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Kernel: Remove sys$shbuf_set_volatile() and userland wrappers

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There are no remaining users of this syscall so let's remove it! :^)
This commit is contained in:
Andreas Kling 2021-01-16 14:39:53 +01:00
parent c71807a3fc
commit de31e82f97
9 changed files with 0 additions and 77 deletions
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37
Kernel/Syscalls/shbuf.cpp
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@ -165,41 +165,4 @@ int Process::sys$shbuf_seal(int shbuf_id)
return 0;
}
int Process::sys$shbuf_set_volatile(int shbuf_id, bool state)
{
REQUIRE_PROMISE(shared_buffer);
LOCKER(shared_buffers().lock());
auto it = shared_buffers().resource().find(shbuf_id);
if (it == shared_buffers().resource().end())
return -EINVAL;
auto& shared_buffer = *(*it).value;
if (!shared_buffer.is_shared_with(m_pid))
return -EPERM;
#ifdef SHARED_BUFFER_DEBUG
klog() << "Set shared buffer " << shbuf_id << " volatile: " << state;
#endif
bool was_purged = false;
auto set_volatile = [&]() -> int {
switch (shared_buffer.set_volatile_all(state, was_purged)) {
case SharedBuffer::SetVolatileError::Success:
break;
case SharedBuffer::SetVolatileError::NotPurgeable:
return -EPERM;
case SharedBuffer::SetVolatileError::OutOfMemory:
return -ENOMEM;
case SharedBuffer::SetVolatileError::NotMapped:
return -EINVAL;
}
return 0;
};
if (!state) {
if (int err = set_volatile())
return err;
return was_purged ? 1 : 0;
}
return set_volatile();
}
}