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| author | Dmitry Eremin <dmitry.eremin@intel.com> | 2014-04-27 13:06:59 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-27 10:30:59 -0700 |
| commit | 6246dab1d0d3a91614eb0360e51d9e98b919dbb1 (patch) | |
| tree | cce58465829275f84305c28b6646b1fc4d13ce46 /drivers/staging/lustre/lustre/ldlm/ldlm_lib.c | |
| parent | 5426ba66e1a802c74d11e76454f1151233e43bb1 (diff) | |
| download | op-kernel-dev-6246dab1d0d3a91614eb0360e51d9e98b919dbb1.zip op-kernel-dev-6246dab1d0d3a91614eb0360e51d9e98b919dbb1.tar.gz | |
staging/lustre: replace semaphores with mutexes
It's just optimization. The mutex subsystem is slightly faster
and has better scalability for contended workloads.
Remove the lustre_lock and it's accessor functions l_lock(),
l_unlock(), l_lock_init(), and l_has_lock() since they have
not been used by the code since Lustre 1.6.
Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-on: http://review.whamcloud.com/9294
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4588
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre/lustre/ldlm/ldlm_lib.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/ldlm/ldlm_lib.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c index 42f5f1e..8bb5915 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c @@ -325,7 +325,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg) } init_rwsem(&cli->cl_sem); - sema_init(&cli->cl_mgc_sem, 1); + mutex_init(&cli->cl_mgc_mutex); cli->cl_conn_count = 0; memcpy(server_uuid.uuid, lustre_cfg_buf(lcfg, 2), min_t(unsigned int, LUSTRE_CFG_BUFLEN(lcfg, 2), |
