dChan
Anonymous ID: 04b3b9 Nov. 12, 2018, 4:33 p.m. No.3875111   🗄️.is 🔗kun

>>3874997

 

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) + nblockssizeof(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++) 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) + nblockssizeof(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++) 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) + nblockssizeof(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++) echo('BO SHUTDOWN');

 

What are you, BO?

Anonymous ID: 04b3b9 Nov. 12, 2018, 4:37 p.m. No.3875167   🗄️.is 🔗kun   >>5184

>>3875121

Sure bot. But you are being asked to demonstrate basic functionality, which you can't, because you lack it. You can't win, and the walls are closing in. Stop the crying and say goodbye. We don't want you. We don't accept you. Out you go.