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Diffstat (limited to 'drivers/s390/s390mach.c')
-rw-r--r--drivers/s390/s390mach.c25
1 files changed, 7 insertions, 18 deletions
diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c
index 806bb1a..644a06e 100644
--- a/drivers/s390/s390mach.c
+++ b/drivers/s390/s390mach.c
@@ -21,6 +21,7 @@
#include "cio/cio.h"
#include "cio/chsc.h"
#include "cio/css.h"
+#include "cio/chp.h"
#include "s390mach.h"
static struct semaphore m_sem;
@@ -44,14 +45,13 @@ static int
s390_collect_crw_info(void *param)
{
struct crw crw[2];
- int ccode, ret, slow;
+ int ccode;
struct semaphore *sem;
unsigned int chain;
sem = (struct semaphore *)param;
repeat:
down_interruptible(sem);
- slow = 0;
chain = 0;
while (1) {
if (unlikely(chain > 1)) {
@@ -84,9 +84,8 @@ repeat:
/* Check for overflows. */
if (crw[chain].oflw) {
pr_debug("%s: crw overflow detected!\n", __FUNCTION__);
- css_reiterate_subchannels();
+ css_schedule_eval_all();
chain = 0;
- slow = 1;
continue;
}
switch (crw[chain].rsc) {
@@ -94,10 +93,7 @@ repeat:
if (crw[0].chn && !chain)
break;
pr_debug("source is subchannel %04X\n", crw[0].rsid);
- ret = css_process_crw (crw[0].rsid,
- chain ? crw[1].rsid : 0);
- if (ret == -EAGAIN)
- slow = 1;
+ css_process_crw(crw[0].rsid, chain ? crw[1].rsid : 0);
break;
case CRW_RSC_MONITOR:
pr_debug("source is monitoring facility\n");
@@ -116,28 +112,23 @@ repeat:
}
switch (crw[0].erc) {
case CRW_ERC_IPARM: /* Path has come. */
- ret = chp_process_crw(crw[0].rsid, 1);
+ chp_process_crw(crw[0].rsid, 1);
break;
case CRW_ERC_PERRI: /* Path has gone. */
case CRW_ERC_PERRN:
- ret = chp_process_crw(crw[0].rsid, 0);
+ chp_process_crw(crw[0].rsid, 0);
break;
default:
pr_debug("Don't know how to handle erc=%x\n",
crw[0].erc);
- ret = 0;
}
- if (ret == -EAGAIN)
- slow = 1;
break;
case CRW_RSC_CONFIG:
pr_debug("source is configuration-alert facility\n");
break;
case CRW_RSC_CSS:
pr_debug("source is channel subsystem\n");
- ret = chsc_process_crw();
- if (ret == -EAGAIN)
- slow = 1;
+ chsc_process_crw();
break;
default:
pr_debug("unknown source\n");
@@ -146,8 +137,6 @@ repeat:
/* chain is always 0 or 1 here. */
chain = crw[chain].chn ? chain + 1 : 0;
}
- if (slow)
- queue_work(slow_path_wq, &slow_path_work);
goto repeat;
return 0;
}
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