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staging/lustre/ptlrpc: better error handling in ptlrpcd_start

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This is only part of the original Lustre tree commit. It cleans up
ptlrpcd_start error handling a bit.

Lustre-change: http://review.whamcloud.com/6139
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3204
Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Signed-off-by: Ned Bass <bass6@llnl.gov>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dmitry Eremin 2013-12-03 21:58:53 +08:00 committed by Greg Kroah-Hartman
parent 645ae203b9
commit 87c7d31570
1 changed files with 21 additions and 21 deletions
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26
drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
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@ -600,7 +600,6 @@ static int ptlrpcd_bind(int index, int max)
int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc)
{
int rc;
int env = 0;
/*
* Do not allow start second thread for one pc.
@ -619,6 +618,7 @@ int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc)
pc->pc_set = ptlrpc_prep_set();
if (pc->pc_set == NULL)
GOTO(out, rc = -ENOMEM);
/*
* So far only "client" ptlrpcd uses an environment. In the future,
* ptlrpcd thread (or a thread-set) has to be given an argument,
@ -626,27 +626,28 @@ int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc)
*/
rc = lu_context_init(&pc->pc_env.le_ctx, LCT_CL_THREAD|LCT_REMEMBER);
if (rc != 0)
GOTO(out, rc);
GOTO(out_set, rc);
env = 1;
{
struct task_struct *task;
if (index >= 0) {
rc = ptlrpcd_bind(index, max);
if (rc < 0)
GOTO(out, rc);
GOTO(out_env, rc);
}
task = kthread_run(ptlrpcd, pc, "%s", pc->pc_name);
task = kthread_run(ptlrpcd, pc, pc->pc_name);
if (IS_ERR(task))
GOTO(out, rc = PTR_ERR(task));
GOTO(out_env, rc = PTR_ERR(task));
rc = 0;
wait_for_completion(&pc->pc_starting);
}
out:
if (rc) {
return 0;
out_env:
lu_context_fini(&pc->pc_env.le_ctx);
out_set:
if (pc->pc_set != NULL) {
struct ptlrpc_request_set *set = pc->pc_set;
@ -655,11 +656,10 @@ int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc)
spin_unlock(&pc->pc_lock);
ptlrpc_set_destroy(set);
}
if (env != 0)
lu_context_fini(&pc->pc_env.le_ctx);
clear_bit(LIOD_BIND, &pc->pc_flags);
out:
clear_bit(LIOD_START, &pc->pc_flags);
}
return rc;
}