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libblkid: add some debug messages 

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2011-05-30 17:20:27 +02:00
parent 10ee593293
commit c13d343279
1 changed files with 13 additions and 2 deletions
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15
shlibs/blkid/src/partitions/partitions.c
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@ -903,9 +903,14 @@ blkid_partition blkid_partlist_devno_to_partition(blkid_partlist ls, dev_t devno
uint64_t start, size;
int i, rc, partno = 0;
if (sysfs_init(&sysfs, devno, NULL))
return NULL;
DBG(DEBUG_LOWPROBE,
printf("triyng to convert devno 0x%llx to partition\n",
(long long) devno));
if (sysfs_init(&sysfs, devno, NULL)) {
DBG(DEBUG_LOWPROBE, printf("failed t init sysfs context\n"));
return NULL;
}
rc = sysfs_read_u64(&sysfs, "size", &size);
if (!rc) {
rc = sysfs_read_u64(&sysfs, "start", &start);
@ -935,6 +940,8 @@ blkid_partition blkid_partlist_devno_to_partition(blkid_partlist ls, dev_t devno
return NULL;
if (partno) {
DBG(DEBUG_LOWPROBE, printf("mapped by DM, using partno %d\n", partno));
/*
* Partition mapped by kpartx does not provide "start" offset
* in /sys, but if we know partno and size of the partition
@ -955,6 +962,8 @@ blkid_partition blkid_partlist_devno_to_partition(blkid_partlist ls, dev_t devno
return NULL;
}
DBG(DEBUG_LOWPROBE, printf("searching by offset/size\n"));
for (i = 0; i < ls->nparts; i++) {
blkid_partition par = &ls->parts[i];
@ -968,6 +977,8 @@ blkid_partition blkid_partlist_devno_to_partition(blkid_partlist ls, dev_t devno
return par;
}
DBG(DEBUG_LOWPROBE, printf("not found partition for device\n"));
return NULL;
}