On Fri, Nov 11, 2022 at 11:09:08AM +0000, Tian, Kevin wrote:
<...2nd part>
From: Jason Gunthorpe jgg@nvidia.com Sent: Tuesday, November 8, 2022 8:49 AM
+/* pfn_reader_user is just the pin_user_pages() path */ +struct pfn_reader_user {
- struct page **upages;
- size_t upages_len;
- unsigned long upages_start;
- unsigned long upages_end;
- unsigned int gup_flags;
- int locked;
document what locked==-1/0/1 means
+ /* + * 1 means mmget() and mmap_read_lock(), 0 means only mmget(), -1 is + * neither + */
+/* Process a single span in the access_itree */
in all storages.
+/* Process a single span to load it from the proper storage */
Thanks, Jason