Andy Lutomirski 6ef4536e2f init: allow CONFIG_INIT_FALLBACK=n to disable defaults if init= fails ...

If a user puts init=/whatever on the command line and /whatever can't be
run, then the kernel will try a few default options before giving up.  If
init=/whatever came from a bootloader prompt, then this is unexpected but
probably harmless.  On the other hand, if it comes from a script (e.g.  a
tool like virtme or perhaps a future kselftest script), then the fallbacks
are likely to exist, but they'll do the wrong thing.  For example, they
might unexpectedly invoke systemd.

This adds a config option CONFIG_INIT_FALLBACK.  If unset, then a failure
to run the specified init= process be fatal.

The tentative plan is to remove CONFIG_INIT_FALLBACK for 3.20.

[[email protected]: coding-style fixes]
Signed-off-by: Andy Lutomirski <[email protected]>
Cc: Rob Landley <[email protected]>
Cc: Chuck Ebbert <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Frank Rowand <[email protected]>
Cc: Josh Triplett <[email protected]>
Acked-by: Rusty Russell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

2014-12-10 17:41:12 -08:00

..

calibrate.c

kernel: add calibration_delay_done()

2014-06-16 12:47:39 -06:00

do_mounts_initrd.c

usermodehelper: split remaining calls to call_usermodehelper_fns()

2013-04-30 17:04:06 -07:00

do_mounts_md.c

…

do_mounts_rd.c

initramfs: support initramfs that is bigger than 2GiB

2014-08-08 15:57:26 -07:00

do_mounts.c

Revert "init: make rootdelay=N consistent with rootwait behaviour"

2014-09-17 08:02:07 -07:00

do_mounts.h

…

init_task.c

sched/rt: Move rt specific bits into new header file

2013-02-07 20:51:08 +01:00

initramfs.c

init/initramfs.c: resolve shadow warnings

2014-10-14 02:18:22 +02:00

Kconfig

init: allow CONFIG_INIT_FALLBACK=n to disable defaults if init= fails

2014-12-10 17:41:12 -08:00

main.c

init: allow CONFIG_INIT_FALLBACK=n to disable defaults if init= fails

2014-12-10 17:41:12 -08:00

Makefile

…

noinitramfs.c

…

version.c

proc: Split the namespace stuff out into linux/proc_ns.h

2013-05-01 17:29:39 -04:00