[PATCH 0/7] Cleanup code that think bio_alloc with __GFP_WAIT can fail

[Nikanth Karthikesan]

bio_alloc will not fail when __GFP_WAIT is specified in the gfp_flags. See 
http://lkml.org/lkml/2009/4/14/198 for the discussion. But this not documented 
and there are places where there is unwanted code to handle bio_alloc failure 
even when __GFP_WAIT is specified. This patch set documents this and cleans up 
various callers who assume bio_alloc can fail even with __GFP_WAIT.

Thanks
Nikanth
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