[PATCH] mbcache: add gfp_mask parameter to free() callback,
Patch from Andreas Gruenbacher <agruen@suse.de> Add a gfp_mask parameter to the free() callback so that the callback can safely do I/O, etc. The free callback can now also fail. This will be needed by reiserfs. The order of entries on the cache entry lru is reversed so that list_for_each_safe() can be used. Several helper functions that don't make the code any better are removed. Finally, a couple of cosmetic things.
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