Date: Tue, 2 Jul 2013 01:11:52 +0200 From: Robert Millan <rmh@freebsd.org> To: freebsd-fs@freebsd.org Subject: Compatibility options for mount(8) Message-ID: <CAOfDtXM_KJeLLUcsFA0EZOC8ZgSjKiLKuGeeNPQKCcZwcaJbCQ@mail.gmail.com>
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[-- Attachment #1 --]
Hi,
On Debian GNU/kFreeBSD, we've been using these bits of glue to make
FreeBSD mount a bit more compatible with the Linux version of mount.
We found that this occasionally helps when porting software that needs
to use those features and relies on Linux semantics:
- Ignore "-n" flag, since it requests not to update /etc/mtab, which
we never do anyway.
- Map "-o remount" to its FreeBSD equivalent, "-o update".
I'd like to check in the attached patch. Please have a look!
Thanks
--
Robert Millan
[-- Attachment #2 --]
Index: sbin/mount/mount.c
===================================================================
--- sbin/mount/mount.c (revision 252490)
+++ sbin/mount/mount.c (working copy)
@@ -253,7 +253,7 @@
options = NULL;
vfslist = NULL;
vfstype = "ufs";
- while ((ch = getopt(argc, argv, "adF:fLlo:prt:uvw")) != -1)
+ while ((ch = getopt(argc, argv, "adF:fLlo:prt:uvwn")) != -1)
switch (ch) {
case 'a':
all = 1;
@@ -274,6 +274,9 @@
case 'l':
late = 1;
break;
+ case 'n':
+ /* For compatibility with the Linux version of mount. */
+ break;
case 'o':
if (*optarg) {
options = catopt(options, optarg);
@@ -771,6 +774,11 @@
} else if (strncmp(p, groupquotaeq,
sizeof(groupquotaeq) - 1) == 0) {
continue;
+ } else if (strcmp(p, "remount") == 0) {
+ /* For compatibility with the Linux version of mount. */
+ append_arg(a, strdup("-o"));
+ append_arg(a, strdup("update"));
+ continue;
} else if (*p == '-') {
append_arg(a, p);
p = strchr(p, '=');
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