d2fd89962c
Fix gcc warning and add parameter checking when CONFIG_EVENTFD=n: fs/aio.c: In function 'aio_complete': fs/aio.c:955: warning: statement with no effect Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
31 lines
512 B
C
31 lines
512 B
C
/*
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* include/linux/eventfd.h
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*
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* Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org>
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*
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*/
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#ifndef _LINUX_EVENTFD_H
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#define _LINUX_EVENTFD_H
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#ifdef __KERNEL__
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#ifdef CONFIG_EVENTFD
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struct file *eventfd_fget(int fd);
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int eventfd_signal(struct file *file, int n);
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#else /* CONFIG_EVENTFD */
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#define eventfd_fget(fd) ERR_PTR(-ENOSYS)
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static inline int eventfd_signal(struct file *file, int n)
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{ return 0; }
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#endif /* CONFIG_EVENTFD */
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#endif /* __KERNEL__ */
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#endif /* _LINUX_EVENTFD_H */
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