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mkfs-util: Set sector size environment variables when invoking mkfs.ext4

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Let's inform mkfs.ext4 about the sector size we're using.
This commit is contained in:
Daan De Meyer 2023-08-12 13:28:10 +02:00
parent 579fbe5b78
commit 89dfac6b8f
1 changed files with 16 additions and 1 deletions
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17
src/shared/mkfs-util.c
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@ -329,7 +329,7 @@ int make_filesystem(
char * const *extra_mkfs_args) {
_cleanup_free_ char *mkfs = NULL, *mangled_label = NULL;
_cleanup_strv_free_ char **argv = NULL;
_cleanup_strv_free_ char **argv = NULL, **env = NULL;
_cleanup_(rm_rf_physical_and_freep) char *protofile_tmpdir = NULL;
_cleanup_(unlink_and_freep) char *protofile = NULL;
char vol_id[CONST_MAX(SD_ID128_UUID_STRING_MAX, 8U + 1U)] = {};
@ -432,6 +432,15 @@ int make_filesystem(
if (quiet && strv_extend(&argv, "-q") < 0)
return log_oom();
if (sector_size > 0)
FOREACH_STRING(s, "MKE2FS_DEVICE_SECTSIZE", "MKE2FS_DEVICE_PHYS_SECTSIZE") {
if (strv_extend(&env, s) < 0)
return log_oom();
if (strv_extendf(&env, "%"PRIu64, sector_size) < 0)
return log_oom();
}
} else if (streq(fstype, "btrfs")) {
argv = strv_new(mkfs,
"-L", label,
@ -594,6 +603,12 @@ int make_filesystem(
if (r == 0) {
/* Child */
STRV_FOREACH_PAIR(k, v, env)
if (setenv(*k, *v, /* replace = */ true) < 0) {
log_error_errno(r, "Failed to set %s=%s environment variable: %m", *k, *v);
_exit(EXIT_FAILURE);
}
/* mkfs.btrfs refuses to operate on block devices with mounted partitions, even if operating
* on unformatted free space, so let's trick it and other mkfs tools into thinking no
* partitions are mounted. See https://github.com/kdave/btrfs-progs/issues/640 for more