9921f743ac64184a3a6f
parent 6e8267f532a17165ab551ac5fdafcba5333dcca5
author Andi Kleen <ak@linux.intel.com> 1312259887 -0700
committer root <root@serles.lst.de> 1319806737 +0200

direct-io: separate map_bh from dio

Only a single b_private field in the map_bh buffer head is needed after
the submission path. Move map_bh separately to avoid storing
this information in the long term slab.

This avoids the weird 104 byte hole in struct dio_submit which also needed
to be memseted early.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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