[lvm-devel] main - lvcreate: fix crash for unspecified LV name for writecache
Zdenek Kabelac
zkabelac at sourceware.org
Wed Jan 26 14:10:30 UTC 2022
Gitweb: https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=a06ccdf44bd385863792baed887303c714da9685
Commit: a06ccdf44bd385863792baed887303c714da9685
Parent: c6639056e0bb2fc5f072b2c0d6bb629ad17eee6e
Author: Zdenek Kabelac <zkabelac at redhat.com>
AuthorDate: Thu Jan 20 16:01:17 2022 +0100
Committer: Zdenek Kabelac <zkabelac at redhat.com>
CommitterDate: Wed Jan 26 15:09:58 2022 +0100
lvcreate: fix crash for unspecified LV name for writecache
Fix aplication crash when creating writecached LV with 'automatic' name.
---
tools/lvcreate.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/tools/lvcreate.c b/tools/lvcreate.c
index 79af42685..0115b3c32 100644
--- a/tools/lvcreate.c
+++ b/tools/lvcreate.c
@@ -1691,6 +1691,7 @@ static int _lvcreate_single(struct cmd_context *cmd, const char *vg_name,
struct lvcreate_params *lp = pp->lp;
struct lvcreate_cmdline_params *lcp = pp->lcp;
struct logical_volume *spare = vg->pool_metadata_spare_lv;
+ struct logical_volume *lv;
int ret = ECMD_FAILED;
if (!_read_activation_params(cmd, vg, lp))
@@ -1759,9 +1760,12 @@ static int _lvcreate_single(struct cmd_context *cmd, const char *vg_name,
lp->needs_lockd_init = 1;
}
- if (!lv_create_single(vg, lp))
+ if (!(lv = lv_create_single(vg, lp)))
goto_out;
+ if (!lp->lv_name)
+ lp->lv_name = lv->name; /* Get created LV name when it was not specified */
+
ret = ECMD_PROCESSED;
out:
if (ret != ECMD_PROCESSED && !spare && vg->pool_metadata_spare_lv)
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