Lines Matching refs:bottom
52 /** Bottom of heap (current lowest allocated block) */
53 static userptr_t bottom = UNULL;
92 top = bottom = phys_to_user ( r_end );
115 while ( bottom != top ) {
116 copy_from_user ( &extmem, bottom, -sizeof ( extmem ),
120 DBG ( "EXTMEM freeing [%lx,%lx)\n", user_to_phys ( bottom, 0 ),
121 user_to_phys ( bottom, extmem.size ) );
122 bottom = userptr_add ( bottom,
144 if ( bottom == top ) {
156 ptr = bottom = userptr_add ( bottom, -sizeof ( extmem ) );
164 if ( ptr == bottom ) {
178 bottom = new;
196 hide_umalloc ( user_to_phys ( bottom, -sizeof ( extmem ) ),
