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Increment format version

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Increment format version to 2 and also prevent downgrade

Signed-off-by: Bryant G. Duffy-Ly <bduffyly@versity.com>
This commit is contained in:
Bryant G. Duffy-Ly
2022-05-13 10:12:17 -07:00
committed by Zach Brown
parent 2fbc135a48
commit e7b22e19d2
2 changed files with 11 additions and 1 deletions
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kmod/src/format.h
+1 -1
View File
@@ -8,7 +8,7 @@
*/
#define SCOUTFS_FORMAT_VERSION_MIN 1
#define SCOUTFS_FORMAT_VERSION_MIN_STR __stringify(SCOUTFS_FORMAT_VERSION_MIN)
#define SCOUTFS_FORMAT_VERSION_MAX 1
#define SCOUTFS_FORMAT_VERSION_MAX 2
#define SCOUTFS_FORMAT_VERSION_MAX_STR __stringify(SCOUTFS_FORMAT_VERSION_MAX)
/* statfs(2) f_type */
utils/src/change_format_version.c
+10
View File
@@ -119,6 +119,16 @@ static int do_change_fmt_vers(struct change_fmt_vers_args *args)
goto out;
}
if (le64_to_cpu(meta_super->fmt_vers) > args->fmt_vers ||
le64_to_cpu(data_super->fmt_vers) > args->fmt_vers) {
ret = -EPERM;
printf("Downgrade of Meta Format Version: %llu and Data Format Version: %llu to Format Version: %llu is not allowed\n",
le64_to_cpu(meta_super->fmt_vers),
le64_to_cpu(data_super->fmt_vers),
args->fmt_vers);
goto out;
}
if (le64_to_cpu(meta_super->fmt_vers) != args->fmt_vers) {
meta_super->fmt_vers = cpu_to_le64(args->fmt_vers);