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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-19 13:40:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-19 13:40:03 -0700
commit8dba8f949492cf2ffb32c1c2fbfe12c3f53b1866 (patch)
treeeb91a9a4f3ab0f71ca388fd17cb7dd9e03adb9f4 /include/linux
parent2eb645e7b5662da47646f76b41b4141f2c9bf13a (diff)
parent336cee42dd52824e360ab419eab4e8888eb054ec (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: tty_port,usb-console: Fix usb serial console open/close regression tty: cpm_uart: use resource_size() tty_buffer: Fix distinct type warning hvc_console: Fix race between hvc_close and hvc_remove uartlite: Fix build on sparc. tty: Take a 256 byte padding into account when buffering below sub-page units Revert "tty: Add a new VT mode which is like VT_PROCESS but doesn't require a VT_RELDISP ioctl call"
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/tty.h10
-rw-r--r--include/linux/vt.h3
2 files changed, 7 insertions, 6 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 568369a8630..4409967db0c 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -70,12 +70,13 @@ struct tty_buffer {
/*
* We default to dicing tty buffer allocations to this many characters
- * in order to avoid multiple page allocations. We assume tty_buffer itself
- * is under 256 bytes. See tty_buffer_find for the allocation logic this
- * must match
+ * in order to avoid multiple page allocations. We know the size of
+ * tty_buffer itself but it must also be taken into account that the
+ * the buffer is 256 byte aligned. See tty_buffer_find for the allocation
+ * logic this must match
*/
-#define TTY_BUFFER_PAGE ((PAGE_SIZE - 256) / 2)
+#define TTY_BUFFER_PAGE (((PAGE_SIZE - sizeof(struct tty_buffer)) / 2) & ~0xFF)
struct tty_bufhead {
@@ -223,6 +224,7 @@ struct tty_port {
wait_queue_head_t close_wait; /* Close waiters */
wait_queue_head_t delta_msr_wait; /* Modem status change */
unsigned long flags; /* TTY flags ASY_*/
+ unsigned char console:1; /* port is a console */
struct mutex mutex; /* Locking */
struct mutex buf_mutex; /* Buffer alloc lock */
unsigned char *xmit_buf; /* Optional buffer */
diff --git a/include/linux/vt.h b/include/linux/vt.h
index 778b7b2a47d..d5dd0bc408f 100644
--- a/include/linux/vt.h
+++ b/include/linux/vt.h
@@ -27,7 +27,7 @@ struct vt_mode {
#define VT_SETMODE 0x5602 /* set mode of active vt */
#define VT_AUTO 0x00 /* auto vt switching */
#define VT_PROCESS 0x01 /* process controls switching */
-#define VT_PROCESS_AUTO 0x02 /* process is notified of switching */
+#define VT_ACKACQ 0x02 /* acknowledge switch */
struct vt_stat {
unsigned short v_active; /* active vt */
@@ -38,7 +38,6 @@ struct vt_stat {
#define VT_SENDSIG 0x5604 /* signal to send to bitmask of vts */
#define VT_RELDISP 0x5605 /* release display */
-#define VT_ACKACQ 0x02 /* acknowledge switch */
#define VT_ACTIVATE 0x5606 /* make vt active */
#define VT_WAITACTIVE 0x5607 /* wait for vt active */