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authorCornelia Huck <cornelia.huck@de.ibm.com>2006-12-08 15:54:26 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2006-12-08 15:54:26 +0100
commit2ec2298412e1ab4674b3780005058d4f0b8bd858 (patch)
tree7d48542e666636de17ac18e50ed33b4639be43fb /drivers/s390/cio/cio.h
parent7674da77cb2d27ae6559c55151da171ceb02beb4 (diff)
downloadlinux-2ec2298412e1ab4674b3780005058d4f0b8bd858.tar.bz2
[S390] subchannel lock conversion.
Convert the subchannel lock to a pointer to a lock. Needed for the dynamic subchannel mapping patch. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/cio.h')
-rw-r--r--drivers/s390/cio/cio.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index 4541c1af4b66..7e7369b21a93 100644
--- a/drivers/s390/cio/cio.h
+++ b/drivers/s390/cio/cio.h
@@ -87,7 +87,7 @@ struct orb {
/* subchannel data structure used by I/O subroutines */
struct subchannel {
struct subchannel_id schid;
- spinlock_t lock; /* subchannel lock */
+ spinlock_t *lock; /* subchannel lock */
struct mutex reg_mutex;
enum {
SUBCHANNEL_TYPE_IO = 0,
@@ -137,9 +137,11 @@ extern struct subchannel *cio_probe_console(void);
extern void cio_release_console(void);
extern int cio_is_console(struct subchannel_id);
extern struct subchannel *cio_get_console_subchannel(void);
+extern spinlock_t * cio_get_console_lock(void);
#else
#define cio_is_console(schid) 0
#define cio_get_console_subchannel() NULL
+#define cio_get_console_lock() NULL;
#endif
extern int cio_show_msg;