diff options
| author | jeff <jeff@FreeBSD.org> | 2003-02-25 03:37:48 +0000 |
|---|---|---|
| committer | jeff <jeff@FreeBSD.org> | 2003-02-25 03:37:48 +0000 |
| commit | 9e4c9a6ce908881b1e6f83cbb906a9fce08dd3ab (patch) | |
| tree | df5eb5e550ba49b92f45eadaca861cb18128ad5d /sys/sys/lockmgr.h | |
| parent | 541937cf7373ff6a61c871266ea041503bb02233 (diff) | |
| download | FreeBSD-src-9e4c9a6ce908881b1e6f83cbb906a9fce08dd3ab.zip FreeBSD-src-9e4c9a6ce908881b1e6f83cbb906a9fce08dd3ab.tar.gz | |
- Add an interlock argument to BUF_LOCK and BUF_TIMELOCK.
- Remove the buftimelock mutex and acquire the buf's interlock to protect
these fields instead.
- Hold the vnode interlock while locking bufs on the clean/dirty queues.
This reduces some cases from one BUF_LOCK with a LK_NOWAIT and another
BUF_LOCK with a LK_TIMEFAIL to a single lock.
Reviewed by: arch, mckusick
Diffstat (limited to 'sys/sys/lockmgr.h')
| -rw-r--r-- | sys/sys/lockmgr.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/sys/lockmgr.h b/sys/sys/lockmgr.h index a186614..26226cd 100644 --- a/sys/sys/lockmgr.h +++ b/sys/sys/lockmgr.h @@ -149,6 +149,7 @@ struct lock { */ #define LK_RETRY 0x00020000 /* vn_lock: retry until locked */ #define LK_THISLAYER 0x00040000 /* vn_lock: lock/unlock only current layer */ +#define LK_INTERNAL 0x00080000/* The internal lock is already held */ /* * Internal state flags corresponding to lk_sharecount, and lk_waitcount |
