Luis R. Rodriguez c0a318a361 printk: move power of 2 practice of ring buffer size to a helper ... In practice the power of 2 practice of the size of the kernel ring buffer remains purely historical but not a requirement, specially now that we have LOG_ALIGN and use it for both static and dynamic allocations. It could have helped with implicit alignment back in the days given the even the dynamically sized ring buffer was guaranteed to be aligned so long as CONFIG_LOG_BUF_SHIFT was set to produce a __LOG_BUF_LEN which is architecture aligned, since log_buf_len=n would be allowed only if it was > __LOG_BUF_LEN and we always ended up rounding the log_buf_len=n to the next power of 2 with roundup_pow_of_two(), any multiple of 2 then should be also architecture aligned. These assumptions of course relied heavily on CONFIG_LOG_BUF_SHIFT producing an aligned value but users can always change this. We now have precise alignment requirements set for the log buffer size for both static and dynamic allocations, but lets upkeep the old practice of using powers of 2 for its size to help with easy expected scalable values and the allocators for dynamic allocations. We'll reuse this later so move this into a helper. Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Michal Hocko <mhocko@suse.cz> Cc: Petr Mladek <pmladek@suse.cz> Cc: Joe Perches <joe@perches.com> Cc: Arun KS <arunks.linux@gmail.com> Cc: Kees Cook <keescook@chromium.org> Cc: Davidlohr Bueso <davidlohr@hp.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-08-06 18:01:23 -07:00
..
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	Linux 3.16-rc7	2014-07-28 10:00:33 +02:00
gcov	gcov: add support for GCC 4.9	2014-06-10 15:34:46 -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	This pull request has a lot of work done. The main thing is the changes	2014-08-04 11:50:00 -07:00
printk	printk: move power of 2 practice of ring buffer size to a helper	2014-08-06 18:01:23 -07:00
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 branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-08-04 16:23:30 -07:00
time	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-08-05 17:46:42 -07:00
trace	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-08-05 17:46:42 -07:00
.gitignore
acct.c	sched: Make task->start_time nanoseconds based	2014-07-23 10:18:05 -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	kernel/backtracetest.c: replace no level printk by pr_info()	2014-06-04 16:54:14 -07:00
bounds.c
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	kernel/exec_domain.c: code clean-up	2014-06-04 16:54:15 -07:00
exit.c	mm, oom: remove unnecessary exit_state check	2014-08-06 18:01:21 -07:00
extable.c
fork.c	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2014-08-06 08:06:39 -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	kernel/groups.c: remove return value of set_groups	2014-04-03 16:21:05 -07:00
hung_task.c	kernel/hung_task.c: convert simple_strtoul to kstrtouint	2014-06-04 16:54:15 -07:00
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: use macros from compiler.h instead of __attribute__((...))	2014-04-07 16:36:11 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks	locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER	2014-07-16 14:57:13 +02:00
Kconfig.preempt
kexec.c	kexec: fix build error when hugetlbfs is disabled	2014-07-30 20:09:37 -07:00
kmod.c	signals: change wait_for_helper() to use kernel_sigaction()	2014-06-06 16:08:12 -07:00
kprobes.c	kprobes: Fix "Failed to find blacklist" probing errors on ia64 and ppc64	2014-07-18 06:23:40 +02:00
ksysfs.c	kobject: Make support for uevent_helper optional.	2014-04-25 12:00:49 -07:00
kthread.c	kthread_work: wake up worker only when the worker is idle	2014-07-28 14:07:52 -04:00
latencytop.c	kernel/latencytop.c: convert seq_printf to seq_puts	2014-06-04 16:54:15 -07:00
Makefile	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-08-06 09:38:14 -07:00
module-internal.h
module.c	crypto: fips - only panic on bad/missing crypto mod signatures	2014-07-03 21:38:32 +08:00
module_signing.c
notifier.c	kprobes, notifier: Use NOKPROBE_SYMBOL macro in notifier	2014-04-24 10:26:39 +02:00
nsproxy.c
padata.c
panic.c	kernel/panic.c: add "crash_kexec_post_notifiers" option for kdump after panic_notifers	2014-06-06 16:08:12 -07:00
params.c	param: hand arguments after -- straight to init	2014-04-28 11:48:34 +09:30
pid.c
pid_namespace.c	pid_namespace: pidns_get() should check task_active_pid_ns() != NULL	2014-04-02 16:20:21 -07:00
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	kernel/reboot.c: convert simple_strtoul to kstrtoint	2014-06-04 16:54:15 -07:00
relay.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-04-12 14:49:50 -07:00
res_counter.c	kernel/res_counter.c: replace simple_strtoull by kstrtoull	2014-06-04 16:54:15 -07:00
resource.c	resources: Clarify sanity check message	2014-05-23 10:47:21 -06:00
seccomp.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-08-06 09:38:14 -07:00
signal.c	signal: Explain local_irq_save() call	2014-07-09 09:14:33 -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	Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu	2014-05-22 11:36:10 +02:00
stacktrace.c
stop_machine.c	kernel/stop_machine.c: kernel-doc warning fix	2014-06-04 16:54:15 -07:00
sys.c	sched: move no_new_privs into new atomic flags	2014-07-18 12:13:38 -07:00
sys_ni.c	seccomp: add "seccomp" syscall	2014-07-18 12:13:37 -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
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	kernel/user_namespace.c: kernel-doc/checkpatch fixes	2014-06-06 16:08:13 -07:00
utsname.c
utsname_sysctl.c	sysctl: convert use of typedef ctl_table to struct ctl_table	2014-06-06 16:08:16 -07:00
watchdog.c	kernel/watchdog.c: convert printk/pr_warning to pr_foo()	2014-08-06 18:01:13 -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	workqueue: rename manager_mutex to attach_mutex	2014-05-20 10:59:32 -04:00