Vivek Goyal 74ca317c26 kexec: create a new config option CONFIG_KEXEC_FILE for new syscall ... Currently new system call kexec_file_load() and all the associated code compiles if CONFIG_KEXEC=y. But new syscall also compiles purgatory code which currently uses gcc option -mcmodel=large. This option seems to be available only gcc 4.4 onwards. Hiding new functionality behind a new config option will not break existing users of old gcc. Those who wish to enable new functionality will require new gcc. Having said that, I am trying to figure out how can I move away from using -mcmodel=large but that can take a while. I think there are other advantages of introducing this new config option. As this option will be enabled only on x86_64, other arches don't have to compile generic kexec code which will never be used. This new code selects CRYPTO=y and CRYPTO_SHA256=y. And all other arches had to do this for CONFIG_KEXEC. Now with introduction of new config option, we can remove crypto dependency from other arches. Now CONFIG_KEXEC_FILE is available only on x86_64. So whereever I had CONFIG_X86_64 defined, I got rid of that. For CONFIG_KEXEC_FILE, instead of doing select CRYPTO=y, I changed it to "depends on CRYPTO=y". This should be safer as "select" is not recursive. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: H. Peter Anvin <hpa@zytor.com> Tested-by: Shaun Ruffell <sruffell@digium.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-08-29 16:28:16 -07:00
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bpf	net: filter: split 'struct sk_filter' into socket and bpf parts	2014-08-02 15:03:58 -07:00
debug	kdb: Use ktime_get_ts()	2014-06-12 16:18:45 +02:00
events	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-08-24 16:16:55 -07:00
gcov	kernel/gcov/fs.c: remove unnecessary null test before debugfs_remove	2014-08-08 15:57:24 -07:00
irq	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-08-05 17:38:45 -07:00
locking	arch, locking: Ciao arch_mutex_cpu_relax()	2014-07-17 12:32:47 +02:00
power	Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-cpuidle'	2014-08-11 23:19:48 +02:00
printk	printk: Add function to return log buffer address and size	2014-08-13 15:13:44 +10:00
rcu	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-08-04 15:55:08 -07:00
sched	Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-cpuidle'	2014-08-11 23:19:48 +02:00
time	timekeeping: Another fix to the VSYSCALL_OLD update_vsyscall	2014-08-14 11:04:11 -06:00
trace	trace: Fix epoll hang when we race with new entries	2014-08-25 20:18:11 -04:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER	2014-07-16 14:57:13 +02:00
Kconfig.preempt	…
Makefile	bin2c: move bin2c in scripts/basic	2014-08-08 15:57:32 -07:00
acct.c	kernel/acct.c: fix coding style warnings and errors	2014-08-08 15:57:27 -07:00
async.c	…
audit.c	CAPABILITIES: remove undefined caps from all processes	2014-07-24 21:53:47 +10:00
audit.h	…
audit_tree.c	…
audit_watch.c	…
auditfilter.c	kernel/auditfilter.c: replace count*size kmalloc by kcalloc	2014-08-06 18:01:12 -07:00
auditsc.c	auditsc: audit_krule mask accesses need bounds checking	2014-06-10 08:44:40 -07:00
backtracetest.c	…
bounds.c	page-cgroup: get rid of NR_PCG_FLAGS	2014-08-08 15:57:18 -07:00
capability.c	CAPABILITIES: remove undefined caps from all processes	2014-07-24 21:53:47 +10:00
cgroup.c	Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2014-08-04 10:11:28 -07:00
cgroup_freezer.c	cgroup: rename cgroup_subsys->base_cftypes to ->legacy_cftypes	2014-07-15 11:05:09 -04:00
compat.c	kernel/compat.c: use sizeof() instead of sizeof	2014-06-04 16:54:19 -07:00
configs.c	…
context_tracking.c	x86/kprobes: Fix build errors and blacklist context_track_user	2014-06-14 09:07:44 +02:00
cpu.c	sched: Rework check_for_tasks()	2014-07-05 11:17:45 +02:00
