Comments (2)
ti-mo
commented on July 3, 2024
Hi @notrobpike, could you show a small reproducer to demonstrate this behaviour?
BPF object IDs are system-wide. Calling NewMapFromID() multiple times will yield independent *Map objects, each represented by their own unique fd, pointing to the same map within the kernel. Closing one of the Maps cannot influence any of the others.
NewMapFromFD() clones an fd, wraps it in a *Map and closes the original fd to prevent it from being closed underneath us. This is completely different from NewMapFromID()'s functionality.
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ti-mo
commented on July 3, 2024
Moved to #1368.
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