(file_inode(file))->data;
 	cpumask_var_t new_value;
 	int err;
 
diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c
index 78e2ecb..c057104 100644
--- a/kernel/nsproxy.c
+++ b/kernel/nsproxy.c
@@ -251,7 +251,7 @@ SYSCALL_DEFINE2(setns, int, fd, int, nstype)
 		return PTR_ERR(file);
 
 	err = -EINVAL;
-	ei = PROC_I(file->f_dentry->d_inode);
+	ei = PROC_I(file_inode(file));
 	ops = ei->ns_ops;
 	if (nstype && (ops->type != nstype))
 		goto out;
diff --git a/kernel/relay.c b/kernel/relay.c
index e8cd202..01ab081 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -1139,7 +1139,7 @@ static ssize_t relay_file_read_subbufs(struct file *filp, loff_t *ppos,
 	if (!desc->count)
 		return 0;
 
-	mutex_lock(&filp->f_path.dentry->d_inode->i_mutex);
+	mutex_lock(&file_inode(filp)->i_mutex);
 	do {
 		if (!relay_file_read_avail(buf, *ppos))
 			break;
@@ -1159,7 +1159,7 @@ static ssize_t relay_file_read_subbufs(struct file *filp, loff_t *ppos,
 			*ppos = relay_file_read_end_pos(buf, read_start, ret);
 		}
 	} while (desc->count && ret);
-	mutex_unlock(&filp->f_path.dentry->d_inode->i_mutex);
+	mutex_unlock(&file_inode(filp)->i_mutex);
 
 	return desc->written;
 }
diff --git a/kernel/sys.c b/kernel/sys.c
index 265b376..e3932ea 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1792,14 +1792,14 @@ SYSCALL_DEFINE1(umask, int, mask)
 static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
 {
 	struct fd exe;
-	struct dentry *dentry;
+	struct inode *inode;
 	int err;
 
 	exe = fdget(fd);
 	if (!exe.file)
 		return -EBADF;
 
-	dentry = exe.file->f_path.dentry;
+	inode = file_inode(exe.file);
 
 	/*
 	 * Because the original mm->exe_file points to executable file, make
@@ -1807,11 +1807,11 @@ static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
 	 * overall picture.
 	 */
 	err = -EACCES;
-	if (!S_ISREG(dentry->d_inode->i_mode)	||
+	if (!S_ISREG(inode->i_mode)	||
 	    exe.file->f_path.mnt->mnt_flags & MNT_NOEXEC)
 		goto exit;
 
-	err = inode_permission(dentry->d_inode, MAY_EXEC);
+	err = inode_permission(inode, MAY_EXEC);
 	if (err)
 		goto exit;