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Fix efi_get_info() zvol detection 

Partition detection for zvol devices was not working correctly
resulting inconsistent partitioning behavior when layering pools
on top of zvols.  This isn't a supported configuration but we'd
still like it to work properly.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7624
This commit is contained in:
Brian Behlendorf 2018-06-13 10:20:58 -07:00 committed by GitHub
parent ab24877bd3
commit 232dd8b956
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1 changed files with 3 additions and 2 deletions
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5
lib/libefi/rdwr_efi.c
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@ -278,8 +278,9 @@ efi_get_info(int fd, struct dk_cinfo *dki_info)
} else if ((strncmp(dev_path, "/dev/zd", 7) == 0)) {
strcpy(dki_info->dki_cname, "zd");
dki_info->dki_ctype = DKC_MD;
rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu",
dki_info->dki_dname,
strcpy(dki_info->dki_dname, "zd");
rval = sscanf(dev_path, "/dev/zd%[0-9]p%hu",
dki_info->dki_dname + 2,
&dki_info->dki_partition);
} else if ((strncmp(dev_path, "/dev/dm-", 8) == 0)) {
strcpy(dki_info->dki_cname, "pseudo");