CN107209715A - 文件数据访问方法和计算机系统 - Google Patents

文件数据访问方法和计算机系统 Download PDF

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CN107209715A
CN107209715A CN201580001269.4A CN201580001269A CN107209715A CN 107209715 A CN107209715 A CN 107209715A CN 201580001269 A CN201580001269 A CN 201580001269A CN 107209715 A CN107209715 A CN 107209715A
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CN107209715B (zh
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于群
徐君
王元钢
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
    • G06F12/145—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being virtual, e.g. for virtual blocks or segments before a translation mechanism
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/023—Free address space management
    • G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
    • G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G06F12/1027—Address translation using associative or pseudo-associative address translation means, e.g. translation look-aside buffer [TLB]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/062—Securing storage systems
    • G06F3/0622—Securing storage systems in relation to access
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/54—Interprogram communication
    • G06F9/545—Interprogram communication where tasks reside in different layers, e.g. user- and kernel-space
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/0292—User address space allocation, e.g. contiguous or non contiguous base addressing using tables or multilevel address translation means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/10—Providing a specific technical effect
    • G06F2212/1032—Reliability improvement, data loss prevention, degraded operation etc
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/10—Providing a specific technical effect
    • G06F2212/1052—Security improvement
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/46—Caching storage objects of specific type in disk cache
    • G06F2212/463—File
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/65—Details of virtual memory and virtual address translation
    • G06F2212/656—Address space sharing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/68—Details of translation look-aside buffer [TLB]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/68—Details of translation look-aside buffer [TLB]
    • G06F2212/681—Multi-level TLB, e.g. microTLB and main TLB
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/68—Details of translation look-aside buffer [TLB]
    • G06F2212/683—Invalidation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/72—Details relating to flash memory management
    • G06F2212/7201—Logical to physical mapping or translation of blocks or pages
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/72—Details relating to flash memory management
    • G06F2212/7207—Details relating to flash memory management management of metadata or control data

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Human Computer Interaction (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

本发明实施例公开了一种文件数据访问方法和计算机系统。在获取到进程对第一文件数据进行访问的访问信息时，通过页全局目录空间访问进程的页全局目录；基于对所述页全局目录的访问，根据所述第一文件数据在所述文件系统空间中的第一虚拟地址确定所述页全局目录中的第一页全局目录项，并将所述进程的文件页表的基地址链接到所述第一页全局目录项，所述文件页表指向所述文件数据的物理地址，以便所述处理器根据所述第一虚拟地址并通过所述页全局目录和所述文件页表索引得到所述第一文件数据在所述内存中的第一物理地址，以及根据所述第一物理地址对所述第一文件数据进行访问，实现在用户态下对第一文件数据的安全访问。

Description

PCT国内申请，说明书已公开。

Claims (13)

  1. PCT国内申请，权利要求书已公开。
CN201580001269.4A 2015-08-20 2015-08-20 文件数据访问方法和计算机系统 Active CN107209715B (zh)

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PCT/CN2015/087667 WO2017028309A1 (zh) 2015-08-20 2015-08-20 文件数据访问方法和计算机系统

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EP (1) EP3324296B1 (zh)
CN (1) CN107209715B (zh)
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CN109918355A (zh) * 2019-03-05 2019-06-21 杭州前云数据技术有限公司 实现基于对象存储服务的nas的虚拟元数据映射系统和方法
CN111512290A (zh) * 2017-12-27 2020-08-07 华为技术有限公司 文件页表管理技术
CN111666230A (zh) * 2020-05-27 2020-09-15 江苏华创微系统有限公司 在组相联tlb中支持巨页的方法
CN114090273A (zh) * 2020-07-30 2022-02-25 华为技术有限公司 一种进程间通信的方法、装置及计算机存储介质
CN114610232A (zh) * 2020-04-28 2022-06-10 华为技术有限公司 一种存储系统、内存管理方法和管理节点

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US11792307B2 (en) 2018-03-28 2023-10-17 Apple Inc. Methods and apparatus for single entity buffer pool management
US10846224B2 (en) 2018-08-24 2020-11-24 Apple Inc. Methods and apparatus for control of a jointly shared memory-mapped region
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US11606302B2 (en) 2020-06-12 2023-03-14 Apple Inc. Methods and apparatus for flow-based batching and processing
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US11799986B2 (en) 2020-09-22 2023-10-24 Apple Inc. Methods and apparatus for thread level execution in non-kernel space
US11882051B2 (en) 2021-07-26 2024-01-23 Apple Inc. Systems and methods for managing transmission control protocol (TCP) acknowledgements
US11876719B2 (en) 2021-07-26 2024-01-16 Apple Inc. Systems and methods for managing transmission control protocol (TCP) acknowledgements
CN116662224A (zh) * 2022-02-17 2023-08-29 华为技术有限公司 内存访问的方法、装置、存储介质及计算机程序产品

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111512290A (zh) * 2017-12-27 2020-08-07 华为技术有限公司 文件页表管理技术
CN111512290B (zh) * 2017-12-27 2023-09-22 华为技术有限公司 文件页表管理技术
CN109918355A (zh) * 2019-03-05 2019-06-21 杭州前云数据技术有限公司 实现基于对象存储服务的nas的虚拟元数据映射系统和方法
CN109918355B (zh) * 2019-03-05 2020-12-15 杭州前云数据技术有限公司 实现基于对象存储服务的nas的虚拟元数据映射系统和方法
CN114610232A (zh) * 2020-04-28 2022-06-10 华为技术有限公司 一种存储系统、内存管理方法和管理节点
CN111666230A (zh) * 2020-05-27 2020-09-15 江苏华创微系统有限公司 在组相联tlb中支持巨页的方法
CN111666230B (zh) * 2020-05-27 2023-08-01 江苏华创微系统有限公司 在组相联tlb中支持巨页的方法
CN114090273A (zh) * 2020-07-30 2022-02-25 华为技术有限公司 一种进程间通信的方法、装置及计算机存储介质

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Publication number Publication date
EP3324296B1 (en) 2019-12-04
WO2017028309A1 (zh) 2017-02-23
CN107209715B (zh) 2019-09-27
US10606769B2 (en) 2020-03-31
EP3324296A1 (en) 2018-05-23
US20180173643A1 (en) 2018-06-21
EP3324296A4 (en) 2018-08-08

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