From: Niu Yawei <yawei.niu@xxxxxxxxx> It doesn't make sense to keep the very aged lock even with the LRUR policy. This patch decreased the default ns_max_age from 10 hours to 65 minutes and changed LRUR policy to cancel very aged locks. Signed-off-by: Niu Yawei <yawei.niu@xxxxxxxxx> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6529 Reviewed-on: http://review.whamcloud.com/14856 Reviewed-by: Jinshan Xiong <jinshan.xiong@xxxxxxxxx> Reviewed-by: Andreas Dilger <andreas.dilger@xxxxxxxxx> Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx> Signed-off-by: James Simmons <jsimmons@xxxxxxxxxxxxx> --- drivers/staging/lustre/lustre/include/lustre_dlm.h | 2 +- drivers/staging/lustre/lustre/ldlm/ldlm_request.c | 8 ++++++++ 2 files changed, 9 insertions(+), 1 deletions(-) diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h index d035344..1c6b7b8 100644 --- a/drivers/staging/lustre/lustre/include/lustre_dlm.h +++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h @@ -59,7 +59,7 @@ struct obd_device; #define OBD_LDLM_DEVICENAME "ldlm" #define LDLM_DEFAULT_LRU_SIZE (100 * num_online_cpus()) -#define LDLM_DEFAULT_MAX_ALIVE (cfs_time_seconds(36000)) +#define LDLM_DEFAULT_MAX_ALIVE (cfs_time_seconds(3900)) /* 65 min */ #define LDLM_DEFAULT_PARALLEL_AST_LIMIT 1024 /** diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index 98730a3..ac1927c 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -1182,6 +1182,14 @@ static enum ldlm_policy_res ldlm_cancel_lrur_policy(struct ldlm_namespace *ns, if (count && added >= count) return LDLM_POLICY_KEEP_LOCK; + /* + * Despite of the LV, It doesn't make sense to keep the lock which + * is unused for ns_max_age time. + */ + if (cfs_time_after(cfs_time_current(), + cfs_time_add(lock->l_last_used, ns->ns_max_age))) + return LDLM_POLICY_CANCEL_LOCK; + slv = ldlm_pool_get_slv(pl); lvf = ldlm_pool_get_lvf(pl); la = cfs_duration_sec(cfs_time_sub(cur, lock->l_last_used)); -- 1.7.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
