After "NFS" (SUNRPC + NFSd actually) containerization work some basic principles of SUNRPC service initialization and deinitialization has been changed: now one service can be shared between different network namespaces and network "resources" can be attached or detached from the running service. This leads to races, described here: https://bugzilla.redhat.com/show_bug.cgi?id=904870 and which this small patch set is aimed to solve by using per-cpu rw semphores to sync per-net resources processing and shutdown. The following series implements... --- Stanislav Kinsbursky (2): per-cpu semaphores: export symbols to modules SUNRPC: protect transport processing with per-cpu rw semaphore include/linux/sunrpc/svc.h | 2 ++ lib/Makefile | 2 +- lib/percpu-rwsem.c | 6 ++++++ net/sunrpc/Kconfig | 1 + net/sunrpc/svc.c | 2 ++ net/sunrpc/svc_xprt.c | 33 +++++++++++++++++++++++++++------ 6 files changed, 39 insertions(+), 7 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
