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[S390] cio: fix subchannel channel-path data usage

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Ensure that channel-path related subchannel data is only retrieved and
used when it is valid and that it is updated when it may have changed.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Peter Oberparleiter
2007-04-27 16:01:35 +02:00
committed by Martin Schwidefsky
parent 83b3370c79
commit 7ad6a24970
7 changed files with 185 additions and 223 deletions
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drivers/s390/cio/css.h
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@ -148,6 +148,7 @@ extern int css_init_done;
extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *);
extern void css_process_crw(int, int);
extern void css_reiterate_subchannels(void);
void css_update_ssd_info(struct subchannel *sch);
#define __MAX_SUBCHANNEL 65535
#define __MAX_SSID 3