[RTEMS Project] #3136: Use FIFO for file descriptor free list

[RTEMS trac]

#3136: Use FIFO for file descriptor free list
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 Reporter:  Sebastian Huber  |      Owner:  Sebastian Huber
     Type:  enhancement      |     Status:  assigned
 Priority:  normal           |  Milestone:  4.12.0
Component:  filesystem       |    Version:
 Severity:  normal           |   Keywords:
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 Currently, the free list of file descriptors is organized as a LIFO. In
 erroneous systems which use a file descriptor after a call to close(),
 this increases the likelihood that this error is undetected due to the
 prompt re-use of the file descriptor. The use of a FIFO has the benefit
 that free file descriptors remain on the free list as long as possible.
 This increases the time frame in which an invalid use of a closed file
 descriptor returns an error status.

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Ticket URL: <http://devel.rtems.org/ticket/3136>
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