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-rw-r--r--fs/nilfs2/super.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 7901d8cbb9b1..7262e8427c20 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -316,6 +316,8 @@ static void nilfs_put_super(struct super_block *sb)
struct nilfs_sb_info *sbi = NILFS_SB(sb);
struct the_nilfs *nilfs = sbi->s_nilfs;
+ lock_kernel();
+
if (sb->s_dirt)
nilfs_write_super(sb);
@@ -333,6 +335,8 @@ static void nilfs_put_super(struct super_block *sb)
sbi->s_super = NULL;
sb->s_fs_info = NULL;
kfree(sbi);
+
+ unlock_kernel();
}
/**
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