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James Simmons: Should these tunable changes be made to gnilnd in a separate patch set?
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</div>
<div class="">Reviewed-by: Doug Oucharek <<a href="mailto:dougso@me.com" class="">dougso@me.com</a>></div>
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</div>
<div class="">Doug</div>
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<div>
<blockquote type="cite" class="">
<div class="">On Sep 6, 2018, at 5:49 PM, NeilBrown <<a href="mailto:neilb@suse.com" class="">neilb@suse.com</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class="">Instead of a pointer, embed the data struct.<br class="">
Also other related changes.<br class="">
<br class="">
This is part of<br class="">
   8cbb8cd3e771e7f7e0f99cafc19fad32770dc015<br class="">
      LU-7734 lnet: Multi-Rail local NI split<br class="">
<br class="">
Signed-off-by: NeilBrown <<a href="mailto:neilb@suse.com" class="">neilb@suse.com</a>><br class="">
---<br class="">
.../staging/lustre/include/linux/lnet/lib-types.h  |    6 ++++<br class="">
.../lustre/include/uapi/linux/lnet/lnet-dlc.h      |   10 +++++--<br class="">
.../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c    |    2 +<br class="">
.../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h    |    6 ++--<br class="">
.../staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c |    8 +++---<br class="">
.../lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c  |   13 +++-------<br class="">
drivers/staging/lustre/lnet/lnet/api-ni.c          |   27 +++++++++-----------<br class="">
drivers/staging/lustre/lnet/lnet/config.c          |    2 -<br class="">
8 files changed, 36 insertions(+), 38 deletions(-)<br class="">
<br class="">
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-types.h b/drivers/staging/lustre/include/linux/lnet/lib-types.h<br class="">
index e170eb07a5bf..c5e3363de727 100644<br class="">
--- a/drivers/staging/lustre/include/linux/lnet/lib-types.h<br class="">
+++ b/drivers/staging/lustre/include/linux/lnet/lib-types.h<br class="">
@@ -302,7 +302,11 @@ struct lnet_ni {<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_ni_status<span class="Apple-tab-span" style="white-space:pre">
</span>*ni_status;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>/* per NI LND tunables */<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>struct lnet_ioctl_config_lnd_tunables *ni_lnd_tunables;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>struct lnet_lnd_tunables ni_lnd_tunables;<br class="">
+<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>/* lnd tunables set explicitly */<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>bool ni_lnd_tunables_set;<br class="">
+<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>/*<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>* equivalent interfaces to use<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>* This is an array because socklnd bonding can still be configured<br class="">
diff --git a/drivers/staging/lustre/include/uapi/linux/lnet/lnet-dlc.h b/drivers/staging/lustre/include/uapi/linux/lnet/lnet-dlc.h<br class="">
index a8eb3b8f9fd7..ac29f9d24d5d 100644<br class="">
--- a/drivers/staging/lustre/include/uapi/linux/lnet/lnet-dlc.h<br class="">
+++ b/drivers/staging/lustre/include/uapi/linux/lnet/lnet-dlc.h<br class="">
@@ -57,11 +57,15 @@ struct lnet_ioctl_config_o2iblnd_tunables {<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>__u16 pad;<br class="">
};<br class="">
<br class="">
+struct lnet_lnd_tunables {<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>union {<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_ioctl_config_o2iblnd_tunables lnd_o2ib;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>} lnd_tun_u;<br class="">
+};<br class="">
+<br class="">
struct lnet_ioctl_config_lnd_tunables {<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_ioctl_config_lnd_cmn_tunables lt_cmn;<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>union {<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_ioctl_config_o2iblnd_tunables lt_o2ib;<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>} lt_tun_u;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>struct lnet_lnd_tunables lt_tun;<br class="">
};<br class="">
<br class="">
struct lnet_ioctl_net_config {<br class="">
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c<br class="">
index 5e1592b398c1..ade566d20c69 100644<br class="">
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c<br class="">
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c<br class="">
@@ -2122,7 +2122,7 @@ static int kiblnd_net_init_pools(struct kib_net *net, struct lnet_ni *ni,<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>int rc;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>int i;<br class="">
<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>if (tunables->lnd_fmr_pool_size < *kiblnd_tunables.kib_ntx / 4) {<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>CERROR("Can't set fmr pool size (%d) < ntx / 4(%d)\n",<br class="">
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h<br class="">
index 42dc15cef194..522eb150d9a6 100644<br class="">
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h<br class="">
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h<br class="">
