Provided by: freebsd-manpages_9.2+1-1_all
NAME
BUF_LOCK — locks a buffer
SYNOPSIS
#include <sys/param.h> #include <sys/systm.h> #include <sys/uio.h> #include <sys/bio.h> #include <sys/buf.h> int BUF_LOCK(struct buf *bp, int locktype);
DESCRIPTION
The BUF_LOCK() function locks the given buffer. If the lock is already held this call will block until it can acquire the lock unless LK_NOWAIT is set. Its arguments are: bp The buffer to lock. locktype Flags controlling the type of lock. See lockmgr(9) for details.
RETURN VALUES
A value of 0 is returned upon success. See lockmgr(9) for information on non-zero return values.
SEE ALSO
buf(9), BUF_TIMELOCK(9), BUF_UNLOCK(9), lockmgr(9)
AUTHORS
This manual page was written by Chad David <davidc@acns.ab.ca>.