We encountered some crashes recently and they are caused by the race between the access and free of link/link group in smc link group termination. The crashes can be reproduced in frequent abnormal link group termination, like set RNICs up/down. This set of patches tries to fix this by extending the life cycle of link/link group to ensure that they won't be referred to after cleared or freed. v1->v2 - Declare __smcr_link_clear() as 'static' Best wishes, Wen Gu Wen Gu (2): net/smc: Resolve the race between link group access and termination net/smc: Resolve the race between SMC-R link access and clear net/smc/smc.h | 1 + net/smc/smc_core.c | 80 ++++++++++++++++++++++++++++++++++++++++++++++++------ net/smc/smc_core.h | 7 +++++ 3 files changed, 79 insertions(+), 9 deletions(-) -- 1.8.3.1
