[Intel-gfx] [PATCH] drm/i915: Protect WC stash allocation against direct reclaim

[Matthew Auld]

On 21 January 2018 at 17:31, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> As we attempt to allocate pages for use in a new WC stash, direct
> reclaim may run underneath us and fill up the WC stash. We have to be
> careful then not to overflow the pvec.
>
> Fixes: 66df1014efba ("drm/i915: Keep a small stash of preallocated WC pages")
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103109
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Matthew Auld <matthew.auld at intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

Yikes.
Reviewed-by: Matthew Auld <matthew.auld at intel.com>