From: Alan Cox <alan@linux.intel.com>
To: greg@kroah.com, linux-serial@vger.kernel.org
Subject: [PATCH 09/11] epca: Kill the big kernel lock
Date: Wed, 19 May 2010 13:03:18 +0100 [thread overview]
Message-ID: <20100519120315.16717.13936.stgit@localhost.localdomain> (raw)
In-Reply-To: <20100519120111.16717.71992.stgit@localhost.localdomain>
The lock is no longer needed for wait until sent paths so this can go
Signed-off-by: Alan Cox <alan@linux.intel.com>
---
drivers/char/epca.c | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 6f5ffe1..d9df46a 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -36,7 +36,7 @@
#include <linux/ctype.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
-#include <linux/smp_lock.h>
+#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/uaccess.h>
@@ -2105,7 +2105,6 @@ static int pc_ioctl(struct tty_struct *tty, struct file *file,
break;
case DIGI_SETAW:
case DIGI_SETAF:
- lock_kernel();
if (cmd == DIGI_SETAW) {
/* Setup an event to indicate when the transmit
buffer empties */
@@ -2118,7 +2117,6 @@ static int pc_ioctl(struct tty_struct *tty, struct file *file,
if (tty->ldisc->ops->flush_buffer)
tty->ldisc->ops->flush_buffer(tty);
}
- unlock_kernel();
/* Fall Thru */
case DIGI_SETA:
if (copy_from_user(&ch->digiext, argp, sizeof(digi_t)))
next prev parent reply other threads:[~2010-05-19 12:45 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-19 12:01 [PATCH 00/11] BKL pruning and serial bug fixing Alan Cox
2010-05-19 12:01 ` [PATCH 01/11] tty: Fix the digi acceleport driver NULL checks Alan Cox
2010-05-19 12:02 ` [PATCH 02/11] stallion: prune lock_kernel calls Alan Cox
2010-05-19 12:02 ` [PATCH 03/11] istallion: use bit ops for the board flags Alan Cox
2010-05-19 12:02 ` [PATCH 04/11] riscom8: kill use of lock_kernel Alan Cox
2010-05-19 12:02 ` [PATCH 05/11] isicom: kill off the BKL Alan Cox
2010-05-19 12:02 ` [PATCH 06/11] rocket: kill BKL Alan Cox
2010-05-19 12:02 ` [PATCH 07/11] synclink: kill the big kernel lock Alan Cox
2010-05-19 12:03 ` [PATCH 08/11] cyclades: Kill off BKL usage Alan Cox
2010-05-19 12:03 ` Alan Cox [this message]
2010-05-19 12:03 ` [PATCH 10/11] specialix; Kill the BKL Alan Cox
2010-05-19 12:03 ` [PATCH 11/11] synclink: reworking locking a bit Alan Cox
2010-05-20 17:56 ` [PATCH 00/11] BKL pruning and serial bug fixing Greg KH
2010-05-20 18:06 ` Alan Cox
2010-05-20 19:01 ` Greg KH
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100519120315.16717.13936.stgit@localhost.localdomain \
--to=alan@linux.intel.com \
--cc=greg@kroah.com \
--cc=linux-serial@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).