Mathieu Desnoyers
dc102a8fae
Markers - remove extra format argument
...
Denys Vlasenko <vda.linux@googlemail.com> :
> Not in this patch, but I noticed:
>
> #define __trace_mark(name, call_private, format, args...) \
> do { \
> static const char __mstrtab_##name[] \
> __attribute__((section("__markers_strings"))) \
> = #name "\0" format; \
> static struct marker __mark_##name \
> __attribute__((section("__markers"), aligned(8))) = \
> { __mstrtab_##name, &__mstrtab_##name[sizeof(#name)], \
> 0, 0, marker_probe_cb, \
> { __mark_empty_function, NULL}, NULL }; \
> __mark_check_format(format, ## args); \
> if (unlikely(__mark_##name.state)) { \
> (*__mark_##name.call) \
> (&__mark_##name, call_private, \
> format, ## args); \
> } \
> } while (0)
>
> In this call:
>
> (*__mark_##name.call) \
> (&__mark_##name, call_private, \
> format, ## args); \
>
> you make gcc allocate duplicate format string. You can use
> &__mstrtab_##name[sizeof(#name)] instead since it holds the same string,
> or drop ", format," above and "const char *fmt" from here:
>
> void (*call)(const struct marker *mdata, /* Probe wrapper */
> void *call_private, const char *fmt, ...);
>
> since mdata->format is the same and all callees which need it can take it there.
Very good point. I actually thought about dropping it, since it would
remove an unnecessary argument from the stack. And actually, since I now
have the marker_probe_cb sitting between the marker site and the
callbacks, there is no API change required. Thanks :)
Mathieu
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-23 22:25:27 +02:00
..
irq
genirq: reenable a nobody cared disabled irq when a new driver arrives
2008-05-02 13:40:34 +02:00
power
Merge branches 'release', 'acpica', 'bugzilla-10224', 'bugzilla-9772', 'bugzilla-9916', 'ec', 'eeepc', 'idle', 'misc', 'pm-legacy', 'sysfs-links-2.6.26', 'thermal', 'thinkpad' and 'video' into release
2008-04-30 13:58:00 -04:00
time
clocksource: allow read access to available/current_clocksource
2008-05-03 18:11:48 +02:00
trace
ftrace: limit trace entries
2008-05-23 22:05:14 +02:00
.gitignore
Update kernel/.gitignore with new auto-generated files
2008-02-09 23:27:01 -08:00
acct.c
bsd_acct: using task_struct->tgid is not right in pid-namespaces
2008-03-24 19:22:20 -07:00
audit.c
[patch 1/1] audit_send_reply(): fix error-path memory leak
2008-05-17 03:30:22 -04:00
audit.h
[PATCH 1/2] audit: move extern declarations to audit.h
2008-04-28 06:28:04 -04:00
audit_tree.c
[PATCH] list_for_each_rcu must die: audit
2008-05-17 03:30:23 -04:00
auditfilter.c
Merge branch 'audit.b50' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current
2008-04-29 11:41:22 -07:00
auditsc.c
[PATCH] new predicate - AUDIT_FILETYPE
2008-04-28 06:28:37 -04:00
backtracetest.c
bounds.c
Add kbuild.h that contains common definitions for kbuild users
2008-04-29 08:06:29 -07:00
capability.c
cgroup.c
mm: bdi: add separate writeback accounting capability
2008-04-30 08:29:50 -07:00
cgroup_debug.c
CGroup API files: move "releasable" to cgroup_debug subsystem
2008-04-29 08:06:09 -07:00
compat.c
ntp: support for TAI
2008-05-01 08:03:59 -07:00
configs.c
kernel: use non-racy method for proc entries creation
2008-04-29 08:06:22 -07:00
cpu.c
kernel: replace remaining __FUNCTION__ occurrences
2008-04-30 08:29:54 -07:00
cpuset.c
Fix cpuset sched_relax_domain_level control file
2008-05-08 10:46:56 -07:00
delayacct.c
dma.c
kernel: use non-racy method for proc entries creation
2008-04-29 08:06:22 -07:00
exec_domain.c
exit.c
[PATCH] split linux/file.h
2008-05-01 13:08:16 -04:00
extable.c
fork.c
ftrace: trace irq disabled critical timings
2008-05-23 20:32:46 +02:00
futex.c
Removal of FUTEX_FD
2008-05-05 08:18:45 -07:00
futex_compat.c
futex_compat __user annotation
2008-03-30 14:18:41 -07:00
hrtimer.c
hrtimer: remove duplicate helper function
2008-05-03 18:11:48 +02:00
itimer.c
kallsyms.c
kernel: use non-racy method for proc entries creation
2008-04-29 08:06:22 -07:00
Kconfig.hz
Kconfig.preempt
rcu: move PREEMPT_RCU config option back under PREEMPT
2008-03-10 18:01:20 -07:00
kexec.c
kexec: make extended crashkernel= syntax less confusing
2008-05-01 08:04:00 -07:00
kfifo.c
kgdb.c
lib: create common ascii hex array
2008-05-14 19:11:14 -07:00
kmod.c
[PATCH] split linux/file.h
2008-05-01 13:08:16 -04:00
kprobes.c
kprobes: add (un)register_jprobes for batch registration
2008-04-28 08:58:32 -07:00
ksysfs.c
kthread.c
Deprecate find_task_by_pid()
2008-04-30 08:29:48 -07:00
latencytop.c
kernel: use non-racy method for proc entries creation
