[PATCH -v4 RESEND 1/9] mm, swap: Make swap cluster size same of THP size on x86_64

From: Huang Ying In this patch, the size of the swap cluster is changed to that of the THP (Transparent Huge Page) on x86_64 architecture (512). This is for the THP swap support on x86_64. Where one swap cluster will be used to hold the contents of each THP swapped out.

[PATCH -v4 RESEND 1/9] mm, swap: Make swap cluster size same of THP size on x86_64

From: Huang Ying In this patch, the size of the swap cluster is changed to that of the THP (Transparent Huge Page) on x86_64 architecture (512). This is for the THP swap support on x86_64. Where one swap cluster will be used to hold the contents of each THP swapped out. And some information