diff options
| author | NeilBrown <neilb@suse.com> | 2018-03-02 10:31:25 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-06 04:20:23 -0800 |
| commit | 26f7a294e5ecd46856cb9f5b718e995f1ec46779 (patch) | |
| tree | cc399900348b213709dbf8915791c8e49906b2fa /drivers/staging/lustre/lustre/ldlm | |
| parent | 165020462d26d6925cbd2d25dfbd4ff1a8fba103 (diff) | |
| download | op-kernel-dev-26f7a294e5ecd46856cb9f5b718e995f1ec46779.zip op-kernel-dev-26f7a294e5ecd46856cb9f5b718e995f1ec46779.tar.gz | |
staging: lustre: ptlrpc: move thread creation out of module initialization
When the ptlrpc module is loaded, it starts the pinger thread and
calls LNetNIInit which starts various threads.
We don't need these threads until the module is actually being
used, such as when a lustre filesystem is mounted.
So move the thread creation into new ptlrpc_inc_ref() (modeled on
ptlrpcd_inc_ref()), and call that when needed, such as at mount time.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre/lustre/ldlm')
| -rw-r--r-- | drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c index 58913e6..c772c68 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c @@ -869,6 +869,10 @@ int ldlm_get_ref(void) { int rc = 0; + rc = ptlrpc_inc_ref(); + if (rc) + return rc; + mutex_lock(&ldlm_ref_mutex); if (++ldlm_refcount == 1) { rc = ldlm_setup(); @@ -877,14 +881,18 @@ int ldlm_get_ref(void) } mutex_unlock(&ldlm_ref_mutex); + if (rc) + ptlrpc_dec_ref(); + return rc; } void ldlm_put_ref(void) { + int rc = 0; mutex_lock(&ldlm_ref_mutex); if (ldlm_refcount == 1) { - int rc = ldlm_cleanup(); + rc = ldlm_cleanup(); if (rc) CERROR("ldlm_cleanup failed: %d\n", rc); @@ -894,6 +902,8 @@ void ldlm_put_ref(void) ldlm_refcount--; } mutex_unlock(&ldlm_ref_mutex); + if (!rc) + ptlrpc_dec_ref(); } static ssize_t cancel_unused_locks_before_replay_show(struct kobject *kobj, |
