The patch titled
drivers/char/tty_io.c: remove pty_sem
has been added to the -mm tree. Its filename is
drivers-char-tty_ioc-remove-pty_sem.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: drivers/char/tty_io.c: remove pty_sem
From: Daniel Walker <dwalker@xxxxxxxxxx>
I couldn't find any users, so removing it..
Signed-off-by: Daniel Walker <dwalker@xxxxxxxxxx>
Acked-by: Alan Cox <alan@xxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/tty_io.c | 1 -
include/linux/tty.h | 1 -
2 files changed, 2 deletions(-)
diff -puN drivers/char/tty_io.c~drivers-char-tty_ioc-remove-pty_sem drivers/char/tty_io.c
--- a/drivers/char/tty_io.c~drivers-char-tty_ioc-remove-pty_sem
+++ a/drivers/char/tty_io.c
@@ -3721,7 +3721,6 @@ static void initialize_tty_struct(struct
tty->buf.head = tty->buf.tail = NULL;
tty_buffer_init(tty);
INIT_DELAYED_WORK(&tty->buf.work, flush_to_ldisc);
- init_MUTEX(&tty->buf.pty_sem);
mutex_init(&tty->termios_mutex);
init_waitqueue_head(&tty->write_wait);
init_waitqueue_head(&tty->read_wait);
diff -puN include/linux/tty.h~drivers-char-tty_ioc-remove-pty_sem include/linux/tty.h
--- a/include/linux/tty.h~drivers-char-tty_ioc-remove-pty_sem
+++ a/include/linux/tty.h
@@ -74,7 +74,6 @@ struct tty_buffer {
struct tty_bufhead {
struct delayed_work work;
- struct semaphore pty_sem;
spinlock_t lock;
struct tty_buffer *head; /* Queue head */
struct tty_buffer *tail; /* Active buffer */
_
Patches currently in -mm which might be from dwalker@xxxxxxxxxx are
drivers-char-tty_ioc-remove-pty_sem.patch
drivers-isdn-i4l-isdn_ttyc-remove-write_sem.patch
unix98-allocated_ptys_lock-semaphore-to-mutex.patch
isapnp-driver-semaphore-to-mutex.patch
isapnp-driver-semaphore-to-mutex-fix.patch
isapnp-driver-semaphore-to-mutex-fix-fix.patch
profile-likely-unlikely-macros.patch
profile-likely-unlikely-macros-fix.patch
-
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