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authorTrond Myklebust <Trond.Myklebust@netapp.com>2008-03-06 12:34:50 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2008-03-07 14:35:37 -0500
commitc37dcd334c0b0a46a90cfa13b9f69e2aaa89bc09 (patch)
tree0792bbc64fff676c76a696a76a9f703cd9500145 /fs/nfs
parentee1a2c564f67407947e89f1dac75ac0af0ba88c7 (diff)
NFS: Fix the fsid revalidation in nfs_update_inode()
When we detect that we've crossed a mountpoint on the remote server, we must take care not to use that inode to revalidate the fsid on our current superblock. To do so, we label the inode as a remote mountpoint, and check for that in nfs_update_inode(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/inode.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 966a8850aa3..a4c7cf2bff3 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -299,6 +299,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
else
inode->i_op = &nfs_mountpoint_inode_operations;
inode->i_fop = NULL;
+ set_bit(NFS_INO_MOUNTPOINT, &nfsi->flags);
}
} else if (S_ISLNK(inode->i_mode))
inode->i_op = &nfs_symlink_inode_operations;
@@ -1003,8 +1004,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
server = NFS_SERVER(inode);
/* Update the fsid? */
- if (S_ISDIR(inode->i_mode)
- && !nfs_fsid_equal(&server->fsid, &fattr->fsid))
+ if (S_ISDIR(inode->i_mode) &&
+ !nfs_fsid_equal(&server->fsid, &fattr->fsid) &&
+ !test_bit(NFS_INO_MOUNTPOINT, &nfsi->flags))
server->fsid = fattr->fsid;
/*