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2024-05-10 10ebd8556b7990499c896a550e3d416b444211e6

 kernel/include/uapi/linux/eventpoll.h
..
..
@@ -41,6 +41,12 @@
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 #define EPOLLMSG	(__force __poll_t)0x00000400
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 #define EPOLLRDHUP	(__force __poll_t)0x00002000
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+/*
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+ * Internal flag - wakeup generated by io_uring, used to detect recursion back
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+ * into the io_uring poll handler.
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+ */
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+#define EPOLL_URING_WAKE	((__force __poll_t)(1U << 27))
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+
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 /* Set exclusive wakeup mode for the target file descriptor */
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 #define EPOLLEXCLUSIVE	((__force __poll_t)(1U << 28))
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