Merge branch 'dev-5.10' into dev-5.10-inteldev-5.10-intel

Pull 5.10.67 stable from OpenBMC upstream.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>

1 files changed, 49 insertions, 38 deletions

diff --git a/fs/io_uring.c b/fs/io_uring.c
index ed641dca7957..d0089039fee7 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -889,6 +889,7 @@ static const struct io_op_def io_op_defs[] = {
 	},
 	[IORING_OP_WRITE] = {
 		.needs_file		= 1,
+		.hash_reg_file		= 1,
 		.unbound_nonreg_file	= 1,
 		.pollout		= 1,
 		.async_size		= sizeof(struct io_async_rw),
@@ -1497,6 +1498,8 @@ static void io_kill_timeout(struct io_kiocb *req, int status)
 
 	ret = hrtimer_try_to_cancel(&io->timer);
 	if (ret != -1) {
+		if (status)
+			req_set_fail_links(req);
 		atomic_set(&req->ctx->cq_timeouts,
 			atomic_read(&req->ctx->cq_timeouts) + 1);
 		list_del_init(&req->timeout.list);
@@ -3125,7 +3128,7 @@ static ssize_t __io_import_iovec(int rw, struct io_kiocb *req,
 
 		ret = import_single_range(rw, buf, sqe_len, *iovec, iter);
 		*iovec = NULL;
-		return ret < 0 ? ret : sqe_len;
+		return ret;
 	}
 
 	if (req->flags & REQ_F_BUFFER_SELECT) {
@@ -3151,7 +3154,7 @@ static ssize_t io_import_iovec(int rw, struct io_kiocb *req,
 	if (!iorw)
 		return __io_import_iovec(rw, req, iovec, iter, needs_lock);
 	*iovec = NULL;
-	return iov_iter_count(&iorw->iter);
+	return 0;
 }
 
 static inline loff_t *io_kiocb_ppos(struct kiocb *kiocb)
@@ -3410,7 +3413,6 @@ static int io_read(struct io_kiocb *req, bool force_nonblock,
 	struct iov_iter __iter, *iter = &__iter;
 	struct io_async_rw *rw = req->async_data;
 	ssize_t io_size, ret, ret2;
-	size_t iov_count;
 	bool no_async;
 
 	if (rw)
@@ -3419,8 +3421,7 @@ static int io_read(struct io_kiocb *req, bool force_nonblock,
 	ret = io_import_iovec(READ, req, &iovec, iter, !force_nonblock);
 	if (ret < 0)
 		return ret;
-	iov_count = iov_iter_count(iter);
-	io_size = ret;
+	io_size = iov_iter_count(iter);
 	req->result = io_size;
 	ret = 0;
 
@@ -3436,7 +3437,7 @@ static int io_read(struct io_kiocb *req, bool force_nonblock,
 	if (no_async)
 		goto copy_iov;
 
-	ret = rw_verify_area(READ, req->file, io_kiocb_ppos(kiocb), iov_count);
+	ret = rw_verify_area(READ, req->file, io_kiocb_ppos(kiocb), io_size);
 	if (unlikely(ret))
 		goto out_free;
 
@@ -3455,7 +3456,7 @@ static int io_read(struct io_kiocb *req, bool force_nonblock,
 		if (req->file->f_flags & O_NONBLOCK)
 			goto done;
 		/* some cases will consume bytes even on error returns */
-		iov_iter_revert(iter, iov_count - iov_iter_count(iter));
+		iov_iter_revert(iter, io_size - iov_iter_count(iter));
 		ret = 0;
 		goto copy_iov;
 	} else if (ret < 0) {
@@ -3539,7 +3540,6 @@ static int io_write(struct io_kiocb *req, bool force_nonblock,
 	struct kiocb *kiocb = &req->rw.kiocb;
 	struct iov_iter __iter, *iter = &__iter;
 	struct io_async_rw *rw = req->async_data;
-	size_t iov_count;
 	ssize_t ret, ret2, io_size;
 
 	if (rw)
@@ -3548,8 +3548,7 @@ static int io_write(struct io_kiocb *req, bool force_nonblock,
 	ret = io_import_iovec(WRITE, req, &iovec, iter, !force_nonblock);
 	if (ret < 0)
 		return ret;
-	iov_count = iov_iter_count(iter);
-	io_size = ret;
+	io_size = iov_iter_count(iter);
 	req->result = io_size;
 
