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author | Ingo Molnar <mingo@elte.hu> | 2008-10-19 19:04:47 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-19 19:04:47 +0200 |
commit | 3e10e879a8c334a5927d800a3663a24d562cfa31 (patch) | |
tree | 5d18bc7e38c986a044e99aa0d0a4aff4931ec7d0 /kernel/ksysfs.c | |
parent | 98d9c66ab07471006fd7910cb16453581c41a3e7 (diff) | |
parent | 0cfd81031a26717fe14380d18275f8e217571615 (diff) | |
download | op-kernel-dev-3e10e879a8c334a5927d800a3663a24d562cfa31.zip op-kernel-dev-3e10e879a8c334a5927d800a3663a24d562cfa31.tar.gz |
Merge branch 'linus' into tracing-v28-for-linus-v3
Conflicts:
init/main.c
kernel/module.c
scripts/bootgraph.pl
Diffstat (limited to 'kernel/ksysfs.c')
-rw-r--r-- | kernel/ksysfs.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/kernel/ksysfs.c b/kernel/ksysfs.c index e53bc30..08dd8ed 100644 --- a/kernel/ksysfs.c +++ b/kernel/ksysfs.c @@ -14,6 +14,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/kexec.h> +#include <linux/profile.h> #include <linux/sched.h> #define KERNEL_ATTR_RO(_name) \ @@ -53,6 +54,37 @@ static ssize_t uevent_helper_store(struct kobject *kobj, KERNEL_ATTR_RW(uevent_helper); #endif +#ifdef CONFIG_PROFILING +static ssize_t profiling_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", prof_on); +} +static ssize_t profiling_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t count) +{ + int ret; + + if (prof_on) + return -EEXIST; + /* + * This eventually calls into get_option() which + * has a ton of callers and is not const. It is + * easiest to cast it away here. + */ + profile_setup((char *)buf); + ret = profile_init(); + if (ret) + return ret; + ret = create_proc_profile(); + if (ret) + return ret; + return count; +} +KERNEL_ATTR_RW(profiling); +#endif + #ifdef CONFIG_KEXEC static ssize_t kexec_loaded_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) @@ -109,6 +141,9 @@ static struct attribute * kernel_attrs[] = { &uevent_seqnum_attr.attr, &uevent_helper_attr.attr, #endif +#ifdef CONFIG_PROFILING + &profiling_attr.attr, +#endif #ifdef CONFIG_KEXEC &kexec_loaded_attr.attr, &kexec_crash_loaded_attr.attr, |