diff options
| -rw-r--r-- | module/zfs/zfs_ioctl.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/module/zfs/zfs_ioctl.c b/module/zfs/zfs_ioctl.c index be782ba80..b12205e68 100644 --- a/module/zfs/zfs_ioctl.c +++ b/module/zfs/zfs_ioctl.c @@ -3365,17 +3365,17 @@ zfs_unmount_snap(const char *snapname) if ((ptr = strchr(snapname, '@')) == NULL) return; - dsname = strdup(snapname); - dsname[ptr - snapname] = '\0'; - snapname = strdup(ptr + 1); - fullname = kmem_asprintf("%s@%s", dsname, snapname); + dsname = kmem_alloc(ptr - snapname + 1, KM_SLEEP); + strlcpy(dsname, snapname, ptr - snapname + 1); + fullname = strdup(snapname); + if (zfs_sb_hold(dsname, FTAG, &zsb, B_FALSE) == 0) { ASSERT(!dsl_pool_config_held(dmu_objset_pool(zsb->z_os))); (void) zfsctl_unmount_snapshot(zsb, fullname, MNT_FORCE); zfs_sb_rele(zsb, FTAG); } - strfree(dsname); + kmem_free(dsname, ptr - snapname + 1); strfree(fullname); return; |