Btrfs: clear uptodate flags of pages in sys_array eb
We set uptodate flag to pages in the temporary sys_array eb, but do not clear the flag after free eb. As the special btree inode may still hold a reference on those pages, the uptodate flag can remain alive in them. If btrfs_super_chunk_root has been intentionally changed to the offset of this sys_array eb, reading chunk_root will read content of sys_array and it will skip our beautiful checks in btree_readpage_end_io_hook() because of "pages of eb are uptodate => eb is uptodate" This adds the 'clear uptodate' part to force it to read from disk. Reviewed-by:Josef Bacik <jbacik@fb.com> Signed-off-by:
Liu Bo <bo.li.liu@oracle.com> Signed-off-by:
David Sterba <dsterba@suse.com>
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