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authorRodrigo Vivi <rodrigo.vivi@intel.com>2024-12-02 11:22:11 -0500
committerRodrigo Vivi <rodrigo.vivi@intel.com>2024-12-02 11:22:11 -0500
commit8f109f287fdc7b8fc7dcb6b2190c8b17dc22fcda (patch)
tree8c59d34866fcb6d121bbb30014ca46a49a818f1b /net/Kconfig.debug
parent54254727837440966c3381ea688df002ff14f269 (diff)
parent40384c840ea1944d7c5a392e8975ed088ecf0b37 (diff)
Merge drm/drm-next into drm-xe-next
A backmerge to get the PMT preparation work for merging the BMG PMT support. Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'net/Kconfig.debug')
-rw-r--r--net/Kconfig.debug15
1 files changed, 15 insertions, 0 deletions
diff --git a/net/Kconfig.debug b/net/Kconfig.debug
index 5e3fffe707dd..277fab8c4d77 100644
--- a/net/Kconfig.debug
+++ b/net/Kconfig.debug
@@ -24,3 +24,18 @@ config DEBUG_NET
help
Enable extra sanity checks in networking.
This is mostly used by fuzzers, but is safe to select.
+
+config DEBUG_NET_SMALL_RTNL
+ bool "Add extra per-netns mutex inside RTNL"
+ depends on DEBUG_KERNEL && NET && LOCK_DEBUGGING_SUPPORT
+ select PROVE_LOCKING
+ default n
+ help
+ rtnl_lock() is being replaced with rtnl_net_lock() that
+ acquires the global RTNL and a small per-netns RTNL mutex.
+
+ During the conversion, rtnl_net_lock() just adds an extra
+ mutex in every RTNL scope and slows down the operations.
+
+ Once the conversion completes, rtnl_lock() will be removed
+ and rtnetlink will gain per-netns scalability.