Messages in this thread | | | Date | Thu, 8 Nov 2007 20:36:18 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] init: Introduce rootdir bootparm to select which dir to sys_chroot |
| |
> On Tue, 6 Nov 2007 13:40:26 +0300 Al Boldi <a1426z@gawab.com> wrote: > > This patch introduces a rootdir kernel boot parameter, which specifies the > path to the kernel sys_chroot boot dir. > > This is useful for systems that have more than one distribution installed on > the same fs/partition. > > > Cc: H. Peter Anvin <hpa@zytor.com> > Cc: Andrew Morton <akpm@linux-foundation.org> > Signed-off-by: Al Boldi <a1426z@gawab.com> > > --- > > --- a/init/do_mounts.c > +++ b/init/do_mounts.c > @@ -252,6 +252,15 @@ __setup("rootflags=", root_data_setup); > __setup("rootfstype=", fs_names_setup); > __setup("rootdelay=", root_delay_setup); > > +static char * __initdata root_dir; > +static int __init root_dir_setup(char *str) > +{ > + root_dir = strcat("./",str); > + return 1; > +} > + > +__setup("rootdir=", root_dir_setup);
Please update Documentation/kernel-parameters.txt when adding __setup options.
> static void __init get_fs_names(char *page) > { > char *s = page; > @@ -469,6 +478,10 @@ void __init prepare_namespace(void) > mount_root(); > out: > sys_mount(".", "/", NULL, MS_MOVE, NULL); > + > + if(root_dir) > + sys_chdir(root_dir); > +
Please run scripts/checkpatch.pl across all patches before sending them to anyone.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |