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fix(kernel/vfs): support multiple roots

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EnderIce2
2025-04-08 05:04:04 +00:00
parent a1b58bacd8
commit 3315d79742
10 changed files with 118 additions and 39 deletions
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28
Kernel/storage/fs/ramfs.cpp
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@ -33,7 +33,7 @@ namespace vfs
cwk_path_get_basename(Name, &basename, &length);
if (basename == NULL)
{
if (strcmp(Name, "/") == 0)
if (strcmp(Name, RootName.c_str()) == 0)
{
auto &it = Files.at(0);
*Result = &it->Node;
@ -90,6 +90,7 @@ namespace vfs
RAMFSInode *node = new RAMFSInode;
node->Name.assign(basename, length);
node->Mode = Mode;
node->Node = inode;
auto file = Files.insert(std::make_pair(NextInode, node));
assert(file.second == true);
@ -383,25 +384,15 @@ O2 int __ramfs_Destroy(FileSystemInfo *fsi)
return 0;
}
bool MountRAMFS(Inode *Parent, const char *Name, size_t Index)
bool MountRAMFS(FileNode *Parent, const char *Name, size_t Index)
{
vfs::RAMFS *ramfs = new vfs::RAMFS;
ramfs->DeviceID = fs->EarlyReserveDevice();
if (Parent == nullptr)
{
ramfs->Create(nullptr, Name, S_IFDIR | 0755, &Parent);
if (Parent == nullptr)
{
error("Failed to create root inode");
delete ramfs;
return false;
}
}
ramfs->RootName.assign(Name);
FileSystemInfo *fsi = new FileSystemInfo;
fsi->Name = "ramfs";
fsi->RootName = "/";
fsi->RootName = Name;
fsi->Flags = I_FLAG_ROOT | I_FLAG_MOUNTPOINT | I_FLAG_CACHE_KEEP;
fsi->SuperOps.DeleteInode = __ramfs_DestroyInode;
fsi->SuperOps.Destroy = __ramfs_Destroy;
@ -415,7 +406,12 @@ bool MountRAMFS(Inode *Parent, const char *Name, size_t Index)
fsi->Ops.Stat = __ramfs_Stat;
fsi->PrivateData = ramfs;
fs->LateRegisterFileSystem(ramfs->DeviceID, fsi, Parent);
fs->AddRootAt(Parent, Index);
Inode *root = nullptr;
ramfs->Create(nullptr, Name, S_IFDIR | 0755, &root);
fs->LateRegisterFileSystem(ramfs->DeviceID, fsi, root);
fs->AddRootAt(root, Index);
fs->Mount(Parent, root, Name);
return true;
}