linux-kernel - [PATCH v5 03/10] tracefs: Rename and export some tracefs functions

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Message-Id: <1690054625-31939-4-git-send-email-akaher@vmware.com>
Date:   Sun, 23 Jul 2023 01:06:58 +0530
From:   Ajay Kaher <akaher@...are.com>
To:     rostedt@...dmis.org, shuah@...nel.org, mhiramat@...nel.org
Cc:     chinglinyu@...gle.com, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org,
        linux-trace-kernel@...r.kernel.org, lkp@...el.com,
        namit@...are.com, oe-lkp@...ts.linux.dev, akaher@...are.com,
        amakhalov@...are.com, er.ajay.kaher@...il.com,
        srivatsa@...il.mit.edu, tkundu@...are.com, vsirnapalli@...are.com
Subject: [PATCH v5 03/10] tracefs: Rename and export some tracefs functions

Export a few tracefs functions that will be needed by the eventfs dynamic
file system. Rename them to start with "tracefs_" to keep with the name
space.

start_creating -> tracefs_start_creating
failed_creating -> tracefs_failed_creating
end_creating -> tracefs_end_creating

Signed-off-by: Ajay Kaher <akaher@...are.com>
Co-developed-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
Tested-by: Ching-lin Yu <chinglinyu@...gle.com>
---
 fs/tracefs/inode.c    | 20 ++++++++++----------
 fs/tracefs/internal.h |  5 +++++
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 2508944cc4d8..4acc4b4dfd22 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -147,7 +147,7 @@ static const struct inode_operations tracefs_dir_inode_operations = {
 	.rmdir		= tracefs_syscall_rmdir,
 };
 
-static struct inode *tracefs_get_inode(struct super_block *sb)
+struct inode *tracefs_get_inode(struct super_block *sb)
 {
 	struct inode *inode = new_inode(sb);
 	if (inode) {
@@ -422,7 +422,7 @@ static struct file_system_type trace_fs_type = {
 };
 MODULE_ALIAS_FS("tracefs");
 
-static struct dentry *start_creating(const char *name, struct dentry *parent)
+struct dentry *tracefs_start_creating(const char *name, struct dentry *parent)
 {
 	struct dentry *dentry;
 	int error;
@@ -460,7 +460,7 @@ static struct dentry *start_creating(const char *name, struct dentry *parent)
 	return dentry;
 }
 
-static struct dentry *failed_creating(struct dentry *dentry)
+struct dentry *tracefs_failed_creating(struct dentry *dentry)
 {
 	inode_unlock(d_inode(dentry->d_parent));
 	dput(dentry);
@@ -468,7 +468,7 @@ static struct dentry *failed_creating(struct dentry *dentry)
 	return NULL;
 }
 
-static struct dentry *end_creating(struct dentry *dentry)
+struct dentry *tracefs_end_creating(struct dentry *dentry)
 {
 	inode_unlock(d_inode(dentry->d_parent));
 	return dentry;
@@ -513,14 +513,14 @@ struct dentry *tracefs_create_file(const char *name, umode_t mode,
 	if (!(mode & S_IFMT))
 		mode |= S_IFREG;
 	BUG_ON(!S_ISREG(mode));
-	dentry = start_creating(name, parent);
+	dentry = tracefs_start_creating(name, parent);
 
 	if (IS_ERR(dentry))
 		return NULL;
 
 	inode = tracefs_get_inode(dentry->d_sb);
 	if (unlikely(!inode))
-		return failed_creating(dentry);
+		return tracefs_failed_creating(dentry);
 
 	inode->i_mode = mode;
 	inode->i_fop = fops ? fops : &tracefs_file_operations;
@@ -529,13 +529,13 @@ struct dentry *tracefs_create_file(const char *name, umode_t mode,
 	inode->i_gid = d_inode(dentry->d_parent)->i_gid;
 	d_instantiate(dentry, inode);
 	fsnotify_create(d_inode(dentry->d_parent), dentry);
-	return end_creating(dentry);
+	return tracefs_end_creating(dentry);
 }
 
 static struct dentry *__create_dir(const char *name, struct dentry *parent,
 				   const struct inode_operations *ops)
 {
-	struct dentry *dentry = start_creating(name, parent);
+	struct dentry *dentry = tracefs_start_creating(name, parent);
 	struct inode *inode;
 
 	if (IS_ERR(dentry))
@@ -543,7 +543,7 @@ static struct dentry *__create_dir(const char *name, struct dentry *parent,
 
 	inode = tracefs_get_inode(dentry->d_sb);
 	if (unlikely(!inode))
-		return failed_creating(dentry);
+		return tracefs_failed_creating(dentry);
 
 	/* Do not set bits for OTH */
 	inode->i_mode = S_IFDIR | S_IRWXU | S_IRUSR| S_IRGRP | S_IXUSR | S_IXGRP;
@@ -557,7 +557,7 @@ static struct dentry *__create_dir(const char *name, struct dentry *parent,
 	d_instantiate(dentry, inode);
 	inc_nlink(d_inode(dentry->d_parent));
 	fsnotify_mkdir(d_inode(dentry->d_parent), dentry);
-	return end_creating(dentry);
+	return tracefs_end_creating(dentry);
 }
 
 /**
diff --git a/fs/tracefs/internal.h b/fs/tracefs/internal.h
index 49b5e8949e1c..f0fd565d59ec 100644
--- a/fs/tracefs/internal.h
+++ b/fs/tracefs/internal.h
@@ -16,4 +16,9 @@ static inline struct tracefs_inode *get_tracefs(const struct inode *inode)
 {
 	return container_of(inode, struct tracefs_inode, vfs_inode);
 }
+
+struct dentry *tracefs_start_creating(const char *name, struct dentry *parent);
+struct dentry *tracefs_end_creating(struct dentry *dentry);
+struct dentry *tracefs_failed_creating(struct dentry *dentry);
+struct inode *tracefs_get_inode(struct super_block *sb);
 #endif /* _TRACEFS_INTERNAL_H */
-- 
2.39.0