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yaml
---
r: 25504
b: refs/heads/master
c: e1a2509
h: refs/heads/master
v: v3
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Andrew Morton authored and Linus Torvalds committed Apr 11, 2006
1 parent 6f0499f commit 6699a0a
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Showing 3 changed files with 19 additions and 30 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: d824e66a9a427faf69c58f98dd7e1c3d1bb51c61
refs/heads/master: e1a2509023785bd3199ac068ab80155aeba01265
22 changes: 16 additions & 6 deletions trunk/drivers/char/tty_io.c
Original file line number Diff line number Diff line change
Expand Up @@ -351,10 +351,10 @@ int tty_buffer_request_room(struct tty_struct *tty, size_t size)
spin_unlock_irqrestore(&tty->buf.lock, flags);
return size;
}

EXPORT_SYMBOL_GPL(tty_buffer_request_room);

int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size)
int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars,
size_t size)
{
int copied = 0;
do {
Expand All @@ -368,17 +368,16 @@ int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, s
tb->used += space;
copied += space;
chars += space;
/* printk("Flip insert %d.\n", space); */
}
/* There is a small chance that we need to split the data over
several buffers. If this is the case we must loop */
while (unlikely(size > copied));
return copied;
}

EXPORT_SYMBOL(tty_insert_flip_string);

int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size)
int tty_insert_flip_string_flags(struct tty_struct *tty,
const unsigned char *chars, const char *flags, size_t size)
{
int copied = 0;
do {
Expand All @@ -399,9 +398,20 @@ int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *ch
while (unlikely(size > copied));
return copied;
}

EXPORT_SYMBOL_GPL(tty_insert_flip_string_flags);

void tty_schedule_flip(struct tty_struct *tty)
{
unsigned long flags;
spin_lock_irqsave(&tty->buf.lock, flags);
if (tty->buf.tail != NULL) {
tty->buf.tail->active = 0;
tty->buf.tail->commit = tty->buf.tail->used;
}
spin_unlock_irqrestore(&tty->buf.lock, flags);
schedule_delayed_work(&tty->buf.work, 1);
}
EXPORT_SYMBOL(tty_schedule_flip);

/*
* Prepare a block of space in the buffer for data. Returns the length
Expand Down
25 changes: 2 additions & 23 deletions trunk/include/linux/tty_flip.h
Original file line number Diff line number Diff line change
Expand Up @@ -6,9 +6,10 @@ extern int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *c
extern int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size);
extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size);
extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size);
void tty_schedule_flip(struct tty_struct *tty);

static inline int tty_insert_flip_char(struct tty_struct *tty,
unsigned char ch, char flag)
unsigned char ch, char flag)
{
struct tty_buffer *tb = tty->buf.tail;
if (tb && tb->active && tb->used < tb->size) {
Expand All @@ -19,26 +20,4 @@ static inline int tty_insert_flip_char(struct tty_struct *tty,
return tty_insert_flip_string_flags(tty, &ch, &flag, 1);
}

static inline void tty_schedule_flip(struct tty_struct *tty)
{
unsigned long flags;
spin_lock_irqsave(&tty->buf.lock, flags);
if (tty->buf.tail != NULL) {
tty->buf.tail->active = 0;
tty->buf.tail->commit = tty->buf.tail->used;
}
spin_unlock_irqrestore(&tty->buf.lock, flags);
schedule_delayed_work(&tty->buf.work, 1);
}

#undef _INLINE_


#endif /* _LINUX_TTY_FLIP_H */







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