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Add pv_read_path, a proposed external LVM library function to take a device path and return a PV handle

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This commit is contained in:
Dave Wysochanski 2007-07-11 23:33:12 +00:00
parent 49cae61254
commit 993e30a7de
3 changed files with 24 additions and 4 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.27 -
================================
Add pv_read_path external library function.
Tidy clvmd-openais of redundant bits, and improve an error report.
Cope with find_seg_by_le() failure in check_lv_segments().
Call dev_iter_destroy() if _process_all_devs() is interrupted by sigint.

23
lib/metadata/metadata.c
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@ -72,7 +72,6 @@ static int _add_pv_to_vg(struct volume_group *vg, const char *pv_name)
struct physical_volume *pv;
struct format_instance *fid = vg->fid;
struct dm_pool *mem = fid->fmt->cmd->mem;
struct list mdas;
log_verbose("Adding physical volume '%s' to volume group '%s'",
pv_name, vg->name);
@ -82,8 +81,7 @@ static int _add_pv_to_vg(struct volume_group *vg, const char *pv_name)
return 0;
}
list_init(&mdas);
if (!(pv = _pv_read(fid->fmt->cmd, pv_name, &mdas, NULL, 1))) {
if (!(pv = pv_read_path(fid->fmt->cmd, pv_name))) {
log_error("%s not identified as an existing physical volume",
pv_name);
return 0;
@ -1842,3 +1840,22 @@ uint32_t vg_status(vg_t *vg)
{
return vg->status;
}
/**
* pv_read_path - Given a device path return a PV handle if it is a PV
* @cmd - handle to the LVM command instance
* @pv_name - device path to read for the PV
*
* Returns:
* NULL - device path does not contain a valid PV
* non-NULL - PV handle corresponding to device path
*
*/
pv_t *pv_read_path(const struct cmd_context *cmd, const char *pv_name)
{
struct list mdas;
list_init(&mdas);
return _pv_read(cmd, pv_name, &mdas, NULL, 1);
}

4
lib/metadata/metadata.h
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@ -638,7 +638,7 @@ char *generate_lv_name(struct volume_group *vg, const char *format,
char *buffer, size_t len);
/*
* Gets/Sets for external LVM library
* Begin skeleton for external LVM library
*/
struct id pv_id(pv_t *pv);
const struct format_type *pv_format_type(pv_t *pv);
@ -654,4 +654,6 @@ uint32_t pv_pe_alloc_count(pv_t *pv);
uint32_t vg_status(vg_t *vg);
pv_t *pv_read_path(const struct cmd_context *cmd, const char *pv_name);
#endif