4.2-stable review patch. If anyone has any objections, please let me know.
------------------ From: Miklos Szeredi <[email protected]> commit 1c8a47df36d72ace8cf78eb6c228aa0f8027d3c2 upstream. If two overlayfs filesystems are stacked on top of each other, then we need recursion in ovl_d_select_inode(). I guess d_backing_inode() is supposed to do that. But currently it doesn't and that functionality is open coded in vfs_open(). This is now copied into ovl_d_select_inode() to fix this regression. Reported-by: Alban Crequy <[email protected]> Signed-off-by: Miklos Szeredi <[email protected]> Fixes: 4bacc9c9234c ("overlayfs: Make f_path always point to the overlay...") Cc: David Howells <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- fs/overlayfs/inode.c | 3 +++ 1 file changed, 3 insertions(+) --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -363,6 +363,9 @@ struct inode *ovl_d_select_inode(struct ovl_path_upper(dentry, &realpath); } + if (realpath.dentry->d_flags & DCACHE_OP_SELECT_INODE) + return realpath.dentry->d_op->d_select_inode(realpath.dentry, file_flags); + return d_backing_inode(realpath.dentry); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
