57 lines
2.1 KiB
C
57 lines
2.1 KiB
C
/*******************************************************************************
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Copyright (c) 2013 NVIDIA Corporation
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to
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deal in the Software without restriction, including without limitation the
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rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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sell copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*******************************************************************************/
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#include "uvm_linux.h"
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#if UVM_CGROUP_ACCOUNTING_SUPPORTED()
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#include <linux/memcontrol.h>
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#include <linux/sched/mm.h>
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#endif
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//
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// uvm_linux.c
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//
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// This file, along with conftest.h and umv_linux.h, helps to insulate
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// the (out-of-tree) UVM driver from changes to the upstream Linux kernel.
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//
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#if UVM_CGROUP_ACCOUNTING_SUPPORTED()
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void uvm_memcg_context_start(uvm_memcg_context_t *context, struct mm_struct *mm)
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{
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memset(context, 0, sizeof(*context));
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if (!mm)
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return;
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context->new_memcg = get_mem_cgroup_from_mm(mm);
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context->old_memcg = set_active_memcg(context->new_memcg);
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}
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void uvm_memcg_context_end(uvm_memcg_context_t *context)
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{
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if (!context->new_memcg)
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return;
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set_active_memcg(context->old_memcg);
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mem_cgroup_put(context->new_memcg);
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}
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#endif
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