mptctl_syscall_down man page on Scientific

mptctl_syscall_down man page on Scientific

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MPTCTL_SYSCALL_DOWN(9)	     Message-based devices	MPTCTL_SYSCALL_DOWN(9)

NAME
       mptctl_syscall_down - Down the MPT adapter syscall semaphore.

SYNOPSIS
       int mptctl_syscall_down(MPT_ADAPTER * ioc, int nonblock);

ARGUMENTS
       ioc
	   Pointer to MPT adapter

       nonblock
	   boolean, non-zero if O_NONBLOCK is set

DESCRIPTION
       All of the ioctl commands can potentially sleep, which is illegal with
       a spinlock held, thus we perform mutual exclusion here.

       Returns negative errno on error, or zero for success.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013		MPTCTL_SYSCALL_DOWN(9)

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