[LU-962] Add a feature to run a callback in ptlrpcd context

• Status: Closed
• Project: Lustre
• Fix Version/s: Lustre 2.2.0
• Type: Improvement
• Priority: Minor
• Reporter: Jinshan Xiong (Inactive)
• Assignee: Jinshan Xiong (Inactive)
• Resolution: Fixed

Description

We need this functionality for async OSC RPC to support LU-884.

This is something like fake req, but it should be more well encapsulated. The interfaces would be like:

1. void *ptlrpc_allocate_work(struct obd_import *imp, int (*cb)(const struct lu_env *, void *), void *cbdata);
Initialize a callback data; handler will store a ptlrpc_request but caller shouldn't know this detail;

2. int ptlrpc_run_work(void *handler);
run the callback in ptlrpcd context if the request(handler) is NOT already in ptlrpcd list;

3. void ptlrpc_destroy_work(void *handler);

Comments

[Jinshan Xiong (Inactive)]

patch is at: http://review.whamcloud.com/#change,1917

[Build Master (Inactive)]

Integrated in lustre-master » x86_64,client,el5,ofa #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = FAILURE
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/ptlrpcd.c
• lustre/include/lustre_net.h
• lustre/ptlrpc/client.c

[Build Master (Inactive)]

Integrated in lustre-master » x86_64,server,el5,ofa #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = FAILURE
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/ptlrpcd.c
• lustre/ptlrpc/client.c
• lustre/include/lustre_net.h

[Build Master (Inactive)]

Integrated in lustre-master » x86_64,client,el5,inkernel #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = SUCCESS
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/client.c
• lustre/include/lustre_net.h
• lustre/ptlrpc/ptlrpcd.c

[Build Master (Inactive)]

Integrated in lustre-master » i686,server,el5,ofa #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = FAILURE
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/client.c
• lustre/include/lustre_net.h
• lustre/ptlrpc/ptlrpcd.c

[Build Master (Inactive)]

Integrated in lustre-master » i686,client,el6,inkernel #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = SUCCESS
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/client.c
• lustre/include/lustre_net.h
• lustre/ptlrpc/ptlrpcd.c

[Build Master (Inactive)]

Integrated in lustre-master » x86_64,server,el6,inkernel #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = SUCCESS
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/ptlrpcd.c
• lustre/include/lustre_net.h
• lustre/ptlrpc/client.c

[Build Master (Inactive)]

Integrated in lustre-master » x86_64,client,sles11,inkernel #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = SUCCESS
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/client.c
• lustre/ptlrpc/ptlrpcd.c
• lustre/include/lustre_net.h

[Build Master (Inactive)]

Integrated in lustre-master » x86_64,client,el6,inkernel #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = SUCCESS
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/include/lustre_net.h
• lustre/ptlrpc/ptlrpcd.c
• lustre/ptlrpc/client.c

[Build Master (Inactive)]

Integrated in lustre-master » x86_64,client,ubuntu1004,inkernel #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = SUCCESS
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/ptlrpcd.c
• lustre/ptlrpc/client.c
• lustre/include/lustre_net.h

[Build Master (Inactive)]

Integrated in lustre-master » x86_64,server,el5,inkernel #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = SUCCESS
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/include/lustre_net.h
• lustre/ptlrpc/client.c
• lustre/ptlrpc/ptlrpcd.c

[Build Master (Inactive)]

Integrated in lustre-master » i686,server,el5,inkernel #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = SUCCESS
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/client.c
• lustre/ptlrpc/ptlrpcd.c
• lustre/include/lustre_net.h

[Build Master (Inactive)]

Integrated in lustre-master » i686,server,el6,inkernel #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = SUCCESS
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/ptlrpcd.c
• lustre/include/lustre_net.h
• lustre/ptlrpc/client.c

[Build Master (Inactive)]

Integrated in lustre-master » i686,client,el5,inkernel #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = SUCCESS
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/ptlrpcd.c
• lustre/include/lustre_net.h
• lustre/ptlrpc/client.c

[Build Master (Inactive)]

Integrated in lustre-master » i686,client,el5,ofa #416
LU-962 ptlrpc: feature to run callback in ptlrpcd context (Revision 2064c2a7e616b172f72462884b23d899bfc040ff)

Result = FAILURE
Oleg Drokin : 2064c2a7e616b172f72462884b23d899bfc040ff
Files :

• lustre/ptlrpc/client.c
• lustre/include/lustre_net.h
• lustre/ptlrpc/ptlrpcd.c

[James A Simmons]

Looks like this work was completed long ago