table of contents
other versions
| 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¶
| January 2017 | Kernel Hackers Manual 4.8. |