[PATCH 01/20] mm: serialize access to min_free_kbytes

From: Peter Zijlstra
Date: Tue Sep 12 2006 - 11:59:08 EST

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Stop some other people peering into the baud bits on their own and make
them use the tty_get_baud_rate() helper as a preperation for the move to
the new termios. Corrected dependancy previous one had on new termios
structs

Signed-off-by: Alan Cox <alan@xxxxxxxxxx>

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc6-mm1/drivers/char/moxa.c linux-2.6.18-rc6-mm1/drivers/char/moxa.c
--- linux.vanilla-2.6.18-rc6-mm1/drivers/char/moxa.c 2006-09-11 17:00:09.000000000 +0100
+++ linux-2.6.18-rc6-mm1/drivers/char/moxa.c 2006-09-11 17:18:31.000000000 +0100
@@ -260,7 +260,7 @@
static void MoxaPortDisable(int);
static long MoxaPortGetMaxBaud(int);
static long MoxaPortSetBaud(int, long);
-static int MoxaPortSetTermio(int, struct termios *);
+static int MoxaPortSetTermio(int, struct termios *, speed_t);
static int MoxaPortGetLineOut(int, int *, int *);
static void MoxaPortLineCtrl(int, int, int);
static void MoxaPortFlowCtrl(int, int, int, int, int, int);
@@ -986,7 +988,7 @@
if (ts->c_iflag & IXANY)
xany = 1;
MoxaPortFlowCtrl(ch->port, rts, cts, txflow, rxflow, xany);
- MoxaPortSetTermio(ch->port, ts);
+ MoxaPortSetTermio(ch->port, ts, tty_get_baud_rate(tty));
}

static int block_till_ready(struct tty_struct *tty, struct file *filp,
@@ -1900,9 +1902,10 @@
*
* Function 12: Configure the port.
* Syntax:
- * int MoxaPortSetTermio(int port, struct termios *termio);
+ * int MoxaPortSetTermio(int port, struct termios *termio, speed_t baud);
* int port : port number (0 - 127)
* struct termios * termio : termio structure pointer
+ * speed_t baud : baud rate
*
* return: -1 : this port is invalid or termio == NULL
* 0 : setting O.K.
@@ -2182,11 +2185,10 @@
return (baud);
}

-int MoxaPortSetTermio(int port, struct termios *termio)
+int MoxaPortSetTermio(int port, struct termios *termio, speed_t baud)
{
void __iomem *ofsAddr;
tcflag_t cflag;
- long baud;
tcflag_t mode = 0;

if (moxaChkPort[port] == 0 || termio == 0)
@@ -2221,78 +2223,10 @@
mode |= MX_PARNONE;

