diff options
Diffstat (limited to 'managemon.c')
| -rw-r--r-- | managemon.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/managemon.c b/managemon.c index 1c9eccc4..9b14d1ec 100644 --- a/managemon.c +++ b/managemon.c @@ -402,6 +402,20 @@ static void manage_container(struct mdstat_ent *mdstat, } } +static int sysfs_open2(char *devnum, char *name, char *attr) +{ + int fd = sysfs_open(devnum, name, attr); + if (fd >= 0) { + /* seq_file in the kernel allocates buffer space + * on the first read. Do that now so 'monitor' + * never needs too. + */ + char buf[200]; + read(fd, buf, sizeof(buf)); + } + return fd; +} + static int disk_init_and_add(struct mdinfo *disk, struct mdinfo *clone, struct active_array *aa) { @@ -409,10 +423,11 @@ static int disk_init_and_add(struct mdinfo *disk, struct mdinfo *clone, return -1; *disk = *clone; - disk->recovery_fd = sysfs_open(aa->info.sys_name, disk->sys_name, "recovery_start"); + disk->recovery_fd = sysfs_open2(aa->info.sys_name, disk->sys_name, + "recovery_start"); if (disk->recovery_fd < 0) return -1; - disk->state_fd = sysfs_open(aa->info.sys_name, disk->sys_name, "state"); + disk->state_fd = sysfs_open2(aa->info.sys_name, disk->sys_name, "state"); if (disk->state_fd < 0) { close(disk->recovery_fd); return -1; @@ -692,11 +707,12 @@ static void manage_new(struct mdstat_ent *mdstat, } } - new->action_fd = sysfs_open(new->info.sys_name, NULL, "sync_action"); - new->info.state_fd = sysfs_open(new->info.sys_name, NULL, "array_state"); - new->resync_start_fd = sysfs_open(new->info.sys_name, NULL, "resync_start"); - new->metadata_fd = sysfs_open(new->info.sys_name, NULL, "metadata_version"); - new->sync_completed_fd = sysfs_open(new->info.sys_name, NULL, "sync_completed"); + new->action_fd = sysfs_open2(new->info.sys_name, NULL, "sync_action"); + new->info.state_fd = sysfs_open2(new->info.sys_name, NULL, "array_state"); + new->resync_start_fd = sysfs_open2(new->info.sys_name, NULL, "resync_start"); + new->metadata_fd = sysfs_open2(new->info.sys_name, NULL, "metadata_version"); + new->sync_completed_fd = sysfs_open2(new->info.sys_name, NULL, "sync_completed"); + dprintf("%s: inst: %s action: %d state: %d\n", __func__, inst, new->action_fd, new->info.state_fd); |