On 09/26/2018 06:36 PM, Christian König wrote:
Am 26.09.2018 um 18:18 schrieb Thomas Hellstrom:
Instead of generating user-space object handles based on a, possibly
processed, hash of the kernel address of the object, use idr to generate
and lookup those handles. This might improve somewhat on security since
we loose all connections to the object's kernel address. Also idr is
designed to do just this.
As a todo-item, since user-space handles are now generated in sequence,
we can probably use a much simpler hash function to hash them.
Cc: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Thomas Hellstrom <thellstrom@xxxxxxxxxx>
Reviewed-by: Sinclair Yeh <syeh@xxxxxxxxxx>
Reviewed-by: Deepak Rawat <drawat@xxxxxxxxxx>
Well NAK. I already proposed completely removing ttm_lock.c and
ttm_object.c because vmwgfx is the only user of it.
Please move that functionality into the driver since it isn't TTM
specific after all.
Christian.
Actually, I thought that was already done in -next, but it wasn't. I
vaguely recall seeing some patches doing that, but I might remember
incorrectly or they were never pushed.
I'll move those files over.
/Thomas
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