From: Rafał Miłecki <>

That function never modifies these strings so it can/should use consts.
It makes it a bit more flexible as now callers can also pass consts.

Signed-off-by: Rafał Miłecki <>
 libfstools/libfstools.h | 2 +-
 libfstools/mount.c      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libfstools/libfstools.h b/libfstools/libfstools.h
index 0398c96..f27307a 100644
--- a/libfstools/libfstools.h
+++ b/libfstools/libfstools.h
@@ -43,7 +43,7 @@ extern int mount_extroot(void);
 extern int mount_snapshot(struct volume *v);
 extern int mount_overlay(struct volume *v);
-extern int mount_move(char *oldroot, char *newroot, char *dir);
+extern int mount_move(const char *oldroot, const char *newroot, const char 
 extern int pivot(char *new, char *old);
 extern int fopivot(char *rw_root, char *ro_root);
 extern int ramoverlay(void);
diff --git a/libfstools/mount.c b/libfstools/mount.c
index 4dc6e3a..c7f2789 100644
--- a/libfstools/mount.c
+++ b/libfstools/mount.c
@@ -32,7 +32,7 @@ extern int pivot_root(const char *new_root, const char 
  * @newroot: new directory for the mount point
-mount_move(char *oldroot, char *newroot, char *dir)
+mount_move(const char *oldroot, const char *newroot, const char *dir)
 #ifndef MS_MOVE
 #define MS_MOVE        (1 << 13)

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