On Sat, 4 Mar 2000, Tigran Aivazian wrote:
> d) now comes the interesting bit. Even after all the buffers have been
>invalidated, those threads still continue happily reading and claiming
>that the data is correct (i.e. as in the old disk).
What do you mean with "claim". You never check the contents of the
bh->b_data that you get from bread.
Anyway you should always call the bd_op->open/release of the blockdevice
before/after calling bread/brelse. All the media_change stuff is done at
blockdevice open time. If you don't open it, the media_change won't be
detected.
Andrea
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