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BUF_ISLOCKED(9) | Kernel Developer's Manual | BUF_ISLOCKED(9) |
NAME¶
BUF_ISLOCKED — returns the state of the lock linked to the bufferSYNOPSIS¶
#include <sys/param.h>#include <sys/systm.h>
#include <sys/uio.h>
#include <sys/bio.h>
#include <sys/buf.h> int
BUF_ISLOCKED(struct buf *bp);
DESCRIPTION¶
The BUF_ISLOCKED() function returns the status of the lock linked to the buffer in relation to curthread. It can return:LK_EXCLUSIVE
- An exclusive lock is held by curthread.
LK_EXCLOTHER
- An exclusive lock is held by someone other than curthread
LK_SHARED
- A shared lock is held.
0
- The lock is not held by anyone.
SEE ALSO¶
lockstatus(9), buf(9), BUF_LOCK(9), BUF_UNLOCK(9), lockmgr(9)AUTHORS¶
This manual page was written by Attilio Rao ⟨attilio@FreeBSD.org⟩.January 22, 2008 | Debian |