[for-next][PATCH 08/15] tracefs: Rename and export some tracefs functions

From: Steven Rostedt
Date: Mon Jul 31 2023 - 19:17:39 EST


From: Ajay Kaher <akaher@xxxxxxxxxx>

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

Link: https://lkml.kernel.org/r/1690568452-46553-4-git-send-email-akaher@xxxxxxxxxx

Signed-off-by: Ajay Kaher <akaher@xxxxxxxxxx>
Co-developed-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
Tested-by: Ching-lin Yu <chinglinyu@xxxxxxxxxx>
Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
---
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 954ea005632b..7dfb7ebc1c3f 100644
--- a/fs/tracefs/internal.h
+++ b/fs/tracefs/internal.h
@@ -12,4 +12,9 @@ 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 */
--
2.40.1