// SPDX-License-Identifier: GPL-2.0#ifndef IOU_FILE_TABLE_H#define IOU_FILE_TABLE_H #include <linux/io_uring_types.h>#include "rsrc.h" bool io_alloc_file_tables(struct io_ring_ctx *ctx, struct io_file_table *table, unsigned nr_files);void io_free_file_tables(struct io_ring_ctx *ctx, struct io_file_table *table); int io_fixed_fd_install(struct io_kiocb *req, unsigned int issue_flags,			struct file *file, unsigned int file_slot);int __io_fixed_fd_install(struct io_ring_ctx *ctx, struct file *file,				unsigned int file_slot);int io_fixed_fd_remove(struct io_ring_ctx *ctx, unsigned int offset); int io_register_file_alloc_range(struct io_ring_ctx *ctx,				 struct io_uring_file_index_range __user *arg); io_req_flags_t io_file_get_flags(struct file *file); static inline void io_file_bitmap_clear(struct io_file_table *table, int bit){	WARN_ON_ONCE(!test_bit(bit, table->bitmap));	__clear_bit(bit, table->bitmap);	table->alloc_hint = bit;} static inline void io_file_bitmap_set(struct io_file_table *table, int bit){	WARN_ON_ONCE(test_bit(bit, table->bitmap));	__set_bit(bit, table->bitmap);	table->alloc_hint = bit + 1;} #define FFS_NOWAIT		0x1UL#define FFS_ISREG		0x2UL#define FFS_MASK		~(FFS_NOWAIT|FFS_ISREG) static inline unsigned int io_slot_flags(struct io_rsrc_node *node){ 	return (node->file_ptr & ~FFS_MASK) << REQ_F_SUPPORT_NOWAIT_BIT;} static inline struct file *io_slot_file(struct io_rsrc_node *node){	return (struct file *)(node->file_ptr & FFS_MASK);} static inline void io_fixed_file_set(struct io_rsrc_node *node,				     struct file *file){	node->file_ptr = (unsigned long)file |		(io_file_get_flags(file) >> REQ_F_SUPPORT_NOWAIT_BIT);} static inline void io_file_table_set_alloc_range(struct io_ring_ctx *ctx,						 unsigned off, unsigned len){	ctx->file_alloc_start = off;	ctx->file_alloc_end = off + len;	ctx->file_table.alloc_hint = ctx->file_alloc_start;} #endif