diff options
Diffstat (limited to 'io_uring/io_uring.c')
-rw-r--r-- | io_uring/io_uring.c | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 0c47c919887f..c0f1f79933ac 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -2699,38 +2699,6 @@ out_free: return ret; } -/* - * Note when io_fixed_fd_install() returns error value, it will ensure - * fput() is called correspondingly. - */ -int io_fixed_fd_install(struct io_kiocb *req, unsigned int issue_flags, - struct file *file, unsigned int file_slot) -{ - bool alloc_slot = file_slot == IORING_FILE_INDEX_ALLOC; - struct io_ring_ctx *ctx = req->ctx; - int ret; - - io_ring_submit_lock(ctx, issue_flags); - - if (alloc_slot) { - ret = io_file_bitmap_get(ctx); - if (unlikely(ret < 0)) - goto err; - file_slot = ret; - } else { - file_slot--; - } - - ret = io_install_fixed_file(req, file, issue_flags, file_slot); - if (!ret && alloc_slot) - ret = file_slot; -err: - io_ring_submit_unlock(ctx, issue_flags); - if (unlikely(ret < 0)) - fput(file); - return ret; -} - static __maybe_unused int io_eopnotsupp_prep(struct io_kiocb *kiocb, const struct io_uring_sqe *sqe) { @@ -3579,56 +3547,6 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events, return READ_ONCE(rings->cq.head) == READ_ONCE(rings->cq.tail) ? ret : 0; } -int io_install_fixed_file(struct io_kiocb *req, struct file *file, - unsigned int issue_flags, u32 slot_index) - __must_hold(&req->ctx->uring_lock) -{ - struct io_ring_ctx *ctx = req->ctx; - bool needs_switch = false; - struct io_fixed_file *file_slot; - int ret; - - if (io_is_uring_fops(file)) - return -EBADF; - if (!ctx->file_data) - return -ENXIO; - if (slot_index >= ctx->nr_user_files) - return -EINVAL; - - slot_index = array_index_nospec(slot_index, ctx->nr_user_files); - file_slot = io_fixed_file_slot(&ctx->file_table, slot_index); - - if (file_slot->file_ptr) { - struct file *old_file; - - ret = io_rsrc_node_switch_start(ctx); - if (ret) - goto err; - - old_file = (struct file *)(file_slot->file_ptr & FFS_MASK); - ret = io_queue_rsrc_removal(ctx->file_data, slot_index, - ctx->rsrc_node, old_file); - if (ret) - goto err; - file_slot->file_ptr = 0; - io_file_bitmap_clear(&ctx->file_table, slot_index); - needs_switch = true; - } - - ret = io_scm_file_account(ctx, file); - if (!ret) { - *io_get_tag_slot(ctx->file_data, slot_index) = 0; - io_fixed_file_set(file_slot, file); - io_file_bitmap_set(&ctx->file_table, slot_index); - } -err: - if (needs_switch) - io_rsrc_node_switch(ctx, ctx->file_data); - if (ret) - fput(file); - return ret; -} - static void io_mem_free(void *ptr) { struct page *page; |