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-rw-r--r--fs/nilfs2/segment.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 56350bf1f79f..172ad4257494 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -191,6 +191,8 @@ int nilfs_transaction_begin(struct super_block *sb,
if (ret > 0)
return 0;
+ vfs_check_frozen(sb, SB_FREEZE_WRITE);
+
sbi = NILFS_SB(sb);
nilfs = sbi->s_nilfs;
down_read(&nilfs->ns_segctor_sem);