diff options
author | Mark Zhang <markzhang@nvidia.com> | 2021-10-08 15:24:30 +0300 |
---|---|---|
committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-10-12 12:48:04 -0300 |
commit | 0a0800ce2a6a4d58d73f712f1c0780974877babf (patch) | |
tree | 0782d5e7550354223700a4625637bc48d9171c68 /drivers/infiniband | |
parent | 13f30b0fa0a9fa4f713edbb262f2e451886ce242 (diff) | |
download | linux-0a0800ce2a6a4d58d73f712f1c0780974877babf.tar.bz2 |
RDMA/core: Add a helper API rdma_free_hw_stats_struct
Add a new API rdma_free_hw_stats_struct to pair with
rdma_alloc_hw_stats_struct (which is also de-inlined).
This will be useful when there are more alloc/free works in following
patches.
Link: https://lore.kernel.org/r/20211008122439.166063-5-markzhang@nvidia.com
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r-- | drivers/infiniband/core/counters.c | 8 | ||||
-rw-r--r-- | drivers/infiniband/core/sysfs.c | 8 | ||||
-rw-r--r-- | drivers/infiniband/core/verbs.c | 35 |
3 files changed, 43 insertions, 8 deletions
diff --git a/drivers/infiniband/core/counters.c b/drivers/infiniband/core/counters.c index df9e6c5e4ddf..331cd29f0d61 100644 --- a/drivers/infiniband/core/counters.c +++ b/drivers/infiniband/core/counters.c @@ -165,7 +165,7 @@ static struct rdma_counter *alloc_and_bind(struct ib_device *dev, u32 port, return counter; err_mode: - kfree(counter->stats); + rdma_free_hw_stats_struct(counter->stats); err_stats: rdma_restrack_put(&counter->res); kfree(counter); @@ -186,7 +186,7 @@ static void rdma_counter_free(struct rdma_counter *counter) mutex_unlock(&port_counter->lock); rdma_restrack_del(&counter->res); - kfree(counter->stats); + rdma_free_hw_stats_struct(counter->stats); kfree(counter); } @@ -618,7 +618,7 @@ void rdma_counter_init(struct ib_device *dev) fail: for (i = port; i >= rdma_start_port(dev); i--) { port_counter = &dev->port_data[port].port_counter; - kfree(port_counter->hstats); + rdma_free_hw_stats_struct(port_counter->hstats); port_counter->hstats = NULL; mutex_destroy(&port_counter->lock); } @@ -631,7 +631,7 @@ void rdma_counter_release(struct ib_device *dev) rdma_for_each_port(dev, port) { port_counter = &dev->port_data[port].port_counter; - kfree(port_counter->hstats); + rdma_free_hw_stats_struct(port_counter->hstats); mutex_destroy(&port_counter->lock); } } diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index c3663cfdcd52..8d831d4fd2ad 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -755,7 +755,7 @@ static void ib_port_release(struct kobject *kobj) for (i = 0; i != ARRAY_SIZE(port->groups); i++) kfree(port->groups[i].attrs); if (port->hw_stats_data) - kfree(port->hw_stats_data->stats); + rdma_free_hw_stats_struct(port->hw_stats_data->stats); kfree(port->hw_stats_data); kfree(port); } @@ -919,14 +919,14 @@ alloc_hw_stats_device(struct ib_device *ibdev) err_free_data: kfree(data); err_free_stats: - kfree(stats); + rdma_free_hw_stats_struct(stats); return ERR_PTR(-ENOMEM); } void ib_device_release_hw_stats(struct hw_stats_device_data *data) { kfree(data->group.attrs); - kfree(data->stats); + rdma_free_hw_stats_struct(data->stats); kfree(data); } @@ -1018,7 +1018,7 @@ alloc_hw_stats_port(struct ib_port *port, struct attribute_group *group) err_free_data: kfree(data); err_free_stats: - kfree(stats); + rdma_free_hw_stats_struct(stats); return ERR_PTR(-ENOMEM); } diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 89a2b21976d6..8e72290d6b38 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -2976,3 +2976,38 @@ bool __rdma_block_iter_next(struct ib_block_iter *biter) return true; } EXPORT_SYMBOL(__rdma_block_iter_next); + +/** + * rdma_alloc_hw_stats_struct - Helper function to allocate dynamic struct + * for the drivers. + * @descs: array of static descriptors + * @num_counters: number of elements in array + * @lifespan: milliseconds between updates + */ +struct rdma_hw_stats *rdma_alloc_hw_stats_struct( + const struct rdma_stat_desc *descs, int num_counters, + unsigned long lifespan) +{ + struct rdma_hw_stats *stats; + + stats = kzalloc(struct_size(stats, value, num_counters), GFP_KERNEL); + if (!stats) + return NULL; + + stats->descs = descs; + stats->num_counters = num_counters; + stats->lifespan = msecs_to_jiffies(lifespan); + + return stats; +} +EXPORT_SYMBOL(rdma_alloc_hw_stats_struct); + +/** + * rdma_free_hw_stats_struct - Helper function to release rdma_hw_stats + * @stats: statistics to release + */ +void rdma_free_hw_stats_struct(struct rdma_hw_stats *stats) +{ + kfree(stats); +} +EXPORT_SYMBOL(rdma_free_hw_stats_struct); |