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From: Bijan Mottahedeh <[email protected]>
To: [email protected], [email protected], [email protected]
Subject: [PATCH v2 10/13] io_uring: generalize files_update functionlity to rsrc_update
Date: Mon,  7 Dec 2020 14:15:49 -0800	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

Generalize files_update functionality to rsrc_update in order to leverage
it for buffers updates.

Signed-off-by: Bijan Mottahedeh <[email protected]>
---
 fs/io_uring.c                 | 45 ++++++++++++++++++++++++++-----------------
 include/uapi/linux/io_uring.h | 10 ++++++++++
 2 files changed, 37 insertions(+), 18 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 384ff3c..1108682 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -517,7 +517,7 @@ struct io_open {
 	unsigned long			nofile;
 };
 
-struct io_files_update {
+struct io_rsrc_update {
 	struct file			*file;
 	u64				arg;
 	u32				nr_args;
@@ -711,7 +711,7 @@ struct io_kiocb {
 		struct io_sr_msg	sr_msg;
 		struct io_open		open;
 		struct io_close		close;
-		struct io_files_update	files_update;
+		struct io_rsrc_update	rsrc_update;
 		struct io_fadvise	fadvise;
 		struct io_madvise	madvise;
 		struct io_epoll		epoll;
@@ -1026,7 +1026,7 @@ static void __io_complete_rw(struct io_kiocb *req, long res, long res2,
 static void __io_queue_linked_timeout(struct io_kiocb *req);
 static void io_queue_linked_timeout(struct io_kiocb *req);
 static int __io_sqe_files_update(struct io_ring_ctx *ctx,
-				 struct io_uring_files_update *ip,
+				 struct io_uring_rsrc_update *ip,
 				 unsigned nr_args);
 static void __io_clean_op(struct io_kiocb *req);
 static struct file *io_file_get(struct io_submit_state *state,
@@ -5962,8 +5962,8 @@ static int io_async_cancel(struct io_kiocb *req)
 	return 0;
 }
 
-static int io_files_update_prep(struct io_kiocb *req,
-				const struct io_uring_sqe *sqe)
+static int io_rsrc_update_prep(struct io_kiocb *req,
+			       const struct io_uring_sqe *sqe)
 {
 	if (unlikely(req->ctx->flags & IORING_SETUP_SQPOLL))
 		return -EINVAL;
@@ -5972,29 +5972,32 @@ static int io_files_update_prep(struct io_kiocb *req,
 	if (sqe->ioprio || sqe->rw_flags)
 		return -EINVAL;
 
-	req->files_update.offset = READ_ONCE(sqe->off);
-	req->files_update.nr_args = READ_ONCE(sqe->len);
-	if (!req->files_update.nr_args)
+	req->rsrc_update.offset = READ_ONCE(sqe->off);
+	req->rsrc_update.nr_args = READ_ONCE(sqe->len);
+	if (!req->rsrc_update.nr_args)
 		return -EINVAL;
-	req->files_update.arg = READ_ONCE(sqe->addr);
+	req->rsrc_update.arg = READ_ONCE(sqe->addr);
 	return 0;
 }
 
-static int io_files_update(struct io_kiocb *req, bool force_nonblock,
-			   struct io_comp_state *cs)
+static int io_rsrc_update(struct io_kiocb *req, bool force_nonblock,
+			  struct io_comp_state *cs,
+			  int (*update)(struct io_ring_ctx *ctx,
+					struct io_uring_rsrc_update *up,
+					unsigned nr_args))
 {
 	struct io_ring_ctx *ctx = req->ctx;
-	struct io_uring_files_update up;
+	struct io_uring_rsrc_update up;
 	int ret;
 
 	if (force_nonblock)
 		return -EAGAIN;
 
-	up.offset = req->files_update.offset;
-	up.fds = req->files_update.arg;
+	up.offset = req->rsrc_update.offset;
+	up.rsrc = req->rsrc_update.arg;
 
 	mutex_lock(&ctx->uring_lock);
-	ret = __io_sqe_files_update(ctx, &up, req->files_update.nr_args);
+	ret = (*update)(ctx, &up, req->rsrc_update.nr_args);
 	mutex_unlock(&ctx->uring_lock);
 
 	if (ret < 0)
@@ -6003,6 +6006,12 @@ static int io_files_update(struct io_kiocb *req, bool force_nonblock,
 	return 0;
 }
 
