vfs: add file_path() helper
Turn
d_path(&file->f_path, ...);
into
file_path(file, ...);
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 241ef68..5046b62 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1530,7 +1530,7 @@
file = vma->vm_file;
if (!file)
continue;
- filename = d_path(&file->f_path, name_curpos, remaining);
+ filename = file_path(file, name_curpos, remaining);
if (IS_ERR(filename)) {
if (PTR_ERR(filename) == -ENAMETOOLONG) {
vfree(data);
@@ -1540,7 +1540,7 @@
continue;
}
- /* d_path() fills at the end, move name down */
+ /* file_path() fills at the end, move name down */
/* n = strlen(filename) + 1: */
n = (name_curpos + remaining) - filename;
remaining = filename - name_curpos;
diff --git a/fs/coredump.c b/fs/coredump.c
index bbbe139..5b771b3 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -138,7 +138,7 @@
goto put_exe_file;
}
- path = d_path(&exe_file->f_path, pathbuf, PATH_MAX);
+ path = file_path(exe_file, pathbuf, PATH_MAX);
if (IS_ERR(path)) {
ret = PTR_ERR(path);
goto free_buf;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index f06d058..0ae853d 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -449,7 +449,7 @@
es = EXT4_SB(inode->i_sb)->s_es;
es->s_last_error_ino = cpu_to_le32(inode->i_ino);
if (ext4_error_ratelimit(inode->i_sb)) {
- path = d_path(&(file->f_path), pathname, sizeof(pathname));
+ path = file_path(file, pathname, sizeof(pathname));
if (IS_ERR(path))
path = "(unknown)";
va_start(args, fmt);
diff --git a/fs/open.c b/fs/open.c
index b1c5823..1dbc793 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -823,6 +823,12 @@
}
EXPORT_SYMBOL(finish_no_open);
+char *file_path(struct file *filp, char *buf, int buflen)
+{
+ return d_path(&filp->f_path, buf, buflen);
+}
+EXPORT_SYMBOL(file_path);
+
/**
* vfs_open - open the file at the given path
* @path: path to open