From: Jinshan Xiong <jinshan.xiong@xxxxxxxxx> To avoid a race that osc_extent and osc_object destroy happens on the same time, which causes kernel crash. Signed-off-by: Jinshan Xiong <jinshan.xiong@xxxxxxxxx> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7164 Reviewed-on: http://review.whamcloud.com/16433 Reviewed-by: John L. Hammond <john.hammond@xxxxxxxxx> Reviewed-by: Patrick Farrell <paf@xxxxxxxx> Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx> Signed-off-by: James Simmons <jsimmons@xxxxxxxxxxxxx> --- drivers/staging/lustre/lustre/osc/osc_cache.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index d17ec32..0ca01b1 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -360,6 +360,7 @@ static void osc_extent_state_set(struct osc_extent *ext, int state) RB_CLEAR_NODE(&ext->oe_node); ext->oe_obj = obj; + cl_object_get(osc2cl(obj)); atomic_set(&ext->oe_refc, 1); atomic_set(&ext->oe_users, 0); INIT_LIST_HEAD(&ext->oe_link); @@ -398,6 +399,7 @@ static void osc_extent_put(const struct lu_env *env, struct osc_extent *ext) LDLM_LOCK_PUT(ext->oe_dlmlock); ext->oe_dlmlock = NULL; } + cl_object_put(env, osc2cl(ext->oe_obj)); osc_extent_free(ext); } } -- 1.7.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
