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Kernel: Make DevFS use the new and better TmpFS instead of RamFS

This commit is contained in:
Bananymous 2023-11-07 16:05:05 +02:00
parent 464737fbe9
commit b87351f6d5
7 changed files with 29 additions and 29 deletions
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4
kernel/include/kernel/Device/Device.h
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@ -1,11 +1,11 @@
#pragma once #pragma once
#include <kernel/FS/RamFS/Inode.h> #include <kernel/FS/TmpFS/Inode.h>
namespace Kernel namespace Kernel
{ {
class Device : public RamInode class Device : public TmpInode
{ {
public: public:
virtual ~Device() = default; virtual ~Device() = default;

10
kernel/include/kernel/FS/DevFS/FileSystem.h
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@ -1,13 +1,13 @@
#pragma once #pragma once
#include <kernel/Device/Device.h> #include <kernel/Device/Device.h>
#include <kernel/FS/RamFS/FileSystem.h> #include <kernel/FS/TmpFS/FileSystem.h>
#include <kernel/Semaphore.h> #include <kernel/Semaphore.h>
namespace Kernel namespace Kernel
{ {
class DevFileSystem final : public RamFileSystem class DevFileSystem final : public TmpFileSystem
{ {
public: public:
static void initialize(); static void initialize();
@ -16,7 +16,7 @@ namespace Kernel
void initialize_device_updater(); void initialize_device_updater();
void add_device(BAN::RefPtr<Device>); void add_device(BAN::RefPtr<Device>);
void add_inode(BAN::StringView path, BAN::RefPtr<RamInode>); void add_inode(BAN::StringView path, BAN::RefPtr<TmpInode>);
void for_each_device(const BAN::Function<BAN::Iteration(Device*)>& callback); void for_each_device(const BAN::Function<BAN::Iteration(Device*)>& callback);
dev_t get_next_dev() const; dev_t get_next_dev() const;
@ -25,8 +25,8 @@ namespace Kernel
void initiate_sync(bool should_block); void initiate_sync(bool should_block);
private: private:
DevFileSystem(size_t size) DevFileSystem()
: RamFileSystem(size) : TmpFileSystem(-1)
{ } { }
private: private:

4
kernel/include/kernel/FS/TmpFS/Inode.h
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@ -35,8 +35,8 @@ namespace Kernel
virtual timespec ctime() const override final { return m_inode_info.ctime; } virtual timespec ctime() const override final { return m_inode_info.ctime; }
virtual blksize_t blksize() const override final { return PAGE_SIZE; } virtual blksize_t blksize() const override final { return PAGE_SIZE; }
virtual blkcnt_t blocks() const override final { return m_inode_info.blocks; } virtual blkcnt_t blocks() const override final { return m_inode_info.blocks; }
virtual dev_t dev() const override final { return 0; } // TODO virtual dev_t dev() const override { return 0; } // TODO
virtual dev_t rdev() const override final { return 0; } // TODO virtual dev_t rdev() const override { return 0; } // TODO
public: public:
static BAN::ErrorOr<BAN::RefPtr<TmpInode>> create_from_existing(TmpFileSystem&, ino_t, const TmpInodeInfo&); static BAN::ErrorOr<BAN::RefPtr<TmpInode>> create_from_existing(TmpFileSystem&, ino_t, const TmpInodeInfo&);

3
kernel/include/kernel/Storage/StorageDevice.h
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@ -51,9 +51,6 @@ namespace Kernel
public: public:
virtual bool is_partition() const override { return true; } virtual bool is_partition() const override { return true; }
virtual Mode mode() const override { return { Mode::IFBLK | Mode::IRUSR | Mode::IRGRP }; }
virtual uid_t uid() const override { return 0; }
virtual gid_t gid() const override { return 0; }
virtual dev_t rdev() const override { return m_rdev; } virtual dev_t rdev() const override { return m_rdev; }
protected: protected:

7
kernel/kernel/Device/Device.cpp
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@ -5,7 +5,12 @@ namespace Kernel
{ {
Device::Device(mode_t mode, uid_t uid, gid_t gid) Device::Device(mode_t mode, uid_t uid, gid_t gid)
: RamInode(DevFileSystem::get(), FullInodeInfo(DevFileSystem::get(), mode, uid, gid)) // FIXME: what the fuck is this
: TmpInode(
DevFileSystem::get(),
MUST(DevFileSystem::get().allocate_inode(create_inode_info(mode, uid, gid))),
create_inode_info(mode, uid, gid)
)
{ } { }
} }

