diff options
Diffstat (limited to 'sys/kern/vfs_cache.c')
| -rw-r--r-- | sys/kern/vfs_cache.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/sys/kern/vfs_cache.c b/sys/kern/vfs_cache.c index 160a6b3995a..7781cfb2f62 100644 --- a/sys/kern/vfs_cache.c +++ b/sys/kern/vfs_cache.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vfs_cache.c,v 1.43 2015/01/12 20:00:11 tedu Exp $ */ +/* $OpenBSD: vfs_cache.c,v 1.44 2015/01/16 17:05:49 tedu Exp $ */ /* $NetBSD: vfs_cache.c,v 1.13 1996/02/04 02:18:09 christos Exp $ */ /* @@ -448,10 +448,6 @@ cache_purge(struct vnode *vp) /* * Cache flush, a whole filesystem; called when filesys is umounted to * remove entries that would now be invalid - * - * The line "nxtcp = nchhead" near the end is to avoid potential problems - * if the cache lru chain is modified while we are dumping the - * inode. This makes the algorithm O(n^2), but do you think I care? */ void cache_purgevfs(struct mount *mp) @@ -460,24 +456,20 @@ cache_purgevfs(struct mount *mp) /* whack the regular entries */ for (ncp = TAILQ_FIRST(&nclruhead); ncp != NULL; ncp = nxtcp) { + nxtcp = TAILQ_NEXT(ncp, nc_lru); if (ncp->nc_dvp == NULL || ncp->nc_dvp->v_mount != mp) { - nxtcp = TAILQ_NEXT(ncp, nc_lru); continue; } /* free the resources we had */ cache_zap(ncp); - /* cause rescan of list, it may have altered */ - nxtcp = TAILQ_FIRST(&nclruhead); } /* whack the negative entries */ for (ncp = TAILQ_FIRST(&nclruneghead); ncp != NULL; ncp = nxtcp) { + nxtcp = TAILQ_NEXT(ncp, nc_neg); if (ncp->nc_dvp == NULL || ncp->nc_dvp->v_mount != mp) { - nxtcp = TAILQ_NEXT(ncp, nc_neg); continue; } /* free the resources we had */ cache_zap(ncp); - /* cause rescan of list, it may have altered */ - nxtcp = TAILQ_FIRST(&nclruneghead); } } |