AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-01-21 17:51:17 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

staging: lustre: ldlm: cancel aged locks for LRUR

Browse Source 
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@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6529
Reviewed-on: http://review.whamcloud.com/14856
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Niu Yawei 2016-10-02 22:28:30 -04:00 committed by Greg Kroah-Hartman
parent f648eed6f3
commit 0154672fbe
2 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/staging/lustre/lustre/include/lustre_dlm.h
View File

@ -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
/**

8
drivers/staging/lustre/lustre/ldlm/ldlm_request.c
View File

@ -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));