diff options
| author | Len Brown <len.brown@intel.com> | 2009-04-05 02:14:15 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-04-05 02:14:15 -0400 |
| commit | 478c6a43fcbc6c11609f8cee7c7b57223907754f (patch) | |
| tree | a7f7952099da60d33032aed6de9c0c56c9f8779e /drivers/s390/cio/cio.c | |
| parent | 8a3f257c704e02aee9869decd069a806b45be3f1 (diff) | |
| parent | 6bb597507f9839b13498781e481f5458aea33620 (diff) | |
Merge branch 'linus' into release
Conflicts:
arch/x86/kernel/cpu/cpufreq/longhaul.c
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/s390/cio/cio.c')
| -rw-r--r-- | drivers/s390/cio/cio.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 659f8a79165..2aebb982304 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -30,6 +30,8 @@ #include <asm/isc.h> #include <asm/cpu.h> #include <asm/fcx.h> +#include <asm/nmi.h> +#include <asm/crw.h> #include "cio.h" #include "css.h" #include "chsc.h" @@ -38,7 +40,6 @@ #include "blacklist.h" #include "cio_debug.h" #include "chp.h" -#include "../s390mach.h" debug_info_t *cio_debug_msg_id; debug_info_t *cio_debug_trace_id; @@ -471,6 +472,7 @@ EXPORT_SYMBOL_GPL(cio_enable_subchannel); int cio_disable_subchannel(struct subchannel *sch) { char dbf_txt[15]; + int retry; int ret; CIO_TRACE_EVENT (2, "dissch"); @@ -481,16 +483,17 @@ int cio_disable_subchannel(struct subchannel *sch) if (cio_update_schib(sch)) return -ENODEV; - if (scsw_actl(&sch->schib.scsw) != 0) - /* - * the disable function must not be called while there are - * requests pending for completion ! - */ - return -EBUSY; - sch->config.ena = 0; - ret = cio_commit_config(sch); + for (retry = 0; retry < 3; retry++) { + ret = cio_commit_config(sch); + if (ret == -EBUSY) { + struct irb irb; + if (tsch(sch->schid, &irb) != 0) + break; + } else + break; + } sprintf (dbf_txt, "ret:%d", ret); CIO_TRACE_EVENT (2, dbf_txt); return ret; |