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Atomic context and kernel API design
Atomic context and kernel API design
[Kernel] Posted Mar 25, 2008 17:05 UTC (Tue) by corbet
An API should refrain from making promises that it cannot keep. A recent episode involving the kernel's in_atomic() macro demonstrates how things can go wrong when a function does not really do what it appears to do. It is also a good excuse to look at an under-documented (but fundamental) aspect of kernel code design. Click below (subscribers only) for the full story.