s390/mm/extmem.c

88  * Create the 8 bytes, ebcdic VM segment name from
132  * Perform a function on a dcss segment.
164 /* do a diag to get info about a segment.
208 		/* multi-part segment. only one type supported here:  in query_segment_type()
244  * get info about a segment
248  * -ENOENT  : no such segment
249  * -EOPNOTSUPP: multi-part segment cannot be used with linux
251  * 0 .. 6   : type of segment as defined in include/asm-s390/extmem.h
270  * check if segment collides with other segments that are currently loaded
294  * real segment loading function, called from segment_load
295  * Must return either an error code < 0, or the segment type code >= 0
398  * this function loads a DCSS segment
402  * addr         : will be filled with start address of the segment
403  * end          : will be filled with end address of the segment
407  * -ENOENT  : no such segment
408  * -EOPNOTSUPP: multi-part segment cannot be used with linux
409  * -EBUSY   : segment cannot be used (overlaps with dcss or storage)
410  * -ERANGE  : segment cannot be used (exceeds kernel mapping range)
411  * -EPERM   : segment is currently loaded with incompatible permissions
413  * 0 .. 6   : type of segment as defined in include/asm-s390/extmem.h
445  * this function modifies the shared state of a DCSS segment. note that
450  * -EIO     : could not perform load diagnose (segment gone!)
451  * -ENOENT  : no such segment (segment gone!)
452  * -EAGAIN  : segment is in use by other exploiters, try later
453  * -EINVAL  : no segment with the given name is currently loaded - name invalid
454  * -EBUSY   : segment can temporarily not be used (overlaps with dcss)
534  * Decrease the use count of a DCSS segment and remove
566  * save segment content permanently