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-rw-r--r--fs/ext4/inode.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index e0e1cb0..084b821 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -559,16 +559,10 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
return retval;
/*
- * When we call get_blocks without the create flag, the
- * BH_Unwritten flag could have gotten set if the blocks
- * requested were part of a uninitialized extent. We need to
- * clear this flag now that we are committed to convert all or
- * part of the uninitialized extent to be an initialized
- * extent. This is because we need to avoid the combination
- * of BH_Unwritten and BH_Mapped flags being simultaneously
- * set on the buffer_head.
+ * Here we clear m_flags because after allocating an new extent,
+ * it will be set again.
*/
- map->m_flags &= ~EXT4_MAP_UNWRITTEN;
+ map->m_flags &= ~EXT4_MAP_FLAGS;
/*
* New blocks allocate and/or writing to uninitialized extent
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