diff options
| author | Mark Brown <broonie@kernel.org> | 2014-10-02 16:53:35 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-10-02 16:53:35 +0100 |
| commit | 04a0b8ef6b27c2b6280dcbfcdd418b7d851f8491 (patch) | |
| tree | 062e082e19ab94a4ca7bc60286df970debdd2d6f /lib | |
| parent | 9810f5370b6e60c4b564f294feb51761f0e741f6 (diff) | |
| parent | 2ce7598c9a453e0acd0e07be7be3f5eb39608ebd (diff) | |
Merge tag 'v3.17-rc4' into asoc-simple
Linux 3.17-rc4
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 11 | ||||
| -rw-r--r-- | lib/assoc_array.c | 2 |
2 files changed, 11 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 07c28323f88f..a28590083622 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -892,6 +892,10 @@ config DEBUG_WW_MUTEX_SLOWPATH the full mutex checks enabled with (CONFIG_PROVE_LOCKING) this will test all possible w/w mutex interface abuse with the exception of simply not acquiring all the required locks. + Note that this feature can introduce significant overhead, so + it really should not be enabled in a production or distro kernel, + even a debug kernel. If you are a driver writer, enable it. If + you are a distro, do not. config DEBUG_LOCK_ALLOC bool "Lock debugging: detect incorrect freeing of live locks" @@ -1032,8 +1036,13 @@ config TRACE_IRQFLAGS either tracing or lock debugging. config STACKTRACE - bool + bool "Stack backtrace support" depends on STACKTRACE_SUPPORT + help + This option causes the kernel to create a /proc/pid/stack for + every process, showing its current stack trace. + It is also used by various kernel debugging features that require + stack trace generation. config DEBUG_KOBJECT bool "kobject debugging" diff --git a/lib/assoc_array.c b/lib/assoc_array.c index c0b1007011e1..ae146f0734eb 100644 --- a/lib/assoc_array.c +++ b/lib/assoc_array.c @@ -1735,7 +1735,7 @@ ascend_old_tree: gc_complete: edit->set[0].to = new_root; assoc_array_apply_edit(edit); - edit->array->nr_leaves_on_tree = nr_leaves_on_tree; + array->nr_leaves_on_tree = nr_leaves_on_tree; return 0; enomem: |