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9201a06027
Before we start disabling acquisition of the big process lock for specific syscalls, make sure to document and assert that all the lock is held during all syscalls.
30 lines
893 B
C++
30 lines
893 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/StringView.h>
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#include <Kernel/FileSystem/VirtualFileSystem.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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KResultOr<FlatPtr> Process::sys$rename(Userspace<const Syscall::SC_rename_params*> user_params)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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REQUIRE_PROMISE(cpath);
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Syscall::SC_rename_params params;
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if (!copy_from_user(¶ms, user_params))
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return EFAULT;
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auto old_path = get_syscall_path_argument(params.old_path);
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if (old_path.is_error())
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return old_path.error();
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auto new_path = get_syscall_path_argument(params.new_path);
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if (new_path.is_error())
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return new_path.error();
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return VirtualFileSystem::the().rename(old_path.value()->view(), new_path.value()->view(), current_directory());
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}
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}
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