 	/* Ensure we clear previously set non-block flag */
@@ -3567,7 +3566,7 @@ static int io_write(struct io_kiocb *req, bool force_nonblock,
 	    (req->flags & REQ_F_ISREG))
 		goto copy_iov;
 
-	ret = rw_verify_area(WRITE, req->file, io_kiocb_ppos(kiocb), iov_count);
+	ret = rw_verify_area(WRITE, req->file, io_kiocb_ppos(kiocb), io_size);
 	if (unlikely(ret))
 		goto out_free;
 
@@ -3610,7 +3609,7 @@ done:
 	} else {
 copy_iov:
 		/* some cases will consume bytes even on error returns */
-		iov_iter_revert(iter, iov_count - iov_iter_count(iter));
+		iov_iter_revert(iter, io_size - iov_iter_count(iter));
 		ret = io_setup_async_rw(req, iovec, inline_vecs, iter, false);
 		if (!ret)
 			return -EAGAIN;
@@ -3745,7 +3744,8 @@ static int io_prep_fsync(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 
 	if (unlikely(ctx->flags & IORING_SETUP_IOPOLL))
 		return -EINVAL;
-	if (unlikely(sqe->addr || sqe->ioprio || sqe->buf_index))
+	if (unlikely(sqe->addr || sqe->ioprio || sqe->buf_index ||
+		     sqe->splice_fd_in))
 		return -EINVAL;
 
 	req->sync.flags = READ_ONCE(sqe->fsync_flags);
@@ -3778,7 +3778,8 @@ static int io_fsync(struct io_kiocb *req, bool force_nonblock)
 static int io_fallocate_prep(struct io_kiocb *req,
 			     const struct io_uring_sqe *sqe)
 {
-	if (sqe->ioprio || sqe->buf_index || sqe->rw_flags)
+	if (sqe->ioprio || sqe->buf_index || sqe->rw_flags ||
+	    sqe->splice_fd_in)
 		return -EINVAL;
 	if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
 		return -EINVAL;
@@ -3809,7 +3810,7 @@ static int __io_openat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe
 	const char __user *fname;
 	int ret;
 
-	if (unlikely(sqe->ioprio || sqe->buf_index))
+	if (unlikely(sqe->ioprio || sqe->buf_index || sqe->splice_fd_in))
 		return -EINVAL;
 	if (unlikely(req->flags & REQ_F_FIXED_FILE))
 		return -EBADF;
@@ -3925,7 +3926,8 @@ static int io_remove_buffers_prep(struct io_kiocb *req,
 	struct io_provide_buf *p = &req->pbuf;
 	u64 tmp;
 
-	if (sqe->ioprio || sqe->rw_flags || sqe->addr || sqe->len || sqe->off)
+	if (sqe->ioprio || sqe->rw_flags || sqe->addr || sqe->len || sqe->off ||
+	    sqe->splice_fd_in)
 		return -EINVAL;
 
 	tmp = READ_ONCE(sqe->fd);
@@ -4001,7 +4003,7 @@ static int io_provide_buffers_prep(struct io_kiocb *req,
 	struct io_provide_buf *p = &req->pbuf;
 	u64 tmp;
 
