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Code Releases Activity

Support for read-only.

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This commit is contained in:
Alasdair Kergon 2002-01-07 22:28:36 +00:00
parent 75e5ea90c2
commit 2bc25b546a
2 changed files with 34 additions and 2 deletions
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33
lib/activate/activate.c
View File

@ -73,6 +73,21 @@ int lv_active(struct logical_volume *lv)
return info.exists;
}
int lv_suspended(struct logical_volume *lv)
{
int r = -1;
struct dm_info info;
if (!lv_info(lv, &info)) {
stack;
return r;
}
log_very_verbose("%s is%s suspended", lv->name,
info.suspended ? "":" not");
return info.suspended;
}
int lv_open_count(struct logical_volume *lv)
{
int r = -1;
@ -163,6 +178,11 @@ int _load(struct logical_volume *lv, int task)
}
}
if (!(lv->status & LVM_WRITE) && !dm_task_set_ro(dmt))
log_error("Failed to set %s read-only during activation.",
lv->name);
if (!(r = dm_task_run(dmt)))
stack;
@ -211,7 +231,7 @@ int lv_reactivate(struct logical_volume *lv)
if (test_mode())
return 0;
if (!_suspend(lv, 1)) {
if (!lv_suspended(lv) && !_suspend(lv, 1)) {
stack;
return 0;
}
@ -267,7 +287,18 @@ int activate_lvs_in_vg(struct volume_group *vg)
int lv_update_write_access(struct logical_volume *lv)
{
struct dm_info info;
if (!lv_info(lv, &info)) {
stack;
return 0;
}
if (!info.exists || info.suspended)
/* Noop */
return 1;
return lv_reactivate(lv);
}
int deactivate_lvs_in_vg(struct volume_group *vg)

1
lib/activate/activate.h
View File

@ -12,6 +12,7 @@
/* FIXME Snapshot handling? */
int lv_active(struct logical_volume *lv);
int lv_suspended(struct logical_volume *lv);
int lv_open_count(struct logical_volume *lv);
int lv_info(struct logical_volume *lv, struct dm_info *info);