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libblkid: add debug messages when ignore useless devices 

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2017-12-07 12:15:34 +01:00
parent 6418cba457
commit b480afcaba
1 changed files with 6 additions and 2 deletions
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8
libblkid/src/superblocks/superblocks.c
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@ -341,14 +341,18 @@ static int superblocks_probe(blkid_probe pr, struct blkid_chain *chn)
blkid_probe_chain_reset_values(pr, chn);
if (pr->flags & BLKID_FL_NOSCAN_DEV)
if (pr->flags & BLKID_FL_NOSCAN_DEV) {
DBG(LOWPROBE, ul_debug("*** ignore (noscan flag)"));
return BLKID_PROBE_NONE;
}
if (pr->size <= 0 || (pr->size <= 1024 && !S_ISCHR(pr->mode)))
if (pr->size <= 0 || (pr->size <= 1024 && !S_ISCHR(pr->mode))) {
/* Ignore very very small block devices or regular files (e.g.
* extended partitions). Note that size of the UBI char devices
* is 1 byte */
DBG(LOWPROBE, ul_debug("*** ignore (size <= 1024)"));
return BLKID_PROBE_NONE;
}
DBG(LOWPROBE, ul_debug("--> starting probing loop [SUBLKS idx=%d]",
chn->idx));