diff options
| author | Dave Airlie <airlied@redhat.com> | 2009-09-23 16:56:27 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@linux.ie> | 2009-09-25 13:08:18 +1000 |
| commit | 513bcb4655e68706594e45dfa1d4b181500110ba (patch) | |
| tree | ed457db4cfb202015866a131ad4e742503728fad /fs/eventfd.c | |
| parent | 35e4b7af21d77933abda3d41d1672589eb6c960c (diff) | |
| download | op-kernel-dev-513bcb4655e68706594e45dfa1d4b181500110ba.zip op-kernel-dev-513bcb4655e68706594e45dfa1d4b181500110ba.tar.gz | |
drm/radeon/kms: don't require up to 64k allocations. (v2)
This avoids needing to do a kmalloc > PAGE_SIZE for the main
indirect buffer chunk, it adds an accessor for all reads from
the chunk and caches a single page at a time for subsequent
reads.
changes since v1:
Use a two page pool which should be the most common case
a single packet spanning > PAGE_SIZE will be hit, but I'm
having trouble seeing anywhere we currently generate anything like that.
hopefully proper short page copying at end
added parser_error flag to set deep errors instead of having to test
every ib value fetch.
fixed bug in patch that went to list.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'fs/eventfd.c')
0 files changed, 0 insertions, 0 deletions
