From: Chas Williams <chas@cmf.nrl.navy.mil>
Date: Wed, 7 Sep 2005 18:43:25 +0000 (+0000)
Subject: STABLE14-linux-root-fix-reval-20050907
X-Git-Tag: openafs-stable-1_4_0-rc4~10
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=be72ae9a8ac0d2b9bfe3c703281141d92fb96de0;p=packages%2Fo%2Fopenafs.git

STABLE14-linux-root-fix-reval-20050907

FIXES 21390

revalidate the root vnode correctly so if we become replicated we don't lose


(cherry picked from commit 6d6789345ecab70c973cea46b5b262e92e153498)
---

diff --git a/src/afs/afs_daemons.c b/src/afs/afs_daemons.c
index dcb3d46cd..fc1ad7329 100644
--- a/src/afs/afs_daemons.c
+++ b/src/afs/afs_daemons.c
@@ -310,7 +310,50 @@ afs_CheckRootVolume(void)
 		 * directory is /afs.
 		 */
 #ifdef AFS_LINUX20_ENV
-		printk("afs_CheckVolume():  afs_root changed.\n");
+		{
+		    struct vrequest treq;
+		    struct vattr vattr;
+		    cred_t *credp;
+		    struct dentry *dp;
+		    struct vcache *vcp;
+		    
+		    afs_rootFid.Fid.Volume = volid;
+		    afs_rootFid.Fid.Vnode = 1;
+		    afs_rootFid.Fid.Unique = 1;
+		    
+		    credp = crref();
+		    if (afs_InitReq(&treq, credp))
+			goto out;
+		    vcp = afs_GetVCache(&afs_rootFid, &treq, NULL, NULL);
+		    if (!vcp)
+			goto out;
+		    afs_getattr(vcp, &vattr, credp);
+		    afs_fill_inode(AFSTOV(vcp), &vattr);
+		    
+		    dp = d_find_alias(AFSTOV(afs_globalVp));
+		    
+#if defined(AFS_LINUX24_ENV)
+		    spin_lock(&dcache_lock);
+#if defined(AFS_LINUX26_ENV)
+		    spin_lock(&dp->d_lock);
+#endif
+#endif
+		    list_del_init(&dp->d_alias);
+		    list_add(&dp->d_alias, &(AFSTOV(vcp)->i_dentry));
+		    dp->d_inode = AFSTOV(vcp);
+#if defined(AFS_LINUX24_ENV)
+#if defined(AFS_LINUX26_ENV)
+		    spin_unlock(&dp->d_lock);
+#endif
+		    spin_unlock(&dcache_lock);
+#endif
+		    dput(dp);
+		    
+		    AFS_FAST_RELE(afs_globalVp);
+		    afs_globalVp = vcp;
+		out:
+		    crfree(credp);
+		}
 #else
 		AFS_FAST_RELE(afs_globalVp);
 		afs_globalVp = 0;