BUF_RECURSED(9) BSD Kernel Developer's Manual BUF_RECURSED(9)NAME
BUF_RECURSED -- checks if the lock linked to the buffer is recursed
SYNOPSIS
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/uio.h>
#include <sys/bio.h>
#include <sys/buf.h>
int
BUF_RECURSED(struct buf *bp);
DESCRIPTION
The BUF_RECURSED() function checks if the lock linked to the given buffer is recursed and returns 1 if the condition is true, 0 otherwise.
Its argument is:
bp The buffer linked to the lock. See lockmgr_recursed(9) for details.
SEE ALSO buf(9), BUF_LOCK(9), BUF_UNLOCK(9), lockmgr(9)AUTHORS
This manual page was written by Attilio Rao <attilio@FreeBSD.org>.
BSD January 22, 2008 BSD
Check Out this Related Man Page
BUF_TIMELOCK(9) BSD Kernel Developer's Manual BUF_TIMELOCK(9)NAME
BUF_TIMELOCK -- 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_TIMELOCK(struct buf *bp, int locktype, char *wmesg, int catch, int timo);
DESCRIPTION
The BUF_TIMELOCK() function locks the given buffer, and limits the amount of time it will sleep to timo and OR's catch into the sleep's pri-
ority. wmesg is the wmesg used in the sleep.
Its arguments are:
bp The buffer to lock.
locktype Flags controlling the type of lock. See lockmgr(9) for details.
wmesg The wmesg used in any sleeps while acquiring the lock.
catch Priority OR'd into the sleep's priority.
timo The timeout for any sleeps encountered during the lock.
RETURN VALUES
A value of 0 is returned on success. See lockmgr(9) for details on non-zero return values.
SEE ALSO buf(9), BUF_LOCK(9), BUF_UNLOCK(9), lockmgr(9)AUTHORS
This manual page was written by Chad David <davidc@acns.ab.ca>.
BSD July 9, 2001 BSD
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