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Commit a8f94707 authored by Jakub Kicinski's avatar Jakub Kicinski
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devlink: restart dump based on devlink instance ids (nested) 

Use xarray id for cases of simple sub-object iteration.
We'll now use the state->instance for the devlink instances
and state->idx for subobject index.

Moving the definition of idx into the inner loop makes sense,
so while at it also move other sub-object local variables into
the loop.
Reviewed-by: default avatarJiri Pirko <jiri@nvidia.com>
Reviewed-by: default avatarJacob Keller <jacob.e.keller@intel.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 731d69a6
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Inline Side-by-side
Showing with 49 additions and 46 deletions
net/devlink/devl_internal.h
View file @ a8f94707
......@@ -131,7 +131,7 @@ struct devlink_nl_dump_state {
#define devlink_dump_for_each_instance_get(msg, state, devlink) \
for (; (devlink = devlinks_xa_find_get(sock_net(msg->sk), \
&state->instance, xa_find)); \
state->instance++)
state->instance++, state->idx = 0)
extern const struct genl_small_ops devlink_nl_ops[56];
......
net/devlink/leftover.c
View file @ a8f94707
......@@ -1223,13 +1223,13 @@ static int devlink_nl_cmd_rate_get_dumpit(struct sk_buff *msg,
struct netlink_callback *cb)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_rate *devlink_rate;
struct devlink *devlink;
unsigned long index;
int idx = 0;
int err = 0;
devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) {
devlink_dump_for_each_instance_get(msg, state, devlink) {
struct devlink_rate *devlink_rate;
int idx = 0;
devl_lock(devlink);
list_for_each_entry(devlink_rate, &devlink->rate_list, list) {
enum devlink_command cmd = DEVLINK_CMD_RATE_NEW;
......@@ -1245,6 +1245,7 @@ static int devlink_nl_cmd_rate_get_dumpit(struct sk_buff *msg,
if (err) {
devl_unlock(devlink);
devlink_put(devlink);
state->idx = idx;
goto out;
}
idx++;
......@@ -1256,7 +1257,6 @@ static int devlink_nl_cmd_rate_get_dumpit(struct sk_buff *msg,
if (err != -EMSGSIZE)
return err;
state->idx = idx;
return msg->len;
}
......@@ -1363,12 +1363,13 @@ static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg,
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink *devlink;
int err;
devlink_dump_for_each_instance_get(msg, state, devlink) {
struct devlink_port *devlink_port;
unsigned long index, port_index;
unsigned long port_index;
int idx = 0;
int err;
devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) {
devl_lock(devlink);
xa_for_each(&devlink->ports, port_index, devlink_port) {
if (idx < state->idx) {
......@@ -1383,6 +1384,7 @@ static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg,
if (err) {
devl_unlock(devlink);
devlink_put(devlink);
state->idx = idx;
goto out;
}
idx++;
......@@ -1391,7 +1393,6 @@ static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg,
devlink_put(devlink);
}
out:
state->idx = idx;
return msg->len;
}
......@@ -2143,11 +2144,11 @@ static int devlink_nl_cmd_linecard_get_dumpit(struct sk_buff *msg,
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_linecard *linecard;
struct devlink *devlink;
unsigned long index;
int idx = 0;
int err;
devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) {
devlink_dump_for_each_instance_get(msg, state, devlink) {
int idx = 0;
mutex_lock(&devlink->linecards_lock);
list_for_each_entry(linecard, &devlink->linecard_list, list) {
if (idx < state->idx) {
......@@ -2165,6 +2166,7 @@ static int devlink_nl_cmd_linecard_get_dumpit(struct sk_buff *msg,
if (err) {
mutex_unlock(&devlink->linecards_lock);
devlink_put(devlink);
state->idx = idx;
goto out;
}
idx++;
......@@ -2173,7 +2175,6 @@ static int devlink_nl_cmd_linecard_get_dumpit(struct sk_buff *msg,
devlink_put(devlink);
}
out:
state->idx = idx;
return msg->len;
}
......@@ -2404,12 +2405,12 @@ static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg,
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink *devlink;
int err;
devlink_dump_for_each_instance_get(msg, state, devlink) {
struct devlink_sb *devlink_sb;
unsigned long index;
int idx = 0;
int err;
devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) {
devl_lock(devlink);
list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
if (idx < state->idx) {
......@@ -2424,6 +2425,7 @@ static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg,
if (err) {
devl_unlock(devlink);
devlink_put(devlink);
state->idx = idx;
goto out;
}
idx++;
......@@ -2432,7 +2434,6 @@ static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg,
devlink_put(devlink);
}
out:
state->idx = idx;
return msg->len;
}
......@@ -5339,13 +5340,13 @@ static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg,
struct netlink_callback *cb)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_param_item *param_item;
