From 479ac055a18b3122ef3d329f1d761e84da4df9b7 Mon Sep 17 00:00:00 2001 From: jeff Date: Thu, 17 Mar 2005 11:58:43 +0000 Subject: - Lock the clearing of v_data in ufs_reclaim() to prevent a pagefault in ffs_lock() when it acesses v_data without the vnlock. Sponsored by: Isilon Systems, Inc. --- sys/ufs/ufs/ufs_inode.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'sys/ufs') diff --git a/sys/ufs/ufs/ufs_inode.c b/sys/ufs/ufs/ufs_inode.c index b674c94..72a10f1 100644 --- a/sys/ufs/ufs/ufs_inode.c +++ b/sys/ufs/ufs/ufs_inode.c @@ -174,7 +174,13 @@ ufs_reclaim(ap) if (ip->i_dirhash != NULL) ufsdirhash_free(ip); #endif - UFS_IFREE(ump, ip); + /* + * Lock the clearing of v_data so ffs_lock() can inspect it + * prior to obtaining the lock. + */ + VI_LOCK(vp); vp->v_data = 0; + VI_UNLOCK(vp); + UFS_IFREE(ump, ip); return (0); } -- cgit v1.1