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authorIngo Molnar <mingo@elte.hu>2010-10-07 09:43:11 +0200
committerIngo Molnar <mingo@elte.hu>2010-10-07 09:43:11 +0200
commitd4f8f217b8a5d5bd02af979650418dca4caec472 (patch)
treeaf047bfa9729c975e24cb7624107574e884d3a57 /drivers/char/vt_ioctl.c
parent2dfbf4dfbe47a484bae20456c12b40763b9b6af7 (diff)
parent773e3f93577ffb493fb7c39b1a6ecf39b5748e87 (diff)
downloadlwn-d4f8f217b8a5d5bd02af979650418dca4caec472.tar.gz
lwn-d4f8f217b8a5d5bd02af979650418dca4caec472.zip
Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu into core/rcu
Diffstat (limited to 'drivers/char/vt_ioctl.c')
-rw-r--r--drivers/char/vt_ioctl.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index 2bbeaaea46e9..38df8c19e74c 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -533,11 +533,14 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
case KIOCSOUND:
if (!perm)
goto eperm;
- /* FIXME: This is an old broken API but we need to keep it
- supported and somehow separate the historic advertised
- tick rate from any real one */
+ /*
+ * The use of PIT_TICK_RATE is historic, it used to be
+ * the platform-dependent CLOCK_TICK_RATE between 2.6.12
+ * and 2.6.36, which was a minor but unfortunate ABI
+ * change.
+ */
if (arg)
- arg = CLOCK_TICK_RATE / arg;
+ arg = PIT_TICK_RATE / arg;
kd_mksound(arg, 0);
break;
@@ -553,11 +556,8 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
*/
ticks = HZ * ((arg >> 16) & 0xffff) / 1000;
count = ticks ? (arg & 0xffff) : 0;
- /* FIXME: This is an old broken API but we need to keep it
- supported and somehow separate the historic advertised
- tick rate from any real one */
if (count)
- count = CLOCK_TICK_RATE / count;
+ count = PIT_TICK_RATE / count;
kd_mksound(count, ticks);
break;
}