Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved.

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$FreeBSD$

.Dd July 9, 2001 .Dt BUF_LOCK 9 .Os .Sh NAME .Nm BUF_LOCK .Nd "locks a buffer" .Sh SYNOPSIS n sys/param.h n sys/systm.h n sys/uio.h n sys/bio.h n sys/buf.h .Ft int .Fn BUF_LOCK "struct buf *bp" "int locktype" .Sh DESCRIPTION The .Fn BUF_LOCK function locks the given buffer. If the lock is already held this call will block until it can acquire the lock unless .Dv LK_NOWAIT is set.

p Its arguments are: l -tag -width ".Fa locktype" t Fa bp The buffer to lock. t Fa locktype Flags controlling the type of lock. See .Xr lockmgr 9 for details. .El .Sh RETURN VALUES A value of 0 is returned upon success. See .Xr lockmgr 9 for information on non-zero return values. .Sh SEE ALSO .Xr buf 9 , .Xr BUF_TIMELOCK 9 , .Xr BUF_UNLOCK 9 , .Xr lockmgr 9 .Sh AUTHORS This manual page was written by .An Chad David Aq davidc@acns.ab.ca .