This is required for CRIU to migrate a mount point, when write end in user space is closed. To be able to migrate such mount, read end of the pipe have to be searched within autofs master process, and pipe inode will be used as a key.
Signed-off-by: Stanislav Kinsburskiy <[email protected]> --- fs/autofs4/inode.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c index a3ae0b2..16f875a 100644 --- a/fs/autofs4/inode.c +++ b/fs/autofs4/inode.c @@ -77,6 +77,10 @@ static int autofs4_show_options(struct seq_file *m, struct dentry *root) return 0; seq_printf(m, ",fd=%d", sbi->pipefd); + if (sbi->pipe) + seq_printf(m, ",pipe_ino=%ld", sbi->pipe->f_inode->i_ino); + else + seq_printf(m, ",pipe_ino=-1"); if (!uid_eq(root_inode->i_uid, GLOBAL_ROOT_UID)) seq_printf(m, ",uid=%u", from_kuid_munged(&init_user_ns, root_inode->i_uid)); -- 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/