-	if (sqe->ioprio || sqe->rw_flags)
+	if (sqe->ioprio || sqe->rw_flags || sqe->splice_fd_in)
 		return -EINVAL;
 
 	tmp = READ_ONCE(sqe->fd);
@@ -4094,7 +4096,7 @@ static int io_epoll_ctl_prep(struct io_kiocb *req,
 			     const struct io_uring_sqe *sqe)
 {
 #if defined(CONFIG_EPOLL)
-	if (sqe->ioprio || sqe->buf_index)
+	if (sqe->ioprio || sqe->buf_index || sqe->splice_fd_in)
 		return -EINVAL;
 	if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL | IORING_SETUP_SQPOLL)))
 		return -EINVAL;
@@ -4140,7 +4142,7 @@ static int io_epoll_ctl(struct io_kiocb *req, bool force_nonblock,
 static int io_madvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 {
 #if defined(CONFIG_ADVISE_SYSCALLS) && defined(CONFIG_MMU)
-	if (sqe->ioprio || sqe->buf_index || sqe->off)
+	if (sqe->ioprio || sqe->buf_index || sqe->off || sqe->splice_fd_in)
 		return -EINVAL;
 	if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
 		return -EINVAL;
@@ -4175,7 +4177,7 @@ static int io_madvise(struct io_kiocb *req, bool force_nonblock)
 
 static int io_fadvise_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 {
-	if (sqe->ioprio || sqe->buf_index || sqe->addr)
+	if (sqe->ioprio || sqe->buf_index || sqe->addr || sqe->splice_fd_in)
 		return -EINVAL;
 	if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
 		return -EINVAL;
@@ -4213,7 +4215,7 @@ static int io_statx_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 {
 	if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL | IORING_SETUP_SQPOLL)))
 		return -EINVAL;
-	if (sqe->ioprio || sqe->buf_index)
+	if (sqe->ioprio || sqe->buf_index || sqe->splice_fd_in)
 		return -EINVAL;
 	if (req->flags & REQ_F_FIXED_FILE)
 		return -EBADF;
@@ -4260,7 +4262,7 @@ static int io_close_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 	if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL|IORING_SETUP_SQPOLL)))
 		return -EINVAL;
 	if (sqe->ioprio || sqe->off || sqe->addr || sqe->len ||
-	    sqe->rw_flags || sqe->buf_index)
+	    sqe->rw_flags || sqe->buf_index || sqe->splice_fd_in)
 		return -EINVAL;
 	if (req->flags & REQ_F_FIXED_FILE)
 		return -EBADF;
@@ -4316,7 +4318,8 @@ static int io_prep_sfr(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 
 	if (unlikely(ctx->flags & IORING_SETUP_IOPOLL))
 		return -EINVAL;
-	if (unlikely(sqe->addr || sqe->ioprio || sqe->buf_index))
+	if (unlikely(sqe->addr || sqe->ioprio || sqe->buf_index ||
+		     sqe->splice_fd_in))
 		return -EINVAL;
 
 	req->sync.off = READ_ONCE(sqe->off);
@@ -4759,7 +4762,7 @@ static int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 
 	if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL|IORING_SETUP_SQPOLL)))
 		return -EINVAL;
-	if (sqe->ioprio || sqe->len || sqe->buf_index)
+	if (sqe->ioprio || sqe->len || sqe->buf_index || sqe->splice_fd_in)
 		return -EINVAL;
 
 	accept->addr = u64_to_user_ptr(READ_ONCE(sqe->addr));
@@ -4800,7 +4803,8 @@ static int io_connect_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 
 	if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL|IORING_SETUP_SQPOLL)))
 		return -EINVAL;
-	if (sqe->ioprio || sqe->len || sqe->buf_index || sqe->rw_flags)
+	if (sqe->ioprio || sqe->len || sqe->buf_index || sqe->rw_flags ||
+	    sqe->splice_fd_in)
 		return -EINVAL;
 
 	conn->addr = u64_to_user_ptr(READ_ONCE(sqe->addr));
@@ -5552,7 +5556,8 @@ static int io_timeout_remove_prep(struct io_kiocb *req,
 		return -EINVAL;
 	if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT)))
 		return -EINVAL;
-	if (sqe->ioprio || sqe->buf_index || sqe->len || sqe->timeout_flags)
+	if (sqe->ioprio || sqe->buf_index || sqe->len || sqe->timeout_flags |
+	    sqe->splice_fd_in)
 		return -EINVAL;
 
