mm: add a reminder comment for __GFP_BITS_SHIFT
Cc: Glauber Costa <glommer@parallels.com> Cc: Mel Gorman <mgorman@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -34,6 +34,7 @@ struct vm_area_struct;
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#define ___GFP_NO_KSWAPD 0x400000u
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#define ___GFP_OTHER_NODE 0x800000u
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#define ___GFP_WRITE 0x1000000u
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/* If the above are modified, __GFP_BITS_SHIFT may need updating */
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/*
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* GFP bitmasks..
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