page_cache.hpp

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// SPDX-License-Identifier: GPL-3.0-or-later
 
#pragma once
 
#include "mos/filesystem/vfs_types.hpp"
#include "mos/mm/physical/pmm.hpp"
#include "mos/types.hpp"

PtrResult<phyframe_t> pagecache_get_page_for_read(inode_cache_t *cache, off_t pgoff);

PtrResult<phyframe_t> pagecache_get_page_for_write(inode_cache_t *cache, off_t pgoff);
 
ssize_t vfs_read_pagecache(inode_cache_t *icache, void *buf, size_t size, off_t offset);
ssize_t vfs_write_pagecache(inode_cache_t *icache, const void *buf, size_t total_size, off_t offset);

long pagecache_flush_or_drop(inode_cache_t *icache, off_t pgoff, size_t npages, bool drop_page);

long pagecache_flush_or_drop_all(inode_cache_t *icache, bool drop_page);