shaba/lvm2
1
0
Fork 0
mirror of git://sourceware.org/git/lvm2.git synced 2025-03-28 02:50:41 +03:00
Code Releases Activity

Zero first 4k of new LVs.

Browse Source
This commit is contained in:
Alasdair Kergon 2001-11-16 15:38:52 +00:00
parent 79cf96de20
commit fe827798fa
1 changed files with 21 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
tools/lvcreate.c
View File

@ -6,6 +6,7 @@
*/
#include "tools.h"
#include <fcntl.h>
int lvcreate(int argc, char **argv)
{
@ -220,9 +221,8 @@ int lvcreate(int argc, char **argv)
}
*************/
if (!(lv = lv_create(lv_name, status, stripes, stripesize, extents,
vg, pvh)))
return ECMD_FAILED;
if (!(lv = lv_create(lv_name, status, stripes, stripesize, extents,
vg, pvh))) return ECMD_FAILED;
if (arg_count(readahead_ARG)) {
log_verbose("Setting read ahead sectors");
@ -240,23 +240,27 @@ int lvcreate(int argc, char **argv)
if (zero) {
struct device *dev;
/* FIXME 2 blocks */
char buf[4096];
char *name;
memset(buf, 0, sizeof(buf));
log_verbose("Zeroing start of logical volume %s", lv->name);
log_print("WARNING: %s not zeroed", lv->name);
/* FIXME get dev = dev_cache_get(lv->name, fid->cmd->filter); */
/* FIXME Add fsync! */
/******** FIXME Really zero it
if (!(dev_write(dev, 0, sizeof(buf), &buf) == sizeof(buf))) {
log_error("Initialisation of %s failed",
dev_name(dev));
if (!(name = dbg_malloc(NAME_LEN))) {
log_error("Name allocation failed - device not zeroed");
return ECMD_FAILED;
}
**************/
snprintf(name, NAME_LEN, "%s%s/%s", fid->cmd->dev_dir,
lv->vg->name, lv->name);
log_verbose("Zeroing start of logical volume %s", name);
if (!(dev = dev_cache_get(name, NULL))) {
log_error("%s not found: device not zeroed", name);
return ECMD_FAILED;
}
if (!(dev_open(dev, O_WRONLY)))
return ECMD_FAILED;
dev_zero(dev, 0, 4096);
dev_close(dev);
} else
log_print("WARNING: %s not zeroed", lv->name);