summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-09-29 19:28:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-09-29 19:28:26 -0700
commit0ecdb12a7ae983a012f662373fb3ccc22b920ed8 (patch)
treee067c1b262b5c07fdbbee9296651d7182ddc2ebe /drivers
parent5fe858b5b76be3cb1b1cf3ea40b7ca6706f8329c (diff)
parenta681887f7b0f8b7698e4b22f1191015424fa96e4 (diff)
downloadlwn-0ecdb12a7ae983a012f662373fb3ccc22b920ed8.tar.gz
lwn-0ecdb12a7ae983a012f662373fb3ccc22b920ed8.zip
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] cio: fix cio_tpi ignoring adapter interrupts [S390] gmap: always up mmap_sem properly [S390] Do not clobber personality flags on exec
Diffstat (limited to 'drivers')
-rw-r--r--drivers/s390/cio/cio.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index cbde448f9947..eb3140ee821e 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -654,8 +654,8 @@ static struct io_subchannel_private console_priv;
static int console_subchannel_in_use;
/*
- * Use tpi to get a pending interrupt, call the interrupt handler and
- * return a pointer to the subchannel structure.
+ * Use cio_tpi to get a pending interrupt and call the interrupt handler.
+ * Return non-zero if an interrupt was processed, zero otherwise.
*/
static int cio_tpi(void)
{
@@ -667,6 +667,10 @@ static int cio_tpi(void)
tpi_info = (struct tpi_info *)&S390_lowcore.subchannel_id;
if (tpi(NULL) != 1)
return 0;
+ if (tpi_info->adapter_IO) {
+ do_adapter_IO(tpi_info->isc);
+ return 1;
+ }
irb = (struct irb *)&S390_lowcore.irb;
/* Store interrupt response block to lowcore. */
if (tsch(tpi_info->schid, irb) != 0)