+static int io_files_update(struct io_kiocb *req, bool force_nonblock,
+			   struct io_comp_state *cs)
+{
+	return io_rsrc_update(req, force_nonblock, cs, __io_sqe_files_update);
+}
+
 static int io_req_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 {
 	switch (req->opcode) {
@@ -6049,7 +6058,7 @@ static int io_req_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 	case IORING_OP_CLOSE:
 		return io_close_prep(req, sqe);
 	case IORING_OP_FILES_UPDATE:
-		return io_files_update_prep(req, sqe);
+		return io_rsrc_update_prep(req, sqe);
 	case IORING_OP_STATX:
 		return io_statx_prep(req, sqe);
 	case IORING_OP_FADVISE:
@@ -7929,7 +7938,7 @@ static void switch_fixed_rsrc_ref_node(struct fixed_rsrc_ref_node *ref_node,
 }
 
 static int __io_sqe_files_update(struct io_ring_ctx *ctx,
-				 struct io_uring_files_update *up,
+				 struct io_uring_rsrc_update *up,
 				 unsigned nr_args)
 {
 	struct fixed_rsrc_data *data = ctx->file_data;
@@ -8014,7 +8023,7 @@ static int __io_sqe_files_update(struct io_ring_ctx *ctx,
 static int io_sqe_files_update(struct io_ring_ctx *ctx, void __user *arg,
 			       unsigned nr_args)
 {
-	struct io_uring_files_update up;
+	struct io_uring_rsrc_update up;
 
 	if (!ctx->file_data)
 		return -ENXIO;
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index d31a2a1..ba5deff 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -291,6 +291,16 @@ struct io_uring_files_update {
 	__aligned_u64 /* __s32 * */ fds;
 };
 
+struct io_uring_rsrc_update {
+	__u32 offset;
+	__u32 resv;
+	union {
+		__aligned_u64 /* __s32 * */ fds;
+		__aligned_u64 /* __s32 * */ iovs;
+		__aligned_u64 /* __s32 * */ rsrc;
+	};
+};
+
 #define IO_URING_OP_SUPPORTED	(1U << 0)
 
 struct io_uring_probe_op {
-- 
1.8.3.1


  parent reply	other threads:[~2020-12-07 22:17 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-07 22:15 [PATCH v2 00/13] io_uring: buffer registration enhancements Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 01/13] io_uring: modularize io_sqe_buffer_register Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 02/13] io_uring: modularize io_sqe_buffers_register Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 03/13] io_uring: generalize fixed file functionality Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 04/13] io_uring: rename fixed_file variables to fixed_rsrc Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 05/13] io_uring: separate ref_list from fixed_rsrc_data Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 06/13] io_uring: generalize fixed_file_ref_node functionality Bijan Mottahedeh
2020-12-16 14:53   ` Pavel Begunkov
2020-12-18 18:06     ` Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 07/13] io_uring: add rsrc_ref locking routines Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 08/13] io_uring: implement fixed buffers registration similar to fixed files Bijan Mottahedeh
2020-12-16 14:58   ` Pavel Begunkov
2020-12-18 18:06     ` Bijan Mottahedeh
2020-12-16 14:59   ` Pavel Begunkov
2020-12-07 22:15 ` [PATCH v2 09/13] io_uring: create common fixed_rsrc_ref_node handling routines Bijan Mottahedeh
2020-12-07 22:15 ` Bijan Mottahedeh [this message]
2020-12-07 22:15 ` [PATCH v2 11/13] io_uring: support buffer registration updates Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 12/13] io_uring: create common fixed_rsrc_data allocation routines Bijan Mottahedeh
2020-12-07 22:15 ` [PATCH v2 13/13] io_uring: support buffer registration sharing Bijan Mottahedeh
2020-12-16 15:29   ` Pavel Begunkov
2020-12-18 18:06     ` Bijan Mottahedeh
2021-01-07  0:50       ` Bijan Mottahedeh
2021-01-11  5:19         ` Pavel Begunkov
2021-01-12 21:50           ` Bijan Mottahedeh
2020-12-14 19:09 ` [PATCH v2 00/13] io_uring: buffer registration enhancements Bijan Mottahedeh
2020-12-14 19:29   ` Jens Axboe
2020-12-14 19:43     ` Bijan Mottahedeh
2020-12-14 19:47       ` Jens Axboe
2020-12-14 20:59     ` Pavel Begunkov
2020-12-18 18:06       ` Bijan Mottahedeh
2020-12-16 15:34 ` Pavel Begunkov
2020-12-18 18:06   ` Bijan Mottahedeh

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