summaryrefslogtreecommitdiffstats
path: root/drivers/mmc
diff options
context:
space:
mode:
authorDavid Herrmann <dh.herrmann@gmail.com>2014-01-03 14:24:19 +0100
committerDavid Herrmann <dh.herrmann@gmail.com>2014-03-16 12:23:33 +0100
commit6796cb16c088905bf3af40548fda68c09e6f6ee5 (patch)
treed40162f17dad7b54ac63feaf62b7c84493556f5a /drivers/mmc
parentdrm: add pseudo filesystem for shared inodes (diff)
downloadlinux-6796cb16c088905bf3af40548fda68c09e6f6ee5.tar.xz
linux-6796cb16c088905bf3af40548fda68c09e6f6ee5.zip
drm: use anon-inode instead of relying on cdevs
DRM drivers share a common address_space across all character-devices of a single DRM device. This allows simple buffer eviction and mapping-control. However, DRM core currently waits for the first ->open() on any char-dev to mark the underlying inode as backing inode of the device. This delayed initialization causes ugly conditions all over the place: if (dev->dev_mapping) do_sth(); To avoid delayed initialization and to stop reusing the inode of the char-dev, we allocate an anonymous inode for each DRM device and reset filp->f_mapping to it on ->open(). Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Diffstat (limited to 'drivers/mmc')
0 files changed, 0 insertions, 0 deletions