2008-04-29 08:06:22 -07:00
lockdep.c
lockdep: update lockdep_recursion on graph_lock
2008-05-23 21:50:21 +02:00
lockdep_internals.h
lockdep_proc.c
kernel: use non-racy method for proc entries creation
2008-04-29 08:06:22 -07:00
Makefile
ftrace: use Makefile to remove tracing from lockdep
2008-05-23 21:15:14 +02:00
marker.c
Markers - remove extra format argument
2008-05-23 22:25:27 +02:00
module.c
module: don't ignore vermagic string if module doesn't have modversions
2008-05-09 07:45:18 -07:00
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
notifier.c
ipc: re-enable msgmni automatic recomputing msgmni if set to negative
2008-04-29 08:06:13 -07:00
ns_cgroup.c
cgroups: kernel/ns_cgroup.c should #include <linux/nsproxy.h>
2008-04-29 08:06:07 -07:00
nsproxy.c
ipc: sysvsem: refuse clone(CLONE_SYSVSEM|CLONE_NEWIPC)
2008-04-29 08:06:14 -07:00
panic.c
Taint kernel after WARN_ON(condition)
2008-04-29 08:05:59 -07:00
params.c
Add new string functions strict_strto* and convert kernel params to use them
2008-02-08 09:22:41 -08:00
pid.c
pids: introduce change_pid() helper
2008-04-30 08:29:48 -07:00
pid_namespace.c
pidns: make pid->level and pid_ns->level unsigned
2008-04-30 08:29:49 -07:00
pm_qos_params.c
posix-cpu-timers.c
remove div_long_long_rem
2008-05-01 08:03:58 -07:00
posix-timers.c
signals: join send_sigqueue() with send_group_sigqueue()
2008-04-30 08:29:36 -07:00
printk.c
ftrace: trace irq disabled critical timings
2008-05-23 20:32:46 +02:00
profile.c
kernel: use non-racy method for proc entries creation
2008-04-29 08:06:22 -07:00
ptrace.c
make generic sys_ptrace unconditional
2008-05-01 10:21:54 -07:00
rcuclassic.c
rcupdate.c
rcupdate: fix comment
2008-02-13 16:21:18 -08:00
rcupreempt.c
generic: reduce stack pressure in sched_affinity
2008-04-19 19:44:59 +02:00
rcupreempt_trace.c
rcutorture.c
kernel: explicitly include required header files under kernel/
2008-04-29 08:06:04 -07:00
relay.c
Revert "relay: fix splice problem"
2008-05-08 14:06:19 +02:00
res_counter.c
memcgroup: add the max_usage member on the res_counter
2008-04-29 08:06:10 -07:00
resource.c
kernel: use non-racy method for proc entries creation
2008-04-29 08:06:22 -07:00
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
hrtimer: more hrtimer_init_sleeper() fallout.
2008-02-13 15:45:36 +01:00
rtmutex.h
rtmutex_common.h
rwsem.c
sched.c
ftrace: remove add-hoc code
2008-05-23 21:13:32 +02:00
sched_clock.c
sched: add optional support for CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
2008-05-05 23:56:18 +02:00
sched_debug.c
sched: add optional support for CONFIG_HAVE_UNSTABLE_SCHED_CLOCK
2008-05-05 23:56:18 +02:00
sched_fair.c
ftrace: remove add-hoc code
2008-05-23 21:13:32 +02:00
sched_features.h
sched: /debug/sched_features
2008-04-19 19:45:00 +02:00
sched_idletask.c
sched: make rt_sched_class, idle_sched_class static
2008-05-05 23:56:17 +02:00
sched_rt.c
sched: fix RT task-wakeup logic
2008-05-05 23:56:18 +02:00
sched_stats.h
cpumask: use new cpus_scnprintf function
2008-04-19 19:44:59 +02:00
seccomp.c
semaphore.c
Revert "semaphore: fix"
2008-05-10 20:43:22 -07:00
signal.c
signals: add set_restore_sigmask
2008-04-30 08:29:37 -07:00
softirq.c
Fix cpu hotplug problem in softirq code
2008-05-01 08:03:58 -07:00
softlockup.c
softlockup: fix task state setting
2008-02-29 18:46:53 +01:00
spinlock.c
ftrace: lockdep notrace annotations
2008-05-23 20:39:40 +02:00
srcu.c
stacktrace.c
stop_machine.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/juhl/trivial
2008-04-21 16:36:46 -07:00
sys.c
pids: sys_getpgid: fix unsafe *pid usage, s/tasklist/rcu/
2008-04-30 08:29:49 -07:00
sys_ni.c
sysctl.c
ftrace: add ftrace_enabled sysctl to disable mcount function
2008-05-23 20:33:19 +02:00
sysctl_check.c
taskstats.c
Use find_task_by_vpid in taskstats
2008-04-30 08:29:48 -07:00
test_kprobes.c
time.c
Make constants in kernel/timeconst.h fixed 64 bits
2008-05-02 16:18:42 -07:00
timeconst.pl
Make constants in kernel/timeconst.h fixed 64 bits
2008-05-02 16:18:42 -07:00
timer.c
debugobjects: add timer specific object debugging code
2008-04-30 08:29:53 -07:00
tsacct.c
uid16.c
asmlinkage_protect replaces prevent_tail_call
2008-04-10 17:28:26 -07:00
user.c
alloc_uid: cleanup
2008-04-30 08:29:53 -07:00
user_namespace.c
eCryptfs: make key module subsystem respect namespaces
2008-04-29 08:06:07 -07:00
utsname.c
kernel: explicitly include required header files under kernel/
2008-04-29 08:06:04 -07:00
utsname_sysctl.c
wait.c
workqueue.c
workqueue: remove redundant function invocation
2008-05-01 08:04:02 -07:00