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b1011b2b45
Pull io_uring fixes from Jens Axboe: - Correctly cap iov_iter->nr_segs for imports of registered buffers, both kbuf and normal ones. Three cleanups to make it saner first, then two fixes for each of the buffer types. This fixes a performance regression where partial buffer usage doesn't trim the tail number of segments, leading the block layer to iterate the IOs to check if it needs splitting. - Two patches tweaking the newly introduced zero-copy rx API, mostly to keep the API consistent once we add multiple interface queues per ring support in the 6.16 release. - zc rx unmapping fix for a dead device * tag 'io_uring-6.15-20250418' of git://git.kernel.dk/linux: io_uring/zcrx: fix late dma unmap for a dead dev io_uring/rsrc: ensure segments counts are correct on kbuf buffers io_uring/rsrc: send exact nr_segs for fixed buffer io_uring/rsrc: refactor io_import_fixed io_uring/rsrc: separate kbuf offset adjustments io_uring/rsrc: don't skip offset calculation io_uring/zcrx: add pp to ifq conversion helper io_uring/zcrx: return ifq id to the user