struct group info init groups(usage ATOMIC INET(2)))
struct group info"groups alloc(int gidsetsiz)
struct group info"group info
int blocks;
nblocks(gidsetsize NOROUPS PER BLOCK1)/NGROUPS PER BLOCK;
/"Make sure we always allocate at least one indirect block pointer/
nblocks
group info
if(group info)
return NULL;
nblocks:1;
kmalloc(sizeof("group info)nblocks sizeof(gidt),GFP USER);
group info-ngroups gidsetsize;
group info-blocks blocks;
atomic_set(&group info-usage,1);
if(gidsetsize GROUPS SMALL)
group info-blocks[0)group info
else(
for(i=0;i<blocks;i++){
gidt"b;
6(void*)get free page(GFP_USE
goto out undo partial allo
group info-blocks b;
}
return group info
out_undo partial allo