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    Subject[46/68] eCryptfs: Copy up lower inode attrs in getattr
    2.6.32-longterm review patch.  If anyone has any objections, please let us know.

    ------------------

    From: Tyler Hicks <tyhicks@linux.vnet.ibm.com>

    commit 55f9cf6bbaa682958a7dd2755f883b768270c3ce upstream.

    The lower filesystem may do some type of inode revalidation during a
    getattr call. eCryptfs should take advantage of that by copying the
    lower inode attributes to the eCryptfs inode after a call to
    vfs_getattr() on the lower inode.

    I originally wrote this fix while working on eCryptfs on nfsv3 support,
    but discovered it also fixed an eCryptfs on ext4 nanosecond timestamp
    bug that was reported.

    https://bugs.launchpad.net/bugs/613873

    Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    fs/ecryptfs/inode.c | 2 ++
    1 file changed, 2 insertions(+)

    --- a/fs/ecryptfs/inode.c
    +++ b/fs/ecryptfs/inode.c
    @@ -988,6 +988,8 @@ int ecryptfs_getattr(struct vfsmount *mn
    rc = vfs_getattr(ecryptfs_dentry_to_lower_mnt(dentry),
    ecryptfs_dentry_to_lower(dentry), &lower_stat);
    if (!rc) {
    + fsstack_copy_attr_all(dentry->d_inode,
    + ecryptfs_inode_to_lower(dentry->d_inode), NULL);
    generic_fillattr(dentry->d_inode, stat);
    stat->blocks = lower_stat.blocks;
    }



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