26
kernel/kernel/FS/DevFS/FileSystem.cpp
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@ -2,7 +2,7 @@
#include <kernel/Device/NullDevice.h> #include <kernel/Device/NullDevice.h>
#include <kernel/Device/ZeroDevice.h> #include <kernel/Device/ZeroDevice.h>
#include <kernel/FS/DevFS/FileSystem.h> #include <kernel/FS/DevFS/FileSystem.h>
#include <kernel/FS/RamFS/Inode.h> #include <kernel/FS/TmpFS/Inode.h>
#include <kernel/LockGuard.h> #include <kernel/LockGuard.h>
#include <kernel/Process.h> #include <kernel/Process.h>
#include <kernel/Storage/StorageDevice.h> #include <kernel/Storage/StorageDevice.h>
@ -16,12 +16,10 @@ namespace Kernel
void DevFileSystem::initialize() void DevFileSystem::initialize()
{ {
ASSERT(s_instance == nullptr); ASSERT(s_instance == nullptr);
s_instance = new DevFileSystem(1024 * 1024); s_instance = new DevFileSystem();
ASSERT(s_instance); ASSERT(s_instance);
auto root_inode = MUST(RamDirectoryInode::create(*s_instance, 0, 0755, 0, 0)); MUST(s_instance->TmpFileSystem::initialize(0755, 0, 0));
MUST(s_instance->set_root_inode(root_inode));
s_instance->add_device(MUST(NullDevice::create(0666, 0, 0))); s_instance->add_device(MUST(NullDevice::create(0666, 0, 0)));
s_instance->add_device(MUST(ZeroDevice::create(0666, 0, 0))); s_instance->add_device(MUST(ZeroDevice::create(0666, 0, 0)));
} }
@ -41,10 +39,10 @@ namespace Kernel
{ {
s_instance->m_device_lock.lock(); s_instance->m_device_lock.lock();
s_instance->for_each_inode( s_instance->for_each_inode(
[](BAN::RefPtr<RamInode> inode) [](BAN::RefPtr<TmpInode> inode)
{ {
if (inode->is_device()) if (inode->is_device())
((Device*)inode.ptr())->update(); reinterpret_cast<Device*>(inode.ptr())->update();
return BAN::Iteration::Continue; return BAN::Iteration::Continue;
} }
); );
@ -74,11 +72,11 @@ namespace Kernel
} }
s_instance->for_each_inode( s_instance->for_each_inode(
[](BAN::RefPtr<RamInode> inode) [](BAN::RefPtr<TmpInode> inode)
{ {
if (inode->is_device()) if (inode->is_device())
if (((Device*)inode.ptr())->is_storage_device()) if (((Device*)inode.ptr())->is_storage_device())
if (auto ret = ((StorageDevice*)inode.ptr())->sync_disk_cache(); ret.is_error()) if (auto ret = reinterpret_cast<StorageDevice*>(inode.ptr())->sync_disk_cache(); ret.is_error())
dwarnln("disk sync: {}", ret.error()); dwarnln("disk sync: {}", ret.error());
return BAN::Iteration::Continue; return BAN::Iteration::Continue;
} }
@ -120,24 +118,24 @@ namespace Kernel
void DevFileSystem::add_device(BAN::RefPtr<Device> device) void DevFileSystem::add_device(BAN::RefPtr<Device> device)
{ {
ASSERT(!device->name().contains('/')); ASSERT(!device->name().contains('/'));
MUST(reinterpret_cast<RamDirectoryInode*>(root_inode().ptr())->add_inode(device->name(), device)); MUST(reinterpret_cast<TmpDirectoryInode*>(root_inode().ptr())->link_inode(*device, device->name()));
} }
void DevFileSystem::add_inode(BAN::StringView path, BAN::RefPtr<RamInode> inode) void DevFileSystem::add_inode(BAN::StringView path, BAN::RefPtr<TmpInode> inode)
{ {
ASSERT(!path.contains('/')); ASSERT(!path.contains('/'));
MUST(reinterpret_cast<RamDirectoryInode*>(root_inode().ptr())->add_inode(path, inode)); MUST(reinterpret_cast<TmpDirectoryInode*>(root_inode().ptr())->link_inode(*inode, path));
} }
void DevFileSystem::for_each_device(const BAN::Function<BAN::Iteration(Device*)>& callback) void DevFileSystem::for_each_device(const BAN::Function<BAN::Iteration(Device*)>& callback)
{ {
LockGuard _(m_device_lock); LockGuard _(m_device_lock);
for_each_inode( for_each_inode(
[&](BAN::RefPtr<Kernel::RamInode> inode) [&](BAN::RefPtr<Kernel::TmpInode> inode)
{ {
if (!inode->is_device()) if (!inode->is_device())
return BAN::Iteration::Continue; return BAN::Iteration::Continue;
return callback((Device*)inode.ptr()); return callback(reinterpret_cast<Device*>(inode.ptr()));
} }
); );
} }

4
kernel/kernel/Terminal/TTY.cpp
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@ -33,7 +33,7 @@ namespace Kernel
if (inode_or_error.is_error()) if (inode_or_error.is_error())
{ {
if (inode_or_error.error().get_error_code() == ENOENT) if (inode_or_error.error().get_error_code() == ENOENT)
DevFileSystem::get().add_inode("tty"sv, MUST(RamSymlinkInode::create(DevFileSystem::get(), s_tty->name(), 0666, 0, 0))); DevFileSystem::get().add_inode("tty"sv, MUST(TmpSymlinkInode::create_new(DevFileSystem::get(), 0666, 0, 0, s_tty->name())));
else else
dwarnln("{}", inode_or_error.error()); dwarnln("{}", inode_or_error.error());
return; return;
@ -41,7 +41,7 @@ namespace Kernel
auto inode = inode_or_error.release_value(); auto inode = inode_or_error.release_value();
if (inode->mode().iflnk()) if (inode->mode().iflnk())
MUST(((RamSymlinkInode*)inode.ptr())->set_link_target(name())); MUST(reinterpret_cast<TmpSymlinkInode*>(inode.ptr())->set_link_target(name()));
} }
BAN::ErrorOr<void> TTY::tty_ctrl(int command, int flags) BAN::ErrorOr<void> TTY::tty_ctrl(int command, int flags)