The patch titled
Kcopyd: use mutex instead of semaphore
has been added to the -mm tree. Its filename is
kcopyd-use-mutex-instead-of-semaphore.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: Kcopyd: use mutex instead of semaphore
From: Matthias Kaehlcke <matthias.kaehlcke@xxxxxxxxx>
Kcopyd uses a semaphore as mutex. Use the mutex API instead of the (binary)
semaphore,
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@xxxxxxxxx>
Cc: Neil Brown <neilb@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/md/kcopyd.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff -puN drivers/md/kcopyd.c~kcopyd-use-mutex-instead-of-semaphore drivers/md/kcopyd.c
--- a/drivers/md/kcopyd.c~kcopyd-use-mutex-instead-of-semaphore
+++ a/drivers/md/kcopyd.c
@@ -198,7 +198,7 @@ struct kcopyd_job {
* These fields are only used if the job has been split
* into more manageable parts.
*/
- struct semaphore lock;
+ struct mutex lock;
atomic_t sub_jobs;
sector_t progress;
};
@@ -459,7 +459,7 @@ static void segment_complete(int read_er
sector_t count = 0;
struct kcopyd_job *job = (struct kcopyd_job *) context;
- down(&job->lock);
+ mutex_lock(&job->lock);
/* update the error */
if (read_err)
@@ -483,7 +483,7 @@ static void segment_complete(int read_er
job->progress += count;
}
}
- up(&job->lock);
+ mutex_unlock(&job->lock);
if (count) {
int i;
@@ -565,7 +565,7 @@ int kcopyd_copy(struct kcopyd_client *kc
dispatch_job(job);
else {
- init_MUTEX(&job->lock);
+ mutex_init(&job->lock);
job->progress = 0;
split_job(job);
}
_
Patches currently in -mm which might be from matthias.kaehlcke@xxxxxxxxx are
origin.patch
include-kern_-constant-in-printk-calls-in-mm-slabc.patch
srmcons-fix-kmallocgfp_kernel-inside-spinlock.patch
power-management-use-mutexes-instead-of-semaphores.patch
sysdev-use-mutex-instead-of-semaphore.patch
git-dvb.patch
use-mutex-instead-of-binary-semaphore-in-idt77252-driver.patch
qla1280-use-dma_64bit_mask-instead-of-0ull.patch
use-mutex-instead-of-binary-semaphore-in-cdu-31a-driver.patch
use-mutex-instead-of-semaphore-in-sbpcd-driver.patch
use-mutex-instead-of-semaphore-in-berkshire-usb-pc-watchdog-driver.patch
use-mutex-instead-of-semaphore-in-rocketport-driver.patch
use-mutex-instead-of-semaphore-in-tpm-driver.patch
use-mutex-instead-of-semaphore-in-hdaps-driver.patch
use-mutex-instead-of-semaphore-for-misc-char-devices.patch
fix-spinlock-usage-in-hysdn_log_close.patch
use-mutex-instead-of-semaphore-in-capi-20-interface.patch
use-mutex-instead-of-semaphore-in-virtual-console-driver.patch
kcopyd-use-mutex-instead-of-semaphore.patch
pvrusb2-use-mutex-instead-of-semaphore.patch
scx200-use-mutex-instead-of-semaphore.patch
-
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