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Code Releases Activity

additional activation functions

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This commit is contained in:
Alasdair Kergon 2004-03-08 18:54:13 +00:00
parent 814643d8a2
commit 658b58129b
2 changed files with 98 additions and 12 deletions
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100
lib/activate/activate.c
View File

@ -62,10 +62,18 @@ int lvs_in_vg_opened(struct volume_group *vg)
{
return 0;
}
int lv_suspend(struct cmd_context *cmd, const char *lvid_s)
{
return 1;
}
int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s)
{
return 1;
}
int lv_resume(struct cmd_context *cmd, const char *lvid_s)
{
return 1;
}
int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s)
{
return 1;
@ -74,10 +82,19 @@ int lv_deactivate(struct cmd_context *cmd, const char *lvid_s)
{
return 1;
}
int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s,
int *activate_lv)
{
return 1;
}
int lv_activate(struct cmd_context *cmd, const char *lvid_s)
{
return 1;
}
int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s)
{
return 1;
}
int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv)
{
@ -339,7 +356,7 @@ static int _lv_open_count(struct logical_volume *lv)
}
/* FIXME Need to detect and handle an lv rename */
static int _lv_activate(struct logical_volume *lv)
static int _lv_activate_lv(struct logical_volume *lv)
{
int r;
struct dev_manager *dm;
@ -373,7 +390,7 @@ static int _lv_deactivate(struct logical_volume *lv)
return r;
}
static int _lv_suspend(struct logical_volume *lv)
static int _lv_suspend_lv(struct logical_volume *lv)
{
int r;
struct dev_manager *dm;
@ -428,8 +445,8 @@ int lvs_in_vg_opened(struct volume_group *vg)
return count;
}
/* These return success if the device is not active */
int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s)
static int _lv_suspend(struct cmd_context *cmd, const char *lvid_s,
int error_if_not_suspended)
{
struct logical_volume *lv;
struct lvinfo info;
@ -451,10 +468,10 @@ int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s)
}
if (!info.exists || info.suspended)
return 1;
return error_if_not_suspended ? 0 : 1;
memlock_inc();
if (!_lv_suspend(lv)) {
if (!_lv_suspend_lv(lv)) {
memlock_dec();
fs_unlock();
return 0;
@ -463,7 +480,19 @@ int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s)
return 1;
}
int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s)
/* Returns success if the device is not active */
int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s)
{
return _lv_suspend(cmd, lvid_s, 0);
}
int lv_suspend(struct cmd_context *cmd, const char *lvid_s)
{
return _lv_suspend(cmd, lvid_s, 1);
}
static int _lv_resume(struct cmd_context *cmd, const char *lvid_s,
int error_if_not_active)
{
struct logical_volume *lv;
struct lvinfo info;
@ -485,9 +514,9 @@ int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s)
}
if (!info.exists || !info.suspended)
return 1;
return error_if_not_active ? 0 : 1;
if (!_lv_activate(lv))
if (!_lv_activate_lv(lv))
return 0;
memlock_dec();
@ -496,6 +525,17 @@ int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s)
return 1;
}
/* Returns success if the device is not active */
int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s)
{
return _lv_resume(cmd, lvid_s, 0);
}
int lv_resume(struct cmd_context *cmd, const char *lvid_s)
{
return _lv_resume(cmd, lvid_s, 1);
}
int lv_deactivate(struct cmd_context *cmd, const char *lvid_s)
{
struct logical_volume *lv;
@ -535,7 +575,31 @@ int lv_deactivate(struct cmd_context *cmd, const char *lvid_s)
return r;
}
int lv_activate(struct cmd_context *cmd, const char *lvid_s)
/* Test if LV passes filter */
int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s,
int *activate_lv)
{
struct logical_volume *lv;
if (!activation())
goto activate;
if (!(lv = lv_from_lvid(cmd, lvid_s)))
return 0;
if (!_passes_activation_filter(cmd, lv)) {
log_verbose("Not activating %s/%s due to config file settings",
lv->vg->name, lv->name);
*activate_lv = 0;
return 1;
}
activate:
*activate_lv = 1;
return 1;
}
static int _lv_activate(struct cmd_context *cmd, const char *lvid_s, int filter)
{
struct logical_volume *lv;
struct lvinfo info;
@ -547,7 +611,7 @@ int lv_activate(struct cmd_context *cmd, const char *lvid_s)
if (!(lv = lv_from_lvid(cmd, lvid_s)))
return 0;
if (!_passes_activation_filter(cmd, lv)) {
if (filter && !_passes_activation_filter(cmd, lv)) {
log_verbose("Not activating %s/%s due to config file settings",
lv->vg->name, lv->name);
return 0;
@ -567,13 +631,25 @@ int lv_activate(struct cmd_context *cmd, const char *lvid_s)
return 1;
memlock_inc();
r = _lv_activate(lv);
r = _lv_activate_lv(lv);
memlock_dec();
fs_unlock();
return r;
}
/* Activate LV */
int lv_activate(struct cmd_context *cmd, const char *lvid_s)
{
return _lv_activate(cmd, lvid_s, 0);
}
/* Activate LV only if it passes filter */
int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s)
{
return _lv_activate(cmd, lvid_s, 1);
}
int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv)
{
struct lvinfo info;

10
lib/activate/activate.h
View File

@ -30,9 +30,12 @@ int library_version(char *version, size_t size);
void activation_exit(void);
int lv_suspend(struct cmd_context *cmd, const char *lvid_s);
int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s);
int lv_resume(struct cmd_context *cmd, const char *lvid_s);
int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s);
int lv_activate(struct cmd_context *cmd, const char *lvid_s);
int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s);
int lv_deactivate(struct cmd_context *cmd, const char *lvid_s);
int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv);
@ -41,6 +44,13 @@ int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv);
* Returns 1 if info structure has been populated, else 0.
*/
int lv_info(const struct logical_volume *lv, struct lvinfo *info);
/*
* Returns 1 if activate_lv has been set: 1 = activate; 0 = don't.
*/
int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s,
int *activate_lv);
/*
* Returns 1 if percent has been set, else 0.
*/