diff options
| author | Gregoire Pichon <gregoire.pichon@bull.net> | 2016-11-10 10:51:13 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-15 11:01:17 +0100 |
| commit | 7cb15d044867c83b27ed434fe7002797846002c0 (patch) | |
| tree | 0c929206e606c24ecf14362d44219be4fb6676b6 /drivers/staging/lustre/lustre/include/obd.h | |
| parent | 0ffaa9c8eb2faab0cb2dbbe46a83ec5f96df0310 (diff) | |
| download | op-kernel-dev-7cb15d044867c83b27ed434fe7002797846002c0.zip op-kernel-dev-7cb15d044867c83b27ed434fe7002797846002c0.tar.gz | |
staging: lustre: mdc: manage number of modify RPCs in flight
This patch is the main client part of a new feature that supports
multiple modify metadata RPCs in parallel. Its goal is to improve
metadata operations performance of a single client, while maintening
the consistency of MDT reply reconstruction and MDT recovery
mechanisms.
It allows to manage the number of modify RPCs in flight within
the client obd structure and to assign a virtual index (the tag) to
each modify RPC to help server side cleaning of reply data.
The mdc component uses this feature to send multiple modify RPCs
in parallel.
Signed-off-by: Gregoire Pichon <gregoire.pichon@bull.net>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5319
Reviewed-on: http://review.whamcloud.com/14374
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@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>
Diffstat (limited to 'drivers/staging/lustre/lustre/include/obd.h')
| -rw-r--r-- | drivers/staging/lustre/lustre/include/obd.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index 0f6e8f6..60efaaa 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -263,14 +263,17 @@ struct client_obd { wait_queue_head_t cl_destroy_waitq; struct mdc_rpc_lock *cl_rpc_lock; - struct mdc_rpc_lock *cl_close_lock; /* modify rpcs in flight * currently used for metadata only */ spinlock_t cl_mod_rpcs_lock; u16 cl_max_mod_rpcs_in_flight; - + u16 cl_mod_rpcs_in_flight; + u16 cl_close_rpcs_in_flight; + wait_queue_head_t cl_mod_rpcs_waitq; + unsigned long *cl_mod_tag_bitmap; + struct obd_histogram cl_mod_rpcs_hist; /* mgc datastruct */ atomic_t cl_mgc_refcount; |
