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-rw-r--r--fs/ext4/super.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index de5398c07161..5dc65b7583cb 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3609,7 +3609,8 @@ int ext4_calculate_overhead(struct super_block *sb)
*/
if (sbi->s_journal && !sbi->journal_bdev)
overhead += EXT4_NUM_B2C(sbi, sbi->s_journal->j_maxlen);
- else if (ext4_has_feature_journal(sb) && !sbi->s_journal) {
+ else if (ext4_has_feature_journal(sb) && !sbi->s_journal && j_inum) {
+ /* j_inum for internal journal is non-zero */
j_inode = ext4_get_journal_inode(sb, j_inum);
if (j_inode) {
j_blocks = j_inode->i_size >> sb->s_blocksize_bits;