The patch titled
MBCS: convert algolock to mutex
has been added to the -mm tree. Its filename is
mbcs-convert-algolock-to-mutex.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: MBCS: convert algolock to mutex
From: Matthias Kaehlcke <matthias.kaehlcke@xxxxxxxxx>
MBCS: Convert the semaphore algolock to the mutex API
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/mbcs.c | 7 ++++---
drivers/char/mbcs.h | 2 +-
2 files changed, 5 insertions(+), 4 deletions(-)
diff -puN drivers/char/mbcs.c~mbcs-convert-algolock-to-mutex drivers/char/mbcs.c
--- a/drivers/char/mbcs.c~mbcs-convert-algolock-to-mutex
+++ a/drivers/char/mbcs.c
@@ -23,6 +23,7 @@
#include <linux/device.h>
#include <linux/mm.h>
#include <linux/uio.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@@ -281,7 +282,7 @@ static inline int mbcs_algo_start(struct
void *mmr_base = soft->mmr_base;
union cm_control cm_control;
- if (down_interruptible(&soft->algolock))
+ if (mutex_lock_interruptible(&soft->algolock))
return -ERESTARTSYS;
atomic_set(&soft->algo_done, 0);
@@ -298,7 +299,7 @@ static inline int mbcs_algo_start(struct
cm_control.alg_go = 1;
MBCS_MMR_SET(mmr_base, MBCS_CM_CONTROL, cm_control.cm_control_reg);
- up(&soft->algolock);
+ mutex_unlock(&soft->algolock);
return 0;
}
@@ -764,7 +765,7 @@ static int mbcs_probe(struct cx_dev *dev
init_MUTEX(&soft->dmawritelock);
init_MUTEX(&soft->dmareadlock);
- init_MUTEX(&soft->algolock);
+ mutex_init(&soft->algolock);
mbcs_getdma_init(&soft->getdma);
mbcs_putdma_init(&soft->putdma);
diff -puN drivers/char/mbcs.h~mbcs-convert-algolock-to-mutex drivers/char/mbcs.h
--- a/drivers/char/mbcs.h~mbcs-convert-algolock-to-mutex
+++ a/drivers/char/mbcs.h
@@ -539,7 +539,7 @@ struct mbcs_soft {
atomic_t algo_done;
struct semaphore dmawritelock;
struct semaphore dmareadlock;
- struct semaphore algolock;
+ struct mutex algolock;
};
static int mbcs_open(struct inode *ip, struct file *fp);
_
Patches currently in -mm which might be from matthias.kaehlcke@xxxxxxxxx are
generic-ac97-mixer-modem-oss-use-list_for_each_entry.patch
mbcs-convert-algolock-to-mutex.patch
mbcs-convert-dmawritelock-to-mutex.patch
mbcs-convert-dmareadlock-to-mutex.patch
-
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