init: export name_to_dev_t and mark name argument as const

Dan Ehrenberg · snitm · commit e6e20a7a5f3f · 2015-04-15T12:10:18.000-04:00
DM will switch its device lookup code to using name_to_dev_t() so it must be exported. Also, the @name argument should be marked const. Signed-off-by: Dan Ehrenberg <dehrenberg@chromium.org> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
diff --git a/include/linux/mount.h b/include/linux/mount.h
@@ -92,6 +92,6 @@ extern struct vfsmount *vfs_kern_mount(struct file_system_type *type,
 extern void mnt_set_expiry(struct vfsmount *mnt, struct list_head *expiry_list);
 extern void mark_mounts_for_expiry(struct list_head *mounts);
 
-extern dev_t name_to_dev_t(char *name);
+extern dev_t name_to_dev_t(const char *name);
 
 #endif /* _LINUX_MOUNT_H */
diff --git a/init/do_mounts.c b/init/do_mounts.c
@@ -207,7 +207,7 @@ static dev_t devt_from_partuuid(const char *uuid_str)
  *	bangs.
  */
 
-dev_t name_to_dev_t(char *name)
+dev_t name_to_dev_t(const char *name)
 {
 	char s[32];
 	char *p;
@@ -286,6 +286,7 @@ dev_t name_to_dev_t(char *name)
 done:
 	return res;
 }
+EXPORT_SYMBOL_GPL(name_to_dev_t);
 
 static int __init root_dev_setup(char *line)
 {

Original file line number	Diff line number	Diff line change
`@@ -207,7 +207,7 @@ static dev_t devt_from_partuuid(const char *uuid_str)`
`207`	`207`	`* bangs.`
`208`	`208`	`*/`
`209`	`209`
`210`		`-dev_t name_to_dev_t(char *name)`
	`210`	`+dev_t name_to_dev_t(const char *name)`
`211`	`211`	`{`
`212`	`212`	`char s[32];`
`213`	`213`	`char *p;`
`@@ -286,6 +286,7 @@ dev_t name_to_dev_t(char *name)`
`286`	`286`	`done:`
`287`	`287`	`return res;`
`288`	`288`	`}`
	`289`	`+EXPORT_SYMBOL_GPL(name_to_dev_t);`
`289`	`290`
`290`	`291`	`static int __init root_dev_setup(char *line)`
`291`	`292`	`{`