Hi!
I am learning linkux kernel internals and facing the following problem:
1. I use __bread to read a fixed place block on a block drive.
2. I use submit_bio to read/write data on the same drive. The order the
data is written may be arbitrary and, in general, it almost never occur
at the same block address.
3. Then I need to (re)write the block from point 1. but forcing all data
from point 2. being written first and all subsequent data written after
it using submit_bio must occur after the block is on disk.
__bread BLOCK; several submit_bio; WRITE BLOCK (barrier here); several
submit_bio
How do I do this, I mean WRITE BLOCK?
Thanks for any help.
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