3f47fd767a
Summary:
1.Add configuration to allocate memory from the specified section
2.Replace all memory operations (kmm_) in the vfs with
fs_heap_. When FS_HEAPSIZE > 0, memory is requested for the file system by specifying a configured heap location. By default (i.e. FS_HEAPSIZE=0) fs_heap_ is equivalent to kmm_
Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/****************************************************************************
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* fs/mmap/fs_anonmap.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __FS_MMAP_FS_ANONMAP_H
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#define __FS_MMAP_FS_ANONMAP_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <nuttx/mm/map.h>
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: map_anonymous
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*
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* Description:
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* Support simulation of private anonymous mapping by allocating memory
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* from heap
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*
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* Input Parameters:
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* map Input struct containing user request
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* kernel fs_heap_zalloc or kumm_zalloc
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*
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* Returned Value:
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* On success returns 0. Otherwise negated errno is returned appropriately.
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*
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* ENOMEM
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* Insufficient memory is available to simulate mapping
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*
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****************************************************************************/
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#ifdef CONFIG_FS_ANONMAP
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int map_anonymous(FAR struct mm_map_entry_s *entry, bool kernel);
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#else
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# define map_anonymous(entry, kernel) (-ENOSYS)
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#endif /* CONFIG_FS_ANONMAP */
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#endif /* __FS_MMAP_FS_ANONMAP_H */
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