ext4: remove redundant set_buffer_mapped() in ext4_da_get_block_prep()
ext4: remove redundant set_buffer_mapped() in ext4_da_get_block_prep()

The map_bh() call will have already set the buffer_head to mapped.

Signed-off-by: Feng Tang <7685a6702c33a8c01ef22193062cb8069601cb3e@intel.com>
Signed-off-by: "Theodore Ts'o" <4ed386e0495d3e109932df055831d9ec2f824927@mit.edu>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs