Disk blocks for long periods

[David Woodhouse]

joakim.tjernlund at lumentis.se said:
>  Can the JFFS2 layer also use spin_lock() instead of spin_lock_bh()?
> Shold we try not to disable bottom-halves or does it not matter?

Well, the MTD API documentation (in my head) says that the erase completion 
callback may be called in bottom-half context (i.e. from a timer), which is 
why JFFS2 uses spin_lock_bh(). 

I suppose we could change that.

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dwmw2