发明申请
US20120331242A1 CONSISTENT UNMAPPING OF APPLICATION DATA IN PRESENCE OF CONCURRENT, UNQUIESCED WRITERS AND READERS
有权
一致性撤销同时存在的应用程序数据，不合格的作者和读者
- 专利标题： CONSISTENT UNMAPPING OF APPLICATION DATA IN PRESENCE OF CONCURRENT, UNQUIESCED WRITERS AND READERS
- 专利标题（中）： 一致性撤销同时存在的应用程序数据，不合格的作者和读者
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申请号： US13166486申请日： 2011-06-22
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公开(公告)号： US20120331242A1公开(公告)日： 2012-12-27
- 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： G06F12/02
- IPC分类号： G06F12/02 ; G06F12/00
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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