struct devlink *devlink;
unsigned long index;
int idx = 0;
int err = 0;
devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) {
devlink_dump_for_each_instance_get(msg, state, devlink) {
struct devlink_param_item *param_item;
int idx = 0;
devl_lock(devlink);
list_for_each_entry(param_item, &devlink->param_list, list) {
if (idx < state->idx) {
......@@ -5362,6 +5363,7 @@ static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg,
} else if (err) {
devl_unlock(devlink);
devlink_put(devlink);
state->idx = idx;
goto out;
}
idx++;
......@@ -5373,7 +5375,6 @@ static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg,
if (err != -EMSGSIZE)
return err;
state->idx = idx;
return msg->len;
}
......@@ -7893,14 +7894,15 @@ devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg,
struct netlink_callback *cb)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink *devlink;
int err;
devlink_dump_for_each_instance_get(msg, state, devlink) {
struct devlink_health_reporter *reporter;
unsigned long index, port_index;
struct devlink_port *port;
struct devlink *devlink;
unsigned long port_index;
int idx = 0;
int err;
devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) {
mutex_lock(&devlink->reporters_lock);
list_for_each_entry(reporter, &devlink->reporter_list,
list) {
......@@ -7915,6 +7917,7 @@ devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg,
if (err) {
mutex_unlock(&devlink->reporters_lock);
devlink_put(devlink);
state->idx = idx;
goto out;
}
idx++;
......@@ -7938,6 +7941,7 @@ devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg,
mutex_unlock(&port->reporters_lock);
devl_unlock(devlink);
devlink_put(devlink);
state->idx = idx;
goto out;
}
idx++;
......@@ -7948,7 +7952,6 @@ devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg,
devlink_put(devlink);
}
out:
state->idx = idx;
return msg->len;
}
......@@ -8474,13 +8477,13 @@ static int devlink_nl_cmd_trap_get_dumpit(struct sk_buff *msg,
struct netlink_callback *cb)
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
struct devlink_trap_item *trap_item;
struct devlink *devlink;
unsigned long index;
int idx = 0;
int err;
devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) {
devlink_dump_for_each_instance_get(msg, state, devlink) {
struct devlink_trap_item *trap_item;
int idx = 0;
devl_lock(devlink);
list_for_each_entry(trap_item, &devlink->trap_list, list) {
if (idx < state->idx) {
......@@ -8495,6 +8498,7 @@ static int devlink_nl_cmd_trap_get_dumpit(struct sk_buff *msg,
if (err) {
devl_unlock(devlink);
devlink_put(devlink);
state->idx = idx;
goto out;
}
idx++;
......@@ -8503,7 +8507,6 @@ static int devlink_nl_cmd_trap_get_dumpit(struct sk_buff *msg,
devlink_put(devlink);
}
out:
state->idx = idx;
return msg->len;
}
......@@ -8690,14 +8693,14 @@ static int devlink_nl_cmd_trap_group_get_dumpit(struct sk_buff *msg,
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
enum devlink_command cmd = DEVLINK_CMD_TRAP_GROUP_NEW;
struct devlink_trap_group_item *group_item;
u32 portid = NETLINK_CB(cb->skb).portid;
struct devlink *devlink;
unsigned long index;
int idx = 0;
int err;
devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) {
devlink_dump_for_each_instance_get(msg, state, devlink) {
struct devlink_trap_group_item *group_item;
int idx = 0;
devl_lock(devlink);
list_for_each_entry(group_item, &devlink->trap_group_list,
list) {
......@@ -8713,6 +8716,7 @@ static int devlink_nl_cmd_trap_group_get_dumpit(struct sk_buff *msg,
if (err) {
devl_unlock(devlink);
devlink_put(devlink);
state->idx = idx;
goto out;
}
idx++;
......@@ -8721,7 +8725,6 @@ static int devlink_nl_cmd_trap_group_get_dumpit(struct sk_buff *msg,
devlink_put(devlink);
}
out:
state->idx = idx;
return msg->len;
}
......@@ -8994,14 +8997,14 @@ static int devlink_nl_cmd_trap_policer_get_dumpit(struct sk_buff *msg,
{
struct devlink_nl_dump_state *state = devlink_dump_state(cb);
enum devlink_command cmd = DEVLINK_CMD_TRAP_POLICER_NEW;
struct devlink_trap_policer_item *policer_item;
u32 portid = NETLINK_CB(cb->skb).portid;
struct devlink *devlink;
unsigned long index;
int idx = 0;
int err;
devlinks_xa_for_each_registered_get(sock_net(msg->sk), index, devlink) {
devlink_dump_for_each_instance_get(msg, state, devlink) {
struct devlink_trap_policer_item *policer_item;
int idx = 0;
devl_lock(devlink);
list_for_each_entry(policer_item, &devlink->trap_policer_list,
list) {
......@@ -9017,6 +9020,7 @@ static int devlink_nl_cmd_trap_policer_get_dumpit(struct sk_buff *msg,
if (err) {
devl_unlock(devlink);
devlink_put(devlink);
state->idx = idx;
goto out;
}
idx++;
......@@ -9025,7 +9029,6 @@ static int devlink_nl_cmd_trap_policer_get_dumpit(struct sk_buff *msg,
devlink_put(devlink);
}
out:
state->idx = idx;
return msg->len;
}
......
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