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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-06-09 09:34:19 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-06-09 09:34:19 -0400 |
| commit | 8b4bdcf8995dd92b23d2ec22b32aee8fbbb50e1c (patch) | |
| tree | 8ebe9ec2ed5cb58592097123cf6b34af997316c7 /fs/nfs/inode.c | |
| parent | 8b512d9a88875affe584bb3d2a7a235f84343b9e (diff) | |
| download | op-kernel-dev-8b4bdcf8995dd92b23d2ec22b32aee8fbbb50e1c.zip op-kernel-dev-8b4bdcf8995dd92b23d2ec22b32aee8fbbb50e1c.tar.gz | |
NFS: Store the file system "fsid" value in the NFS super block.
This should enable us to detect if we are crossing a mountpoint in the
case where the server is exporting "nohide" mounts.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/inode.c')
| -rw-r--r-- | fs/nfs/inode.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index fda2b49..1a809f6 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -236,6 +236,7 @@ nfs_get_root(struct super_block *sb, struct nfs_fh *rootfh, struct nfs_fsinfo *f return ERR_PTR(error); } + server->fsid = fsinfo->fattr->fsid; return nfs_fhget(sb, rootfh, fsinfo->fattr); } @@ -1493,6 +1494,7 @@ out: */ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) { + struct nfs_server *server; struct nfs_inode *nfsi = NFS_I(inode); loff_t cur_isize, new_isize; unsigned int invalid = 0; @@ -1511,6 +1513,12 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) if ((inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) goto out_changed; + server = NFS_SERVER(inode); + /* Update the fsid if and only if this is the root directory */ + if (inode == inode->i_sb->s_root->d_inode + && !nfs_fsid_equal(&server->fsid, &fattr->fsid)) + server->fsid = fattr->fsid; + /* * Update the read time so we don't revalidate too often. */ |
