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authorWang Di <di.wang@intel.com>2016-04-27 18:20:55 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-04-28 21:51:58 -0700
commit7f937beb0ad24bd3e14dd943c04130a60ffcd0b9 (patch)
treee7e1ea5606459cc929b65941b73482c4dcd31ed8
parentac7af34e6776c09fda26bc224c53a3870cd6af89 (diff)
staging: lustre: obdclass: add LCT_SERVER_SESSION for server session
Add LCT_SERVER_SESSION for server session, and separate the server session flag from LCT_SESSION, so to avoid allocating session info for client stack for each server request, if client and server are on the same node. Signed-off-by: Wang Di <di.wang@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3806 Reviewed-on: http://review.whamcloud.com/7412 Reviewed-by: John L. Hammond <john.hammond@intel.com> Reviewed-by: Mike Pershin <mike.pershin@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>
-rw-r--r--drivers/staging/lustre/lustre/include/lu_object.h4
-rw-r--r--drivers/staging/lustre/lustre/include/obd_class.h2
-rw-r--r--drivers/staging/lustre/lustre/ptlrpc/service.c3
3 files changed, 7 insertions, 2 deletions
diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h
index b5b0c81caff2..a27e76f0d687 100644
--- a/drivers/staging/lustre/lustre/include/lu_object.h
+++ b/drivers/staging/lustre/lustre/include/lu_object.h
@@ -1006,6 +1006,10 @@ enum lu_context_tag {
*/
LCT_LOCAL = 1 << 7,
/**
+ * session for server thread
+ **/
+ LCT_SERVER_SESSION = BIT(8),
+ /**
* Set when at least one of keys, having values in this context has
* non-NULL lu_context_key::lct_exit() method. This is used to
* optimize lu_context_exit() call.
diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h
index 40f7a2374865..32863bcb30b9 100644
--- a/drivers/staging/lustre/lustre/include/obd_class.h
+++ b/drivers/staging/lustre/lustre/include/obd_class.h
@@ -477,7 +477,7 @@ static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg)
struct lu_context session_ctx;
struct lu_env env;
- lu_context_init(&session_ctx, LCT_SESSION);
+ lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION);
session_ctx.lc_thread = NULL;
lu_context_enter(&session_ctx);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c
index 1bbd1d39ccf8..fc2632ff812e 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/service.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/service.c
@@ -1649,7 +1649,8 @@ ptlrpc_server_handle_request(struct ptlrpc_service_part *svcpt,
at_get(&svcpt->scp_at_estimate));
}
- rc = lu_context_init(&request->rq_session, LCT_SESSION | LCT_NOREF);
+ rc = lu_context_init(&request->rq_session, LCT_SERVER_SESSION |
+ LCT_NOREF);
if (rc) {
CERROR("Failure to initialize session: %d\n", rc);
goto out_req;