[PATCH] drm: track dev_mapping in more robust and flexible way

2012-05-15 Thread Ilija Hadzic
Setting dev_mapping (pointer to the address_space structure used for memory mappings) to the address_space of the first opener's inode and then failing if other openers come in through a different inode has a few restrictions that are eliminated by this patch. If we already have valid dev_mapping

[PATCH] drm: track dev_mapping in more robust and flexible way

2012-05-15 Thread Ilija Hadzic
Setting dev_mapping (pointer to the address_space structure used for memory mappings) to the address_space of the first opener's inode and then failing if other openers come in through a different inode has a few restrictions that are eliminated by this patch. If we already have valid dev_mapping