Merge tag 'for-6.14/io_uring-20250119' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:
 "Not a lot in terms of features this time around, mostly just cleanups
  and code consolidation:

   - Support for PI meta data read/write via io_uring, with NVMe and
     SCSI covered

   - Cleanup the per-op structure caching, making it consistent across
     various command types

   - Consolidate the various user mapped features into a concept called
     regions, making the various users of that consistent

   - Various cleanups and fixes"

* tag 'for-6.14/io_uring-20250119' of git://git.kernel.dk/linux: (56 commits)
  io_uring/fdinfo: fix io_uring_show_fdinfo() misuse of ->d_iname
  io_uring: reuse io_should_terminate_tw() for cmds
  io_uring: Factor out a function to parse restrictions
  io_uring/rsrc: require cloned buffers to share accounting contexts
  io_uring: simplify the SQPOLL thread check when cancelling requests
  io_uring: expose read/write attribute capability
  io_uring/rw: don't gate retry on completion context
  io_uring/rw: handle -EAGAIN retry at IO completion time
  io_uring/rw: use io_rw_recycle() from cleanup path
  io_uring/rsrc: simplify the bvec iter count calculation
  io_uring: ensure io_queue_deferred() is out-of-line
  io_uring/rw: always clear ->bytes_done on io_async_rw setup
  io_uring/rw: use NULL for rw->free_iovec assigment
  io_uring/rw: don't mask in f_iocb_flags
  io_uring/msg_ring: Drop custom destructor
  io_uring: Move old async data allocation helper to header
  io_uring/rw: Allocate async data through helper
  io_uring/net: Allocate msghdr async data through helper
  io_uring/uring_cmd: Allocate async data through generic helper
  io_uring/poll: Allocate apoll with generic alloc_cache helper
  ...

1 files changed, 11 insertions, 23 deletions

diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c
index ce7726a04883..fc94c465a985 100644
--- a/io_uring/uring_cmd.c
+++ b/io_uring/uring_cmd.c
@@ -16,26 +16,6 @@
 #include "rsrc.h"
 #include "uring_cmd.h"
 
-static struct io_uring_cmd_data *io_uring_async_get(struct io_kiocb *req)
-{
-	struct io_ring_ctx *ctx = req->ctx;
-	struct io_uring_cmd_data *cache;
-
-	cache = io_alloc_cache_get(&ctx->uring_cache);
-	if (cache) {
-		cache->op_data = NULL;
-		req->flags |= REQ_F_ASYNC_DATA;
-		req->async_data = cache;
-		return cache;
-	}
-	if (!io_alloc_async_data(req)) {
-		cache = req->async_data;
-		cache->op_data = NULL;
-		return cache;
-	}
-	return NULL;
-}
-
 static void io_req_uring_cleanup(struct io_kiocb *req, unsigned int issue_flags)
 {
 	struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd);
@@ -130,7 +110,7 @@ static void io_uring_cmd_work(struct io_kiocb *req, struct io_tw_state *ts)
 	struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd);
 	unsigned int flags = IO_URING_F_COMPLETE_DEFER;
 
-	if (current->flags & (PF_EXITING | PF_KTHREAD))
+	if (io_should_terminate_tw())
 		flags |= IO_URING_F_TASK_DEAD;
 
 	/* task_work executor checks the deffered list completion */
@@ -188,14 +168,22 @@ void io_uring_cmd_done(struct io_uring_cmd *ioucmd, ssize_t ret, u64 res2,
 }
 EXPORT_SYMBOL_GPL(io_uring_cmd_done);
 
+static void io_uring_cmd_init_once(void *obj)
+{
+	struct io_uring_cmd_data *data = obj;
+
+	data->op_data = NULL;
+}	
+
 static int io_uring_cmd_prep_setup(struct io_kiocb *req,
 				   const struct io_uring_sqe *sqe)
 {
 	struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd);
 	struct io_uring_cmd_data *cache;
 
-	cache = io_uring_async_get(req);
-	if (unlikely(!cache))
+	cache = io_uring_alloc_async_data(&req->ctx->uring_cache, req,
+			io_uring_cmd_init_once);
+	if (!cache)
 		return -ENOMEM;
 
 	if (!(req->flags & REQ_F_FORCE_ASYNC)) {