发明授权
US09146766B2 Consistent unmapping of application data in presence of concurrent, unquiesced writers and readers
有权
在存在并发的，不相关的作家和读者的情况下，应用数据的一致性失真
- 专利标题： Consistent unmapping of application data in presence of concurrent, unquiesced writers and readers
- 专利标题（中）： 在存在并发的，不相关的作家和读者的情况下，应用数据的一致性失真
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申请号： US13166486申请日： 2011-06-22
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公开(公告)号： US09146766B2公开(公告)日： 2015-09-29
- 发明人: Faraz Shaikh , Murali Vilayannur , Satyam B. Vaghani , Kiran Joshi
- 申请人： Faraz Shaikh , Murali Vilayannur , Satyam B. Vaghani , Kiran Joshi
- 申请人地址： US CA Palo Alto
- 专利权人： VMware, Inc.
- 当前专利权人： VMware, Inc.
- 当前专利权人地址： US CA Palo Alto
- 主分类号： G06F9/455
- IPC分类号： G06F9/455 ; G06F12/02 ; G06F3/06
摘要：
Free storage blocks previously allocated to a logical block device are released back to an underlying storage system supporting the logical block device in a manner that does not conflict with write operations that may be issued to the free storage blocks at about the same time. According to a first technique, write operations on the same storage blocks to be released are paused until the underlying storage system has completed the releasing operation or, if the write operations are issued earlier than when the underlying storage system actually performs the releasing operation, such storage blocks are not released. According to a second technique, a special file is allocated the free storage blocks, which are then made available for safe releasing.
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