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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667// 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