mm: Convert collapse_shmem to XArray

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I found another victim of the radix tree being hard to use.  Because
there was no call to radix_tree_preload(), khugepaged was allocating
radix_tree_nodes using GFP_ATOMIC.

I also converted a local_irq_save()/restore() pair to
disable()/enable().

Signed-off-by: Matthew Wilcox <willy@infradead.org>

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Matthew Wilcox 2017-12-04 14:56:08 -05:00

parent aa5dc07f70

commit 77da9389b9

1 changed files with 66 additions and 93 deletions

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159

mm/khugepaged.c

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