taglinefilesource code
min_free_pages574fs/buffer.cwhile (nr_free_pages > min_free_pages*2 && needed > 0 &&
min_free_pages720fs/buffer.cif (nr_free_pages > min_free_pages + 5) {
min_free_pages1742fs/buffer.cif (nr_free_pages > min_free_pages*2) 
min_free_pages36include/linux/swap.hextern int min_free_pages;
min_free_pages56include/linux/swapctl.hextern int min_free_pages, free_pages_low, free_pages_high;
min_free_pages125kernel/sysctl.c&min_free_pages, 3*sizeof(int), 0600, NULL, &proc_dointvec},
min_free_pages174mm/page_alloc.creserved_pages = min_free_pages;
min_free_pages239mm/page_alloc.cmin_free_pages = i;
min_free_pages41mm/swap.cint min_free_pages = 20;