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Kernel Space: timerfd() and System Call Review

Aug 23, 2007, 11:15 (0 Talkback[s])
(Other stories by Jonathan Corbet)

"One of the fundamental principles of Linux kernel development is that user-space interfaces are set in stone. Once an API has been made available to user space, it must, for all practical purposes, be supported (without breaking applications) indefinitely. There have been times when this rule has been broken, but, even in the areas known for trouble (sysfs, for example), the number of times that the user-space API has been broken has remained relatively small. Related links

"Now consider the timerfd() system call, which was added to the 2.6.22 kernel..."

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