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由 Chris Wilson 提交于
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: 66df1014 ("drm/i915: Keep a small stash of preallocated WC pages") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103109Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: NMatthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180121173143.17090-1-chris@chris-wilson.co.uk
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