diff options
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-12-07 12:52:20 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2009-12-07 12:51:39 +0100 |
| commit | 5cbb5f579e5b6f2e686880ffafa64e49323320c1 (patch) | |
| tree | e3bea904f94a414dfedce42793c0f78acb008eb3 | |
| parent | feb5c5a450a5e56f3be09a18b541996c86bd94bc (diff) | |
[S390] 3270: remove BKL
Replace BLK use in fs3270 with mutex.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | drivers/s390/char/fs3270.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index 097d3846a828..d449063c30fe 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -38,6 +38,8 @@ struct fs3270 { size_t rdbuf_size; /* size of data returned by RDBUF */ }; +static DEFINE_MUTEX(fs3270_mutex); + static void fs3270_wake_up(struct raw3270_request *rq, void *data) { @@ -328,7 +330,7 @@ fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) if (!fp) return -ENODEV; rc = 0; - lock_kernel(); + mutex_lock(&fs3270_mutex); switch (cmd) { case TUBICMD: fp->read_command = arg; @@ -354,7 +356,7 @@ fs3270_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) rc = -EFAULT; break; } - unlock_kernel(); + mutex_unlock(&fs3270_mutex); return rc; } @@ -437,7 +439,7 @@ fs3270_open(struct inode *inode, struct file *filp) minor = tty->index + RAW3270_FIRSTMINOR; tty_kref_put(tty); } - lock_kernel(); + mutex_lock(&fs3270_mutex); /* Check if some other program is already using fullscreen mode. */ fp = (struct fs3270 *) raw3270_find_view(&fs3270_fn, minor); if (!IS_ERR(fp)) { @@ -478,7 +480,7 @@ fs3270_open(struct inode *inode, struct file *filp) } filp->private_data = fp; out: - unlock_kernel(); + mutex_unlock(&fs3270_mutex); return rc; } |