Functionalities of some functions

[ashutosh dubey]

Hi all,
Could anybody tell me what are the functionalities of following functions in
ext3 code?The functions are defined in fs/ext3/inode.c

ext3_get_blocks_handle()
ext3_get_block()
ext3_getblk()
ext3_bread()
walk_page_buffers()

thanx in advance.
-- 
Ashutosh Dubey
CSE-IDD 5th year
IIT Roorkee
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