Hi, This series was previously part of the ring map series targeted for 6.10, where remap_pfn_range() was replaced by vm_insert_pages(). But I think it can stand on its own and has real fixes in it too and should go in sooner, so sending it out separately. Series basically gets rid of the split we have between how lists are stored depending on their buffer group ID, and stores everything in an xarray to remove the distinction between the two. With that, we can drop the io_buffer_list->is_ready as well. Then it adds a separate reference for the io_buffer_list, and uses that to tighten down how mmap buffer rings are handled. The resulting code is simpler and easier to follow, and drops more code than it adds. include/linux/io_uring_types.h | 1 - io_uring/io_uring.c | 13 ++-- io_uring/kbuf.c | 118 ++++++++++++--------------------- io_uring/kbuf.h | 8 ++- 4 files changed, 52 insertions(+), 88 deletions(-) -- Jens Axboe
