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Reinstate full PV size when removing from VG.

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Support loopfiles for testing.
Complete the pv_segment support.
This commit is contained in:
Alasdair Kergon
2005-05-03 17:28:23 +00:00
parent 1d76599a94
commit 15db9fcfbf
29 changed files with 625 additions and 130 deletions
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34
lib/device/dev-io.c
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@@ -222,11 +222,25 @@ static int _aligned_io(struct device_area *where, void *buffer,
return 1;
}
/*-----------------------------------------------------------------
* Public functions
*---------------------------------------------------------------*/
static int _dev_get_size_file(const struct device *dev, uint64_t *size)
{
const char *name = dev_name(dev);
struct stat info;
int dev_get_size(const struct device *dev, uint64_t *size)
if (stat(name, &info)) {
log_sys_error("stat", name);
return 0;
}
*size = info.st_size;
*size >>= SECTOR_SHIFT; /* Convert to sectors */
log_very_verbose("%s: size is %" PRIu64 " sectors", name, *size);
return 1;
}
static int _dev_get_size_dev(const struct device *dev, uint64_t *size)
{
int fd;
const char *name = dev_name(dev);
@@ -252,6 +266,18 @@ int dev_get_size(const struct device *dev, uint64_t *size)
return 1;
}
/*-----------------------------------------------------------------
* Public functions
*---------------------------------------------------------------*/
int dev_get_size(const struct device *dev, uint64_t *size)
{
if ((dev->flags & DEV_REGULAR))
return _dev_get_size_file(dev, size);
else
return _dev_get_size_dev(dev, size);
}
/* FIXME Unused
int dev_get_sectsize(struct device *dev, uint32_t *size)
{