 	req->timeout_rem.addr = READ_ONCE(sqe->addr);
@@ -5589,7 +5594,8 @@ static int io_timeout_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
 
 	if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
 		return -EINVAL;
-	if (sqe->ioprio || sqe->buf_index || sqe->len != 1)
+	if (sqe->ioprio || sqe->buf_index || sqe->len != 1 ||
+	    sqe->splice_fd_in)
 		return -EINVAL;
 	if (off && is_timeout_link)
 		return -EINVAL;
@@ -5733,7 +5739,8 @@ static int io_async_cancel_prep(struct io_kiocb *req,
 		return -EINVAL;
 	if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT)))
 		return -EINVAL;
-	if (sqe->ioprio || sqe->off || sqe->len || sqe->cancel_flags)
+	if (sqe->ioprio || sqe->off || sqe->len || sqe->cancel_flags ||
+	    sqe->splice_fd_in)
 		return -EINVAL;
 
 	req->cancel.addr = READ_ONCE(sqe->addr);
@@ -7382,7 +7389,7 @@ static int io_sqe_alloc_file_tables(struct fixed_file_data *file_data,
 
 		this_files = min(nr_files, IORING_MAX_FILES_TABLE);
 		table->files = kcalloc(this_files, sizeof(struct file *),
-					GFP_KERNEL);
+					GFP_KERNEL_ACCOUNT);
 		if (!table->files)
 			break;
 		nr_files -= this_files;
@@ -7578,8 +7585,10 @@ static int io_sqe_files_register(struct io_ring_ctx *ctx, void __user *arg,
 		return -EINVAL;
 	if (nr_args > IORING_MAX_FIXED_FILES)
 		return -EMFILE;
+	if (nr_args > rlimit(RLIMIT_NOFILE))
+		return -EMFILE;
 
-	file_data = kzalloc(sizeof(*ctx->file_data), GFP_KERNEL);
+	file_data = kzalloc(sizeof(*ctx->file_data), GFP_KERNEL_ACCOUNT);
 	if (!file_data)
 		return -ENOMEM;
 	file_data->ctx = ctx;
@@ -7589,7 +7598,7 @@ static int io_sqe_files_register(struct io_ring_ctx *ctx, void __user *arg,
 
 	nr_tables = DIV_ROUND_UP(nr_args, IORING_MAX_FILES_TABLE);
 	file_data->table = kcalloc(nr_tables, sizeof(*file_data->table),
-				   GFP_KERNEL);
+				   GFP_KERNEL_ACCOUNT);
 	if (!file_data->table)
 		goto out_free;
 
@@ -9078,9 +9087,10 @@ SYSCALL_DEFINE6(io_uring_enter, unsigned int, fd, u32, to_submit,
 	if (ctx->flags & IORING_SETUP_SQPOLL) {
 		io_cqring_overflow_flush(ctx, false, NULL, NULL);
 
-		ret = -EOWNERDEAD;
-		if (unlikely(ctx->sqo_dead))
+		if (unlikely(ctx->sqo_dead)) {
+			ret = -EOWNERDEAD;
 			goto out;
+		}
 		if (flags & IORING_ENTER_SQ_WAKEUP)
 			wake_up(&ctx->sq_data->wait);
 		if (flags & IORING_ENTER_SQ_WAIT) {
@@ -9601,11 +9611,12 @@ static int io_register_personality(struct io_ring_ctx *ctx)
 
 	ret = xa_alloc_cyclic(&ctx->personalities, &id, (void *)iod,
 			XA_LIMIT(0, USHRT_MAX), &ctx->pers_next, GFP_KERNEL);
-	if (!ret)
-		return id;
-	put_cred(iod->creds);
-	kfree(iod);
-	return ret;
+	if (ret < 0) {
+		put_cred(iod->creds);
+		kfree(iod);
+		return ret;
+	}
+	return id;
 }
 
 static int io_register_restrictions(struct io_ring_ctx *ctx, void __user *arg,