X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=mdmon.h;h=e4904baa438b389e3837f2498e80ad909248d8bd;hb=e8a70c89585ddca2bcb4160808f64506c64df13b;hp=965f6438aea6cc4c80a26d74abc38c1c19e4f3e7;hpb=2e735d198233a67f305862f72e3a5d0f0c3c548c;p=thirdparty%2Fmdadm.git diff --git a/mdmon.h b/mdmon.h index 965f6438..e4904baa 100644 --- a/mdmon.h +++ b/mdmon.h @@ -1,3 +1,22 @@ +/* + * mdmon - monitor external metadata arrays + * + * Copyright (C) 2007-2008 Neil Brown + * Copyright (C) 2007-2008 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + */ enum array_state { clear, inactive, suspended, readonly, read_auto, clean, active, write_pending, active_idle, bad_word}; @@ -12,10 +31,13 @@ struct active_array { int action_fd; int resync_start_fd; + int metadata_fd; /* for monitoring rw/ro status */ enum array_state prev_state, curr_state, next_state; enum sync_action prev_action, curr_action, next_action; + int check_degraded; /* flag set by mon, read by manage */ + int devnum; unsigned long long resync_start; @@ -32,12 +54,6 @@ struct active_array { * superswitch. All common code sees them as opaque * blobs. */ -struct metadata_update { - int len; - char *buf; - void *space; /* allocated space that monitor will use */ - struct metadata_update *next; -}; extern struct metadata_update *update_queue, *update_queue_handled; #define MD_MAJOR 9 @@ -51,11 +67,28 @@ extern struct md_generic_cmd *active_cmd; void remove_pidfile(char *devname); void do_monitor(struct supertype *container); void do_manager(struct supertype *container); +int make_control_sock(char *devname); +int make_pidfile(char *devname, int o_excl); +extern int socket_hup_requested; +extern int sigterm; int read_dev_state(int fd); +int get_resync_start(struct active_array *a); +int is_container_member(struct mdstat_ent *mdstat, char *container); struct mdstat_ent *mdstat_read(int hold, int start); -extern struct superswitch super_ddf, super_ddf_bvd, super_ddf_svd; - extern int exit_now, manager_ready; +extern int mon_tid, mgr_tid; +extern int monitor_loop_cnt; + +/* helper routine to determine resync completion since MaxSector is a + * moving target + */ +static inline int is_resync_complete(struct active_array *a) +{ + if (a->resync_start >= a->info.component_size) + return 1; + return 0; +} +