Frank van Viegen wrote:
> Package: manpages-dev
> Version: 2.34-1
>
> The epoll_ctl(2) man page states:
>
> ERRORS
> EBADF epfd is not a valid file descriptor.
>
> However, based upon actual kernel (2.6.11-9-em64t-p4-smp) behaviour it
> should probably read:
>
> ERRORS
> EBADF fd is not a valid file descriptor.
What makes you think this is true?
Looking into sys_epoll_ctl() in fs/eventpoll.c of 2.6.16 I find
[..]
/* Get the "struct file *" for the eventpoll file */
error = -EBADF;
file = fget(epfd);
if (!file)
goto eexit_1;
[..]
eexit_1:
DNPRINTK(3, (KERN_INFO "[%p] eventpoll: sys_epoll_ctl(%d, %d, %d, %p) =
%d\n",
current, epfd, op, fd, event, error));
return error;
So, looking at the code, EBADF refers to epfd and not to fd, just
as it is documented in the manual page.
Regards,
Joey
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