[systemd-devel] [PATCH] remount-fs: pass fstab options to mount

[richard.maw at codethink.co.uk]

From: Richard Maw <richard.maw at codethink.co.uk>

busybox's mount implementation doesn't re-read the options from
the fstab, it uses the flags it has in mtab.
This makes `mount -o remount $device` a no-op.

Rather than do string concatenation, add another -o option to the
list of parameters, since -o is cumulative.
---
 src/remount-fs/remount-fs.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/remount-fs/remount-fs.c b/src/remount-fs/remount-fs.c
index ef68e50..56b51ae 100644
--- a/src/remount-fs/remount-fs.c
+++ b/src/remount-fs/remount-fs.c
@@ -94,14 +94,16 @@ int main(int argc, char *argv[]) {
                 }
 
                 if (pid == 0) {
-                        const char *arguments[5];
+                        const char *arguments[7];
                         /* Child */
 
                         arguments[0] = "/bin/mount";
                         arguments[1] = me->mnt_dir;
                         arguments[2] = "-o";
                         arguments[3] = "remount";
-                        arguments[4] = NULL;
+                        arguments[4] = "-o";
+                        arguments[5] = me->mnt_opts;
+                        arguments[6] = NULL;
 
                         execv("/bin/mount", (char **) arguments);
 
-- 
1.7.5.4