From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sukadev Bhattiprolu Subject: [PATCH 2/2] Add keep_frozen field to struct app_restart_args Date: Tue, 30 Mar 2010 23:56:02 -0700 Message-ID: <20100331065602.GA21318@us.ibm.com> References: <20100331065443.GA21065@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20100331065443.GA21065-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Oren Laadan Cc: Containers List-Id: containers.vger.kernel.org From: Sukadev Bhattiprolu Date: Tue, 30 Mar 2010 23:14:53 -0700 Subject: [PATCH 2/2] Add keep_frozen field to struct app_restart_args Add a field, keep_frozen that callers of app_restart() can use to leave the application frozen after restart. When this field is set, have app_restart() set the RESTART_FROZEN flag to sys_restart(). TODO: For now, this field will be used in LXC containers. A follow-on patch would add a command line option to /bin/restart to let users select this behavior. --- app-checkpoint.h | 3 +++ restart.c | 2 +- 2 files changed, 4 insertions(+), 1 deletions(-) diff --git a/app-checkpoint.h b/app-checkpoint.h index f740085..d2455f3 100644 --- a/app-checkpoint.h +++ b/app-checkpoint.h @@ -1,3 +1,5 @@ +#include +#include struct app_checkpoint_args { int outfd; @@ -19,6 +21,7 @@ struct app_restart_args { int show_status; int copy_status; char *freezer; + int keep_frozen; int infd; int klogfd; int ulogfd; diff --git a/restart.c b/restart.c index 5408152..d5fee0b 100644 --- a/restart.c +++ b/restart.c @@ -914,7 +914,7 @@ static int ckpt_coordinator(struct ckpt_ctx *ctx) if (ckpt_probe_child(root_pid, "root task") < 0) exit(1); - if (ctx->args->freezer) + if (ctx->args->freezer || ctx->args->keep_frozen) flags |= RESTART_FROZEN; if (ctx->args->keep_lsm) flags |= RESTART_KEEP_LSM; -- 1.6.6.1