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authorJacob Keller2020-03-26 11:37:09 -0700
committerDavid S. Miller2020-03-26 19:39:26 -0700
commita0a09f6bb2c1501e24246edf2a7d42558d263b2b (patch)
tree103b9278bb7f89a40aa2ecde3251eb7b1c0eb77b /net/core
parente8937681797c9af491c8a1e362a9db4f4aa1f471 (diff)
devlink: convert snapshot destructor callback to region op
It does not makes sense that two snapshots for a given region would use different destructors. Simplify snapshot creation by adding a .destructor op for regions. This operation will replace the data_destructor for the snapshot creation, and makes snapshot creation easier. Noticed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/devlink.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c
index f793ba6c0705..e8508f77fdcd 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -354,7 +354,6 @@ struct devlink_region {
struct devlink_snapshot {
struct list_head list;
struct devlink_region *region;
- devlink_snapshot_data_dest_t *data_destructor;
u8 *data;
u32 id;
};
@@ -3775,7 +3774,7 @@ static void devlink_region_snapshot_del(struct devlink_region *region,
devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL);
region->cur_snapshots--;
list_del(&snapshot->list);
- (*snapshot->data_destructor)(snapshot->data);
+ region->ops->destructor(snapshot->data);
kfree(snapshot);
}
@@ -7660,6 +7659,9 @@ devlink_region_create(struct devlink *devlink,
struct devlink_region *region;
int err = 0;
+ if (WARN_ON(!ops) || WARN_ON(!ops->destructor))
+ return ERR_PTR(-EINVAL);
+
mutex_lock(&devlink->lock);
if (devlink_region_get_by_name(devlink, ops->name)) {
@@ -7746,11 +7748,9 @@ EXPORT_SYMBOL_GPL(devlink_region_snapshot_id_get);
* @region: devlink region of the snapshot
* @data: snapshot data
* @snapshot_id: snapshot id to be created
- * @data_destructor: pointer to destructor function to free data
*/
int devlink_region_snapshot_create(struct devlink_region *region,
- u8 *data, u32 snapshot_id,
- devlink_snapshot_data_dest_t *data_destructor)
+ u8 *data, u32 snapshot_id)
{
struct devlink *devlink = region->devlink;
struct devlink_snapshot *snapshot;
@@ -7778,7 +7778,6 @@ int devlink_region_snapshot_create(struct devlink_region *region,
snapshot->id = snapshot_id;
snapshot->region = region;
snapshot->data = data;
- snapshot->data_destructor = data_destructor;
list_add_tail(&snapshot->list, &region->snapshot_list);