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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.
27 lines
643 B
C++
27 lines
643 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 <Kernel/FileSystem/FileDescription.h>
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#include <Kernel/Process.h>
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#include <LibC/sys/ioctl_numbers.h>
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namespace Kernel {
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KResultOr<FlatPtr> Process::sys$ioctl(int fd, unsigned request, FlatPtr arg)
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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if (request == FIONBIO) {
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description->set_blocking(arg == 0);
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return KSuccess;
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}
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return description->file().ioctl(*description, request, arg);
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}
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}
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