What I want to do is to make make_request() return if the buffer_head
passed to it is NOT uptodate and have a piece of code inside ll_rw_block()
which checks for the return without being satisfied from the cache and
blocks for sometime before calling make_request() again but this time to
get the data from the disk instead. To do this, is it legal if i use the
same buffer_head that i had when I tried the first time...Are there any
issues that i have to be careful about like the buffer_head being given to
another process ???
(Assume that i have extended the buffer_head to include information that
would force make_request() to let it go through the second time to get
data from the disk without simply returning as in the first instance).
TIA
badri
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