@@ -608,7 +608,7 @@ kiblnd_cfg_rdma_frags(struct lnet_ni *ni)<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_ioctl_config_o2iblnd_tunables *tunables;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>int mod;<br class="">
<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>mod = tunables->lnd_map_on_demand;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>return mod ? mod : IBLND_MAX_RDMA_FRAGS >> IBLND_FRAG_SHIFT;<br class="">
}<br class="">
@@ -627,7 +627,7 @@ kiblnd_concurrent_sends(int version, struct lnet_ni *ni)<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_ioctl_config_o2iblnd_tunables *tunables;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>int concurrent_sends;<br class="">
<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>concurrent_sends = tunables->lnd_concurrent_sends;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>if (version == IBLND_MSG_VERSION_1) {<br class="">
@@ -777,7 +777,7 @@ kiblnd_need_noop(struct kib_conn *conn)<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_ni *ni = conn->ibc_peer->ibp_ni;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>LASSERT(conn->ibc_state >= IBLND_CONN_ESTABLISHED);<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>if (conn->ibc_outstanding_credits <<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>   IBLND_CREDITS_HIGHWATER(tunables, conn->ibc_version) &&<br class="">
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c<br class="">
index a8d2b4911dab..c266940cb2ae 100644<br class="">
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c<br class="">
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c<br class="">
@@ -1452,7 +1452,7 @@ kiblnd_launch_tx(struct lnet_ni *ni, struct kib_tx *tx, lnet_nid_t nid)<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>/* Brand new peer */<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>LASSERT(!peer->ibp_connecting);<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &peer->ibp_ni->ni_lnd_tunables->lt_tun_u.lt_o2ib;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &peer->ibp_ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>peer->ibp_connecting = tunables->lnd_conns_per_peer;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>/* always called with a ref on ni, which prevents ni being shutdown */<br class="">
@@ -2592,14 +2592,14 @@ kiblnd_check_reconnect(struct kib_conn *conn, int version,<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>break;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>case IBLND_REJECT_RDMA_FRAGS: {<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_ioctl_config_lnd_tunables *tunables;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_ioctl_config_o2iblnd_tunables *tunables;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>if (!cp) {<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>reason = "can't negotiate max frags";<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>goto out;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>}<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>tunables = peer->ibp_ni->ni_lnd_tunables;<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>if (!tunables->lt_tun_u.lt_o2ib.lnd_map_on_demand) {<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>tunables = &peer->ibp_ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>if (!tunables->lnd_map_on_demand) {<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>reason = "map_on_demand must be enabled";<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>goto out;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>}<br class="">
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c<br class="">
index a1aca4dda38f..5117594f38fb 100644<br class="">
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c<br class="">
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c<br class="">
@@ -185,16 +185,11 @@ int kiblnd_tunables_setup(struct lnet_ni *ni)<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>* if there was no tunables specified, setup the tunables to be<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>* defaulted<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>*/<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>if (!ni->ni_lnd_tunables) {<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>ni->ni_lnd_tunables = kzalloc(sizeof(*ni->ni_lnd_tunables),<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>     GFP_NOFS);<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>if (!ni->ni_lnd_tunables)<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>return -ENOMEM;<br class="">
-<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>memcpy(&ni->ni_lnd_tunables->lt_tun_u.lt_o2ib,<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>if (!ni->ni_lnd_tunables_set)<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>memcpy(&ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib,<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>      &default_tunables, sizeof(*tunables));<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>}<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib;<br class="">
+<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>tunables = &ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>/* Current API version */<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>tunables->lnd_version = 0;<br class="">
diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c<br class="">
index 0896e75bc3d7..c944fbb155c8 100644<br class="">
