cbf55001b2
Rename functions in include/net/ll_poll.h to busy wait. Clarify documentation about expected power use increase. Rename POLL_LL to POLL_BUSY_LOOP. Add need_resched() testing to poll/select busy loops. Note, that in select and poll can_busy_poll is dynamic and is updated continuously to reflect the existence of supported sockets with valid queue information. Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
41 lines
795 B
C
41 lines
795 B
C
#ifndef __ASM_GENERIC_POLL_H
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#define __ASM_GENERIC_POLL_H
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/* These are specified by iBCS2 */
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#define POLLIN 0x0001
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#define POLLPRI 0x0002
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#define POLLOUT 0x0004
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#define POLLERR 0x0008
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#define POLLHUP 0x0010
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#define POLLNVAL 0x0020
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/* The rest seem to be more-or-less nonstandard. Check them! */
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#define POLLRDNORM 0x0040
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#define POLLRDBAND 0x0080
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#ifndef POLLWRNORM
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#define POLLWRNORM 0x0100
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#endif
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#ifndef POLLWRBAND
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#define POLLWRBAND 0x0200
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#endif
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#ifndef POLLMSG
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#define POLLMSG 0x0400
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#endif
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#ifndef POLLREMOVE
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#define POLLREMOVE 0x1000
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#endif
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#ifndef POLLRDHUP
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#define POLLRDHUP 0x2000
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#endif
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#define POLLFREE 0x4000 /* currently only for epoll */
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#define POLL_BUSY_LOOP 0x8000
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struct pollfd {
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int fd;
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short events;
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short revents;
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};
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#endif /* __ASM_GENERIC_POLL_H */
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