i#5843 scheduler: Mark more maybe-blocking syscalls #6380
Merged
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Add epoll_pwait2, sendmmsg, recvmmsg, and membarrier to the maybe-blocking syscall list. These don't always block: e.g., membarrier has some sub-operations for which it never blocks.
Updates the DR syscall headers to include recently added syscalls, including epoll_pwait2. The uapi headers are only partly updated due to lack of easy access to a header to fill in the other SYS_ defines.
Issue: #5843