moxafunc(ofsAddr, FC_SetDataMode, (ushort) mode);
-
- cflag &= (CBAUD | CBAUDEX);
-#ifndef B921600
-#define B921600 (B460800+1)
-#endif
- switch (cflag) {
- case B921600:
- baud = 921600L;
- break;
- case B460800:
- baud = 460800L;
- break;
- case B230400:
- baud = 230400L;
- break;
- case B115200:
- baud = 115200L;
- break;
- case B57600:
- baud = 57600L;
- break;
- case B38400:
- baud = 38400L;
- break;
- case B19200:
- baud = 19200L;
- break;
- case B9600:
- baud = 9600L;
- break;
- case B4800:
- baud = 4800L;
- break;
- case B2400:
- baud = 2400L;
- break;
- case B1800:
- baud = 1800L;
- break;
- case B1200:
- baud = 1200L;
- break;
- case B600:
- baud = 600L;
- break;
- case B300:
- baud = 300L;
- break;
- case B200:
- baud = 200L;
- break;
- case B150:
- baud = 150L;
- break;
- case B134:
- baud = 134L;
- break;
- case B110:
- baud = 110L;
- break;
- case B75:
- baud = 75L;
- break;
- case B50:
- baud = 50L;
- break;
- default:
- baud = 0;
- }
+
if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
(moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) {
- if (baud == 921600L)
+ if (baud >= 921600L)
return (-1);
}
MoxaPortSetBaud(port, baud);
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc6-mm1/drivers/char/mxser.c linux-2.6.18-rc6-mm1/drivers/char/mxser.c
--- linux.vanilla-2.6.18-rc6-mm1/drivers/char/mxser.c 2006-09-11 17:00:09.000000000 +0100
+++ linux-2.6.18-rc6-mm1/drivers/char/mxser.c 2006-09-11 17:18:38.000000000 +0100
@@ -2540,71 +2542,7 @@
#define B921600 (B460800 +1)
#endif
if (mxser_set_baud_method[info->port] == 0) {
- switch (cflag & (CBAUD | CBAUDEX)) {
- case B921600:
- baud = 921600;
- break;
- case B460800:
- baud = 460800;
- break;
- case B230400:
- baud = 230400;
- break;
- case B115200:
- baud = 115200;
- break;
- case B57600:
- baud = 57600;
- break;
- case B38400:
- baud = 38400;
- break;
- case B19200:
- baud = 19200;
- break;
- case B9600:
- baud = 9600;
- break;
- case B4800:
- baud = 4800;
- break;
- case B2400:
- baud = 2400;
- break;
- case B1800:
- baud = 1800;
- break;
- case B1200:
- baud = 1200;
- break;
- case B600:
- baud = 600;
- break;
- case B300:
- baud = 300;
- break;
- case B200:
- baud = 200;
- break;
- case B150:
- baud = 150;
- break;
- case B134:
- baud = 134;
- break;
- case B110:
- baud = 110;
- break;
- case B75:
- baud = 75;
- break;
- case B50:
- baud = 50;
- break;
- default:
- baud = 0;
- break;
- }
+ baud = tty_get_baud_rate(info->tty);
mxser_set_baud(info, baud);
}

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc6-mm1/drivers/char/riscom8.c linux-2.6.18-rc6-mm1/drivers/char/riscom8.c
--- linux.vanilla-2.6.18-rc6-mm1/drivers/char/riscom8.c 2006-09-11 17:00:09.000000000 +0100
+++ linux-2.6.18-rc6-mm1/drivers/char/riscom8.c 2006-09-11 17:18:45.000000000 +0100
@@ -675,26 +675,12 @@
port->COR2 = 0;
port->MSVR = MSVR_RTS;

- baud = C_BAUD(tty);
-
- if (baud & CBAUDEX) {
- baud &= ~CBAUDEX;
- if (baud < 1 || baud > 2)
- port->tty->termios->c_cflag &= ~CBAUDEX;
- else
- baud += 15;
- }
- if (baud == 15) {
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- baud ++;
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- baud += 2;
- }
+ baud = tty_get_baud_rate(tty);

/* Select port on the board */
rc_out(bp, CD180_CAR, port_No(port));

- if (!baud_table[baud]) {
+ if (!baud) {
/* Drop DTR & exit */
bp->DTR |= (1u << port_No(port));
rc_out(bp, RC_DTR, bp->DTR);
@@ -710,7 +696,7 @@
*/

/* Set baud rate for port */
- tmp = (((RC_OSCFREQ + baud_table[baud]/2) / baud_table[baud] +
+ tmp = (((RC_OSCFREQ + baud/2) / baud +
CD180_TPC/2) / CD180_TPC);

rc_out(bp, CD180_RBPRH, (tmp >> 8) & 0xff);
@@ -718,7 +704,7 @@
rc_out(bp, CD180_RBPRL, tmp & 0xff);
rc_out(bp, CD180_TBPRL, tmp & 0xff);

- baud = (baud_table[baud] + 5) / 10; /* Estimated CPS */
+ baud = (baud + 5) / 10; /* Estimated CPS */

/* Two timer ticks seems enough to wakeup something like SLIP driver */
tmp = ((baud + HZ/2) / HZ) * 2 - CD180_NFIFO;

-
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Next message: Alan Cox: "[PATCH] serial: Fix up offenders peering at baud bits directly,corrected"
Previous message: Peter Zijlstra: "[PATCH 11/20] nbd: request_fn fixup"
In reply to: Jens Axboe: "Re: [PATCH 11/20] nbd: request_fn fixup"
Next in thread: Peter Zijlstra: "[PATCH 05/20] uml: rename arch/um remove_mapping()"
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