发明名称 |
Out of user space I/O directly between a host system and a physical adapter using file based linear block address translation |
摘要 |
Enabling user space middleware or applications to pass file name based storage requests directly to a physical I/O Adapter without run-time involvement from the local Operating System (OS)is provided. A mechanism is provided for using a file protection table (FPT) data structure, which may include a file name protection table (FNPT) and file extension protection table (FEPT), to control user space and out of user space Input/Output (I/O) operations. The FNPT has an entry for each file managed by the OS' file system and points to a segment of the FEPT. Each entry in the FEPT may include a protection domain, along with other protection table context information, against which I/O requests may be checked to determine if an application instance that submitted the I/O requests may access the file identified in the I/O requests.
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申请公布号 |
US7577761(B2) |
申请公布日期 |
2009.08.18 |
申请号 |
US20050216832 |
申请日期 |
2005.08.31 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BOYD WILLIAM TODD;HUFFERD JOHN LEWIS;MENA, III AGUSTIN;RECIO RENATO J.;VEGA MADELINE |
分类号 |
G06F3/00;G06F13/00 |
主分类号 |
G06F3/00 |
代理机构 |
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代理人 |
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地址 |
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