From: Liu, Yi L yi.l.liu@intel.com Sent: Thursday, September 12, 2024 9:17 PM
There is no helpers for user to check if a given ID is allocated or not, neither a helper to loop all the allocated IDs in an IDA and do something for cleanup. With the two needs, a helper to get the lowest allocated ID of a range and two variants based on it.
Caller can check if a given ID is allocated or not by:
bool ida_exists(struct ida *ida, unsigned int id)
Caller can iterate all allocated IDs by:
int id; while ((id = ida_find_first(&pasid_ida)) > 0) { //anything to do with the allocated ID ida_free(pasid_ida, pasid); }
Cc: Matthew Wilcox (Oracle) willy@infradead.org Suggested-by: Jason Gunthorpe jgg@nvidia.com Signed-off-by: Yi Liu yi.l.liu@intel.com
Reviewed-by: Kevin Tian kevin.tian@intel.com