BUF_LOCK(9FREEBSD) - man page online | system kernel interfaces

Locks a buffer.

July 9, 2001
BUF_LOCK(9)                       BSD Kernel Developer's Manual                       BUF_LOCK(9)

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 <>.
BSD July 9, 2001 BSD
This manual Reference Other manuals
BUF_LOCK(9freebsd) referred by BUF_ISLOCKED(9freebsd) | BUF_LOCKFREE(9freebsd) | BUF_LOCKINIT(9freebsd) | BUF_RECURSED(9freebsd) | BUF_TIMELOCK(9freebsd) | BUF_UNLOCK(9freebsd) | locking(9freebsd)
refer to buf(9freebsd) | BUF_TIMELOCK(9freebsd) | BUF_UNLOCK(9freebsd) | lockmgr(9freebsd)