PRSHIFT 113 fs/xfs/linux-2.6/xfs_buf.c #define PRSHIFT (PAGE_CACHE_SHIFT - 5) /* (32 == 1<<5) */ PRSHIFT 115 fs/xfs/linux-2.6/xfs_buf.c #define PRSHIFT (PAGE_CACHE_SHIFT - 6) /* (64 == 1<<6) */