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-rw-r--r--include/linux/io_uring_types.h21
-rw-r--r--include/uapi/linux/io_uring.h8
2 files changed, 19 insertions, 10 deletions
diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h
index 128a67a40065..0efe4d784358 100644
--- a/include/linux/io_uring_types.h
+++ b/include/linux/io_uring_types.h
@@ -195,21 +195,23 @@ struct io_alloc_cache {
struct io_ring_ctx {
/* const or read-mostly hot data */
struct {
- struct percpu_ref refs;
-
- struct io_rings *rings;
unsigned int flags;
- enum task_work_notify_mode notify_method;
- unsigned int compat: 1;
unsigned int drain_next: 1;
unsigned int restricted: 1;
unsigned int off_timeout_used: 1;
unsigned int drain_active: 1;
- unsigned int drain_disabled: 1;
unsigned int has_evfd: 1;
- unsigned int syscall_iopoll: 1;
/* all CQEs should be posted only by the submitter task */
unsigned int task_complete: 1;
+ unsigned int syscall_iopoll: 1;
+ unsigned int poll_activated: 1;
+ unsigned int drain_disabled: 1;
+ unsigned int compat: 1;
+
+ enum task_work_notify_mode notify_method;
+ struct io_rings *rings;
+ struct task_struct *submitter_task;
+ struct percpu_ref refs;
} ____cacheline_aligned_in_smp;
/* submission data */
@@ -293,6 +295,7 @@ struct io_ring_ctx {
spinlock_t completion_lock;
bool poll_multi_queue;
+ bool cq_waiting;
/*
* ->iopoll_list is protected by the ctx->uring_lock for
@@ -318,9 +321,8 @@ struct io_ring_ctx {
} ____cacheline_aligned_in_smp;
/* Keep this last, we don't need it for the fast path */
-
+ struct wait_queue_head poll_wq;
struct io_restriction restrictions;
- struct task_struct *submitter_task;
/* slow path rsrc auxilary data, used by update/register */
struct io_rsrc_node *rsrc_backup_node;
@@ -357,6 +359,7 @@ struct io_ring_ctx {
u32 iowq_limits[2];
bool iowq_limits_set;
+ struct callback_head poll_wq_task_work;
struct list_head defer_list;
unsigned sq_thread_idle;
/* protected by ->completion_lock */
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index 2780bce62faf..97661a60b28c 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -347,6 +347,8 @@ enum {
* applicable for IORING_MSG_DATA, obviously.
*/
#define IORING_MSG_RING_CQE_SKIP (1U << 0)
+/* Pass through the flags from sqe->file_index to cqe->flags */
+#define IORING_MSG_RING_FLAGS_PASS (1U << 1)
/*
* IO completion data structure (Completion Queue Entry)
@@ -470,6 +472,7 @@ struct io_uring_params {
#define IORING_FEAT_RSRC_TAGS (1U << 10)
#define IORING_FEAT_CQE_SKIP (1U << 11)
#define IORING_FEAT_LINKED_FILE (1U << 12)
+#define IORING_FEAT_REG_REG_RING (1U << 13)
/*
* io_uring_register(2) opcodes and arguments
@@ -517,7 +520,10 @@ enum {
IORING_REGISTER_FILE_ALLOC_RANGE = 25,
/* this goes last */
- IORING_REGISTER_LAST
+ IORING_REGISTER_LAST,
+
+ /* flag added to the opcode to use a registered ring fd */
+ IORING_REGISTER_USE_REGISTERED_RING = 1U << 31
};
/* io-wq worker categories */