tune2fs: do not enable project feature or quota if inode size is 128 bytes

Don't allow the user to enable the project feature (or project quota)
if the inode size is 128 bytes.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index 8543567..99c17cc 100644 (file)
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -1310,6 +1310,11 @@ mmp_error:
 
        if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
                       EXT4_FEATURE_RO_COMPAT_PROJECT)) {
+               if (fs->super->s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
+                       fprintf(stderr, _("Cannot enable project feature; "
+                                         "inode size too small.\n"));
+                       exit(1);
+               }
                Q_flag = 1;
                quota_enable[PRJQUOTA] = QOPT_ENABLE;
        }
@@ -1497,6 +1502,13 @@ static void handle_quota_options(ext2_filsys fs)
                /* Nothing to do. */
                return;
 
+       if (quota_enable[PRJQUOTA] == QOPT_ENABLE &&
+           fs->super->s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
+               fprintf(stderr, _("Cannot enable project quota; "
+                                 "inode size too small.\n"));
+               exit(1);
+       }
+
        for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
                if (quota_enable[qtype] == QOPT_ENABLE)
                        qtype_bits |= 1 << qtype;