cpu_pm.c	…
cpuset.c	Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2014-08-04 10:11:28 -07:00
crash_dump.c	…
cred.c	…
delayacct.c	delayacct: Remove braindamaged type conversions	2014-07-23 10:18:06 -07:00
dma.c	…
elfcore.c	…
exec_domain.c	…
exit.c	kernel/exit.c: fix coding style warnings and errors	2014-08-08 15:57:22 -07:00
extable.c	…
fork.c	seccomp: Replace BUG(!spin_is_locked()) with assert_spin_lock	2014-08-11 13:29:12 -07:00
freezer.c	…
futex.c	futex: Simplify futex_lock_pi_atomic() and make it more robust	2014-06-21 22:26:24 +02:00
futex_compat.c	…
groups.c	…
hung_task.c	…
irq_work.c	irq_work: Remove BUG_ON in irq_work_run()	2014-07-05 11:17:26 +02:00
jump_label.c	…
kallsyms.c	kernel/kallsyms.c: fix %pB when there's no symbol at the address	2014-08-08 15:57:18 -07:00
kcmp.c	…
kexec.c	kexec: create a new config option CONFIG_KEXEC_FILE for new syscall	2014-08-29 16:28:16 -07:00
kmod.c	signals: change wait_for_helper() to use kernel_sigaction()	2014-06-06 16:08:12 -07:00
kprobes.c	kprobes: Skip kretprobe hit in NMI context to avoid deadlock	2014-08-08 10:38:04 +02:00
ksysfs.c	…
kthread.c	kthread_work: wake up worker only when the worker is idle	2014-07-28 14:07:52 -04:00
latencytop.c	…
module-internal.h	…
module.c	module: Clean up ro/nx after early module load failures	2014-08-16 04:47:00 +09:30
module_signing.c	…
notifier.c	…
nsproxy.c	namespaces: Use task_lock and not rcu to protect nsproxy	2014-07-29 18:08:50 -07:00
padata.c	…
panic.c	panic: add TAINT_SOFTLOCKUP	2014-08-08 15:57:24 -07:00
params.c	Add module param type 'ullong'	2014-07-17 22:07:37 +02:00
pid.c	…
pid_namespace.c	…
profile.c	kernel/profile.c: use static const char instead of static char	2014-06-06 16:08:13 -07:00
ptrace.c	sched: Remove proliferation of wait_on_bit() action functions	2014-07-16 15:10:39 +02:00
range.c	…
reboot.c	…
relay.c	…
res_counter.c	…
resource.c	resource: fix the case of null pointer access	2014-08-29 16:28:15 -07:00
seccomp.c	seccomp: Replace BUG(!spin_is_locked()) with assert_spin_lock	2014-08-11 13:29:12 -07:00
signal.c	Merge branch 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc	2014-08-09 09:58:12 -07:00
smp.c	kernel/smp.c:on_each_cpu_cond(): fix warning in fallback path	2014-08-06 18:01:22 -07:00
smpboot.c	…
smpboot.h	…
softirq.c	…
stacktrace.c	…
stop_machine.c	…
sys.c	sched: move no_new_privs into new atomic flags	2014-07-18 12:13:38 -07:00
sys_ni.c	kexec: new syscall kexec_file_load() declaration	2014-08-08 15:57:32 -07:00
sysctl.c	mm, hugetlb: remove hugetlb_zero and hugetlb_infinity	2014-08-06 18:01:19 -07:00
sysctl_binary.c	ipv6: Allow accepting RA from local IP addresses.	2014-07-01 12:16:24 -07:00
system_certificates.S	…
system_keyring.c	KEYS: validate certificate trust only with builtin keys	2014-07-17 09:35:17 -04:00
task_work.c	…
taskstats.c	…
test_kprobes.c	kernel/test_kprobes.c: use current logging functions	2014-08-08 15:57:18 -07:00
torture.c	torture: Avoid format string leak to thead name	2014-07-07 10:12:56 -07:00
tracepoint.c	tracing: syscall_regfunc() should not skip kernel threads	2014-06-21 00:15:26 -04:00
tsacct.c	sched: Make task->start_time nanoseconds based	2014-07-23 10:18:05 -07:00
uid16.c	…
up.c	…
user-return-notifier.c	…
user.c	kernel/user.c: drop unused field 'files' from user_struct	2014-06-04 16:54:16 -07:00
user_namespace.c	proc: constify seq_operations	2014-08-08 15:57:22 -07:00
utsname.c	namespaces: Use task_lock and not rcu to protect nsproxy	2014-07-29 18:08:50 -07:00
utsname_sysctl.c	sysctl: convert use of typedef ctl_table to struct ctl_table	2014-06-06 16:08:16 -07:00
watchdog.c	panic: add TAINT_SOFTLOCKUP	2014-08-08 15:57:24 -07:00
workqueue.c	Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2014-08-04 10:09:27 -07:00
workqueue_internal.h	…