diff options
| author | Constantine Sapuntzakis <csapuntz@cvs.openbsd.org> | 1998-11-12 04:36:33 +0000 |
|---|---|---|
| committer | Constantine Sapuntzakis <csapuntz@cvs.openbsd.org> | 1998-11-12 04:36:33 +0000 |
| commit | 148576a453179cab53440425a1e224c7ed28647c (patch) | |
| tree | d13d9b6cb8f011bdf01f37c470c39778c23c3cd7 /sys/kern/vfs_sync.c | |
| parent | 0a12e173ebc48873aa6964dd3a91bf32635e5a67 (diff) | |
More soft updates fixes from Kirk McKusick.
Diffstat (limited to 'sys/kern/vfs_sync.c')
| -rw-r--r-- | sys/kern/vfs_sync.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/sys/kern/vfs_sync.c b/sys/kern/vfs_sync.c index 6225232e57a..5c605dbb873 100644 --- a/sys/kern/vfs_sync.c +++ b/sys/kern/vfs_sync.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vfs_sync.c,v 1.4 1998/08/06 19:34:27 csapuntz Exp $ */ +/* $OpenBSD: vfs_sync.c,v 1.5 1998/11/12 04:36:32 csapuntz Exp $ */ /* @@ -59,13 +59,14 @@ /* * The workitem queue. */ -#define SYNCER_MAXDELAY 32 +#define SYNCER_MAXDELAY 60 /* maximum sync delay time */ +#define SYNCER_DEFAULT 30 /* default sync delay time */ int syncer_maxdelay = SYNCER_MAXDELAY; /* maximum delay time */ -time_t syncdelay = 30; /* time to delay syncing vnodes */ +time_t syncdelay = SYNCER_DEFAULT; /* time to delay syncing vnodes */ int rushjob; /* number of slots to run ASAP */ static int syncer_delayno = 0; -static long syncer_mask; +static long syncer_last; LIST_HEAD(synclist, vnode); static struct synclist *syncer_workitem_pending; @@ -101,9 +102,16 @@ void vn_initialize_syncerd() { - syncer_workitem_pending = hashinit(syncer_maxdelay, M_VNODE, - &syncer_mask); - syncer_maxdelay = syncer_mask + 1; + int i; + + syncer_last = SYNCER_MAXDELAY + 2; + + syncer_workitem_pending = + malloc(syncer_last * sizeof(struct synclist), + M_VNODE, M_WAITOK); + + for (i = 0; i < syncer_last; i++) + LIST_INIT(&syncer_workitem_pending[i]); } /* @@ -117,9 +125,9 @@ vn_syncer_add_to_worklist(vp, delay) int s, slot; s = splbio(); - if (delay > syncer_maxdelay - 2) - delay = syncer_maxdelay - 2; - slot = (syncer_delayno + delay) & syncer_mask; + if (delay > syncer_maxdelay) + delay = syncer_maxdelay; + slot = (syncer_delayno + delay) % syncer_last; LIST_INSERT_HEAD(&syncer_workitem_pending[slot], vp, v_synclist); splx(s); } @@ -149,7 +157,7 @@ sched_sync(p) s = splbio(); slp = &syncer_workitem_pending[syncer_delayno]; syncer_delayno += 1; - if (syncer_delayno == syncer_maxdelay) + if (syncer_delayno >= syncer_last) syncer_delayno = 0; splx(s); while ((vp = LIST_FIRST(slp)) != NULL) { @@ -157,7 +165,8 @@ sched_sync(p) (void) VOP_FSYNC(vp, p->p_ucred, MNT_LAZY, p); VOP_UNLOCK(vp, 0, p); if (LIST_FIRST(slp) == vp) { - if (LIST_FIRST(&vp->v_dirtyblkhd) == NULL) + if (LIST_FIRST(&vp->v_dirtyblkhd) == NULL && + vp->v_type != VBLK) panic("sched_sync: fsync failed"); /* * Move ourselves to the back of the sync list. |