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| author | Dave Wysochanski <dwysocha@redhat.com> | 2009-07-26 20:58:11 +0000 |
|---|---|---|
| committer | Dave Wysochanski <dwysocha@redhat.com> | 2009-07-26 20:58:11 +0000 |
| commit | 2642ef553a389c5f3f38dc4dbf12ec5618075dcf (patch) | |
| tree | 32b7010fce6d75cabba8c5376b6b679a4554142c /liblvm | |
| parent | 63b186b6f74b251b0e1854015cf88789e0a319c1 (diff) | |
| download | lvm2-2642ef553a389c5f3f38dc4dbf12ec5618075dcf.tar.gz lvm2-2642ef553a389c5f3f38dc4dbf12ec5618075dcf.tar.xz lvm2-2642ef553a389c5f3f38dc4dbf12ec5618075dcf.zip | |
Add lvm_lv_is_active and lvm_lv_is_suspended.
Return whether an LV is active in the kernel (live table) or suspended
(table suspend).
Author: Dave Wysochanski <dwysocha@redhat.com>
Diffstat (limited to 'liblvm')
| -rw-r--r-- | liblvm/.exported_symbols | 2 | ||||
| -rw-r--r-- | liblvm/lvm.h | 18 | ||||
| -rw-r--r-- | liblvm/lvm_lv.c | 19 |
3 files changed, 39 insertions, 0 deletions
diff --git a/liblvm/.exported_symbols b/liblvm/.exported_symbols index 6708154d..99114230 100644 --- a/liblvm/.exported_symbols +++ b/liblvm/.exported_symbols @@ -17,6 +17,8 @@ lvm_lv_deactivate lvm_lv_get_uuid lvm_lv_get_name lvm_lv_get_size +lvm_lv_is_active +lvm_lv_is_suspended lvm_vg_create lvm_vg_extend lvm_vg_set_extent_size diff --git a/liblvm/lvm.h b/liblvm/lvm.h index 13c723d2..c2fef96a 100644 --- a/liblvm/lvm.h +++ b/liblvm/lvm.h @@ -516,6 +516,24 @@ char *lvm_lv_get_name(const lv_t *lv); */ uint64_t lvm_lv_get_size(const lv_t *lv); +/** + * Get the current activation state of a logical volume. + * + * \param lv + * Logical volume handle. + * \return 1 if the LV is active in the kernel, 0 if not + */ +uint64_t lvm_lv_is_active(const lv_t *lv); + +/** + * Get the current suspended state of a logical volume. + * + * \param lv + * Logical volume handle. + * \return 1 if the LV is suspended in the kernel, 0 if not + */ +uint64_t lvm_lv_is_suspended(const lv_t *lv); + /************************** physical volume handling ************************/ /** diff --git a/liblvm/lvm_lv.c b/liblvm/lvm_lv.c index 78057afe..a2436ed4 100644 --- a/liblvm/lvm_lv.c +++ b/liblvm/lvm_lv.c @@ -19,6 +19,7 @@ #include "defaults.h" #include "segtype.h" #include "locking.h" +#include "activate.h" #include <string.h> @@ -49,6 +50,24 @@ char *lvm_lv_get_name(const lv_t *lv) return name; } +uint64_t lvm_lv_is_active(const lv_t *lv) +{ + struct lvinfo info; + if (lv_info(lv->vg->cmd, lv, &info, 1, 0) && + info.exists && info.live_table) + return 1; + return 0; +} + +uint64_t lvm_lv_is_suspended(const lv_t *lv) +{ + struct lvinfo info; + if (lv_info(lv->vg->cmd, lv, &info, 1, 0) && + info.exists && info.suspended) + return 1; + return 0; +} + /* Set defaults for non-segment specific LV parameters */ static void _lv_set_default_params(struct lvcreate_params *lp, vg_t *vg, const char *lvname, |