Messages in this thread | | | Subject | [PATCH 0/2] NFSD: fix races in service per-net resources allocation | From | Stanislav Kinsbursky <> | Date | Fri, 01 Feb 2013 14:28:21 +0300 |
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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...
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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(-)
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