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[kernel] Replace buffer_cache with vm_area_buffers

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In order to reduce the amount of tracked state, now use the
vm_area_buffers instead of a VMA with buffer_cache on top.
This commit is contained in:
Justin C. Miller
2020-09-27 15:34:24 -07:00
parent 67ebc58812
commit f7f8bb3f45
14 changed files with 161 additions and 120 deletions
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12
src/kernel/objects/channel.cpp
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@@ -1,16 +1,16 @@
#include "kutil/assert.h"
#include "buffer_cache.h"
#include "kernel_memory.h"
#include "objects/channel.h"
#include "objects/vm_area.h"
using memory::frame_size;
using memory::kernel_buffer_pages;
static constexpr size_t buffer_bytes = kernel_buffer_pages * frame_size;
extern vm_area_buffers g_kernel_buffers;
constexpr size_t buffer_bytes = memory::kernel_buffer_pages * memory::frame_size;
channel::channel() :
m_len(0),
m_data(g_kbuffer_cache.get_buffer()),
m_data(g_kernel_buffers.get_buffer()),
m_buffer(reinterpret_cast<uint8_t*>(m_data), buffer_bytes),
kobject(kobject::type::channel, j6_signal_channel_can_send)
{
@@ -78,7 +78,7 @@ channel::dequeue(size_t *len, void *data)
void
channel::close()
{
g_kbuffer_cache.return_buffer(m_data);
g_kernel_buffers.return_buffer(m_data);
assert_signal(j6_signal_channel_closed);
}