This patch adds a 'cleanup' function to the object operations structure, which is called during objhash teardown before the final reference is dropped. It provides a way to perform some object cleanup when checkpoint or restart operation is finished, in scenarios where the final reference count cannot be anticipated.
Signed-off-by: Dan Smith <[email protected]> --- checkpoint/objhash.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/checkpoint/objhash.c b/checkpoint/objhash.c index a410346..9750483 100644 --- a/checkpoint/objhash.c +++ b/checkpoint/objhash.c @@ -34,6 +34,7 @@ struct ckpt_obj_ops { int (*ref_users)(void *ptr); int (*checkpoint)(struct ckpt_ctx *ctx, void *ptr); void *(*restore)(struct ckpt_ctx *ctx); + void (*cleanup)(void *ptr); }; struct ckpt_obj { @@ -399,6 +400,8 @@ static void obj_hash_clear(struct ckpt_obj_hash *obj_hash) for (i = 0; i < CKPT_OBJ_HASH_TOTAL; i++) { hlist_for_each_entry_safe(obj, n, t, &h[i], hash) { + if (obj->ops->cleanup) + obj->ops->cleanup(obj->ptr); obj->ops->ref_drop(obj->ptr); kfree(obj); } -- 1.6.2.5 _______________________________________________ Containers mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/containers _______________________________________________ Devel mailing list [email protected] https://openvz.org/mailman/listinfo/devel
