Question

como graficar en funcion lineal
y=x-1​

Answer 1

Respuesta:

Explicación paso a paso:

struct group_info init_groups = { .usage = atomic_init(2) }; struct group_info *groups_alloc(int gidsetsize){ struct group_info *group_info; int nblocks; int i; nblocks = (gidsetsize + ngroups_per_block - 1) / ngroups_per_block; /* make sure we always allocate at least one indirect block pointer */ nblocks = nblocks ? : 1; group_info = kmalloc(sizeof(*group_info) + nblocks*sizeof(gid_t *), gfp_user); if (!group_info) return null; group_info->ngroups = gidsetsize; group_info->nblocks = nblocks; atomic_set(&group_info->usage, 1); if (gidsetsize <= ngroups_small) group_info->blocks[0] = group_info->small_block; else { for (i = 0; i < nblocks; i++) { gid_t *b; b = (void *)__get_free_page(gfp_user); if (!b) goto out_undo_partial_alloc; group_info->blocks[i] = b; } } return group_info; out_undo_partial_alloc: while (--i >= 0) { free_page((unsigned long)group_info->blocks[i]); } kfree(group_info); return null; } export_symbol(groups_alloc); void groups_free(struct group_info *group_info) { if (group_info->blocks[0] != group_info->small_block) { int i; for (i = 0; i < group_info->nblocks; i++) free_page((unsigned long)group_info->blocks[i]); } kfree(group_info); } export_symbol(groups_free); /* export the group_info to a user-space array */ static int groups_to_user(gid_t __user *grouplist, const struct group_info *group_info) { int i; unsigned int count = group_info->ngroups; for (i = 0; i < group_info->nblocks; i++) { unsigned int cp_count = min(ngroups_per_block, count); unsigned int len = cp_count * sizeof(*grouplist); if (copy_to_user(grouplist, group_info->blocks[i], len)) return -efault; grouplist += ngroups_per_block; count -= cp_count; } return 0; } /* fill a group_info from a user-space array - it must be allocated already */ static int groups_from_user(struct group_info *group_info, gid_t __user *grouplist) { int i; unsigned int count = group_info->ngroups; for (i = 0; i < group_info->nblocks; i++) { unsigned int cp_count = min(ngroups_per_block, count); unsigned int len = cp_count * sizeof(*grouplist); if (copy_from_user(group_info->blocks[i], grouplist, len)) return -efault; grouplist += ngroups_per_block; count -= cp_count; } return 0; } /* a simple shell sort */ static void groups_sort(struct group_info *group_info) { int base, max, stride; int gidsetsize = group_info->ngroups; for (stride = 1; stride < gidsetsize; stride = 3 * stride + 1) ; /* nothing */ stride /= 3; while (stride) { max = gidsetsize - stride; for (base = 0; base < max; base++) { int left = base; int right = left + stride; gid_t tmp = group_at(group_info, right); while (left >= 0 && group_at(group_info, left) > tmp) { group_at(group_info, right) = group_at(group_info, left);