--- a/drivers/staging/lustre/lnet/lnet/api-ni.c<br class="">
+++ b/drivers/staging/lustre/lnet/lnet/api-ni.c<br class="">
@@ -1198,6 +1198,7 @@ static int<br class="">
lnet_startup_lndni(struct lnet_ni *ni, struct lnet_ioctl_config_data *conf)<br class="">
{<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_ioctl_config_lnd_tunables *lnd_tunables = NULL;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>struct lnet_lnd_tunables *tun = NULL;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>int rc = -EINVAL;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>int lnd_type;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>struct lnet_lnd *lnd;<br class="">
@@ -1250,19 +1251,15 @@ lnet_startup_lndni(struct lnet_ni *ni, struct lnet_ioctl_config_data *conf)<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>ni->ni_net->net_lnd = lnd;<br class="">
<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>if (conf && conf->cfg_hdr.ioc_len > sizeof(*conf))<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>if (conf && conf->cfg_hdr.ioc_len > sizeof(*conf)) {<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>lnd_tunables = (struct lnet_ioctl_config_lnd_tunables *)conf->cfg_bulk;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>tun = &lnd_tunables->lt_tun;<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>}<br class="">
<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>if (lnd_tunables) {<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>ni->ni_lnd_tunables = kzalloc(sizeof(*ni->ni_lnd_tunables),<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>     GFP_NOFS);<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>if (!ni->ni_lnd_tunables) {<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>mutex_unlock(&the_lnet.ln_lnd_mutex);<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>rc = -ENOMEM;<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>goto failed0;<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>}<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>memcpy(ni->ni_lnd_tunables, lnd_tunables,<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>      sizeof(*ni->ni_lnd_tunables));<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>if (tun) {<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>memcpy(&ni->ni_lnd_tunables, tun,<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>      sizeof(*tun));<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>ni->ni_lnd_tunables_set = true;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>}<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>/*<br class="">
@@ -1702,15 +1699,15 @@ lnet_fill_ni_info(struct lnet_ni *ni, struct lnet_ioctl_config_data *config)<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>tunable_size = config->cfg_hdr.ioc_len - min_size;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>/* Don't copy to much data to user space */<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>min_size = min(tunable_size, sizeof(*ni->ni_lnd_tunables));<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>min_size = min(tunable_size, sizeof(ni->ni_lnd_tunables));<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>lnd_cfg = (struct lnet_ioctl_config_lnd_tunables *)net_config->cfg_bulk;<br class="">
<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>if (ni->ni_lnd_tunables && lnd_cfg && min_size) {<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>memcpy(lnd_cfg, ni->ni_lnd_tunables, min_size);<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span>if (lnd_cfg && min_size) {<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>memcpy(&lnd_cfg->lt_tun, &ni->ni_lnd_tunables, min_size);<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>config->cfg_config_u.cfg_net.net_interface_count = 1;<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>/* Tell user land that kernel side has less data */<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>if (tunable_size > sizeof(*ni->ni_lnd_tunables)) {<br class="">
+<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"></span>if (tunable_size > sizeof(ni->ni_lnd_tunables)) {<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>min_size = tunable_size - sizeof(ni->ni_lnd_tunables);<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>config->cfg_hdr.ioc_len -= min_size;<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>}<br class="">
diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c<br class="">
index 86a53854e427..5646feeb433e 100644<br class="">
--- a/drivers/staging/lustre/lnet/lnet/config.c<br class="">
+++ b/drivers/staging/lustre/lnet/lnet/config.c<br class="">
@@ -105,8 +105,6 @@ lnet_ni_free(struct lnet_ni *ni)<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>if (ni->ni_cpts)<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>cfs_expr_list_values_free(ni->ni_cpts, ni->ni_ncpts);<br class="">
<br class="">
-<span class="Apple-tab-span" style="white-space:pre"> </span>kfree(ni->ni_lnd_tunables);<br class="">
-<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span>for (i = 0; i < LNET_MAX_INTERFACES && ni->ni_interfaces[i]; i++)<br class="">
<span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-tab-span" style="white-space:pre"></span>kfree(ni->ni_interfaces[i]);<br class="">
<br class="">
<br class="">
<br class="">
</div>
</div>
</blockquote>
</div>
<br class="">
</div>
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