linux-ext4 - [QUESTION] Getting block bitmap

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Message-ID: <CAExFE6=Oj27M-6x++VGC6DNhao539CtjiPjmGgfk6LDRRVzufA@mail.gmail.com>
Date:   Mon, 18 Dec 2017 23:13:39 +0530
From:   Sayan Ghosh <sgdgp.2014@...il.com>
To:     linux-ext4@...r.kernel.org
Subject: [QUESTION] Getting block bitmap

Hello,

bh = ext4_read_block_bitmap(sb,block_group);

This function return the buffer head for the block/page with the block bitmap

char *block_bmap = bh->b_data;

Doing this does not give the block bitmap string

What is the process to get the block bitmap in string or array form?

Regards,
Sayan