[PATCH -v7][RFC]: mutex: implement adaptive spinning
Peter Zijlstra writes: (Summary)
+#if 0
+ /*
+ * XXX something is iffy with owner tracking, but lockdep - which has
+ * similar checks - finds everything dandy, so disable for now.
+ if (lock->owner) {
+ printk(KERN_ERR "%d %s\n",
+ lock->owner->task->pid,
+ lock->owner->task->comm);
+ }
+ printk(KERN_ERR "%d %s\n",
+ current_thread_info()->task->pid,
+ current_thread_info()->task->comm); (Ported to mainline
+ * from the -rt tree, where it was originally implemented for rtmutexes
+ * by Steven Rostedt, based on work by Gregory Haskins, Peter Morreale
+ * and Sven Dietrich.
@@ -115,6 +122,14 @@ void __sched mutex_unlock(struct mutex *
* The unlocking fastpath is the 0->1 transition from 'locked'
* into 'unlocked' state:
*/
+#ifndef CONFIG_DEBUG_MUTEXES
+ /*
+ * When debugging is enabled we must not clear the owner before time,
+ * the slow path will always be taken, and that clears the owner field
+ * after verifying that it was indeed current.
+}
+#else
+static in
Re: [PATCH] ring_buffer: fix ring_buffer_event_length()
Ingo Molnar writes: (Summary) ]
Ingo
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Re: [PATCH] x86: mpparse.c fix style problems
"Jaswinder Singh Rajput" writes: (Summary) wrote:
I send :
[PATCH -tip 1/2] x86: rename intel_mp_floating to mpf_intel
[PATCH -tip 2/2] x86: rename all fields of mpf_intel mpf_X to X
Is this OK ?
struct mpc_ioapic and struct mpc_intsrc is based on MultiProcessor
Specification Version 1.4
But I am not able to find the specification Manual of:
struct mp_config_ioapic and struct mp_config_intsrc.
Re: [PATCH] ring_buffer: fix ring_buffer_event_length()
Ingo Molnar writes: (Summary) So we could do something more specific like:
Impact: change/fix (unused) ring-buffer API to be more useful
(For future commits.)
Ingo
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audit: EXECVE record - removed bogus newline
Jiri Pirko writes: (Summary)
record before this patch:
"type=EXECVE msg=audit(1231421801.566:31): argc=4 a0=\"./test\"\na1=\"a\"\na2=\"b\"\na3=\"c\"\n"
record after this patch:
"type=EXECVE msg=audit(1231421801.566:31): argc=4 a0=\"./test\" a1=\"a\" a2=\"b\" a3=\"c\""
Signed-off-by: Jiri Pirko <jpirko@redhat.com> 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 8cbddff..c7012e0 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1109,7 +1109,7 @@ static int audit_log_single_execve_arg(struct audit_context *context,
* so we can be sure nothing was lost. (too_long))
- audit_log_format(*ab, "a%d_len=%zu ", arg_num,
+ audit_log_format(*ab, " a%d_len=%zu", arg_num,
has_cntl ?
Re: [PATCH -tip 0/2] x86: rename intel_mp_floating and its all fields
Ingo Molnar writes: (Summary) wrote:
applied to tip/x86/cleanups, thanks!
Ingo
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