i915: convert shmem_sg_free_table() to use a folio_batch

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Remove a few hidden compound_head() calls by converting the returned page
to a folio once and using the folio APIs.  We also only increment the
refcount on the folio once instead of once for each page.  Ideally, we
would have a for_each_sgt_folio macro, but until then this will do.

Link: https://lkml.kernel.org/r/20230621164557.3510324-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Matthew Wilcox (Oracle) 2023-06-21 17:45:48 +01:00 • committed by Andrew Morton

parent bdadc6d831

commit 0b62af28f2

1 changed files with 31 additions and 24 deletions

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drivers/gpu/drm/i915/gem/i915_gem_shmem.c

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