File system location verification using a sentinel
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United States of America Patent
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Mar 25, 2014
Grant Date -
Dec 13, 2012
app pub date -
Aug 23, 2012
filing date -
Jun 11, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A new file system is mounted to a mount point of an existing file system implemented in a computational system. A sentinel indicator is stored in the mount point. Prior to initiating an input/output (I/O) operation by a program, a determination is made by the program as to whether the sentinel indicator exists. In response to determining by the program that the sentinel indicator exists, the I/O operation is performed by the program. In certain alternative embodiments, in response to determining by the program that the sentinel indicator exists, the I/O operation is not performed by the program.
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