workqueue: skip the node_nr_active update for non-unbound workqueuesgrafted

apply_wqattrs_commit() updates node_nr_active->max unconditionally.
wq->node_nr_active[] is only allocated for unbound workqueues, so guard
the call before per-cpu workqueues start using this path.

No functional change: only unbound workqueues reach apply_wqattrs_*()
today.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug
new file mode 100644
index 000000000..1dfb2959c
--- /dev/null
+++ b/arch/um/Kconfig.debug
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config GPROF
+	bool "Enable gprof support"
+	depends on DEBUG_INFO && FRAME_POINTER
+	help
+	  This allows profiling of a User-Mode Linux kernel with the gprof
+	  utility.
+
+	  See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more
+	  details.
+
+	  If you're involved in UML kernel development and want to use gprof,
+	  say Y.  If you're unsure, say N.
+
+config GCOV
+	bool "Enable gcov support"
+	depends on DEBUG_INFO
+	depends on !KCOV
+	depends on !MODULES
+	help
+	  This option allows developers to retrieve coverage data from a UML
+	  session.
+
+	  See <http://user-mode-linux.sourceforge.net/old/gprof.html> for more
+	  details.
+
+	  If you're involved in UML kernel development and want to use gcov,
+	  say Y.  If you're unsure, say N.
+
+config EARLY_PRINTK
+	bool "Early printk"
+	default y
+	help
+	  Write kernel log output directly to stdout.
+
+	  This is useful for kernel debugging when your machine crashes very
+	  early before the console code is initialized.