diff options
| author | David S. Miller <davem@davemloft.net> | 2010-03-16 00:23:54 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-16 00:23:54 +0100 |
| commit | 4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch) | |
| tree | 44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /drivers/char/tty_buffer.c | |
| parent | net-2.6 [Bug-Fix][dccp]: fix oops caused after failed initialisation (diff) | |
| parent | Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/... (diff) | |
| download | linux-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.xz linux-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.zip | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/char/tty_buffer.c')
| -rw-r--r-- | drivers/char/tty_buffer.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/char/tty_buffer.c b/drivers/char/tty_buffer.c index 66fa4e10d76b..af8d97715728 100644 --- a/drivers/char/tty_buffer.c +++ b/drivers/char/tty_buffer.c @@ -231,9 +231,10 @@ int tty_buffer_request_room(struct tty_struct *tty, size_t size) EXPORT_SYMBOL_GPL(tty_buffer_request_room); /** - * tty_insert_flip_string - Add characters to the tty buffer + * tty_insert_flip_string_fixed_flag - Add characters to the tty buffer * @tty: tty structure * @chars: characters + * @flag: flag value for each character * @size: size * * Queue a series of bytes to the tty buffering. All the characters @@ -242,18 +243,19 @@ EXPORT_SYMBOL_GPL(tty_buffer_request_room); * Locking: Called functions may take tty->buf.lock */ -int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, - size_t size) +int tty_insert_flip_string_fixed_flag(struct tty_struct *tty, + const unsigned char *chars, char flag, size_t size) { int copied = 0; do { - int space = tty_buffer_request_room(tty, size - copied); + int goal = min(size - copied, TTY_BUFFER_PAGE); + int space = tty_buffer_request_room(tty, goal); struct tty_buffer *tb = tty->buf.tail; /* If there is no space then tb may be NULL */ if (unlikely(space == 0)) break; memcpy(tb->char_buf_ptr + tb->used, chars, space); - memset(tb->flag_buf_ptr + tb->used, TTY_NORMAL, space); + memset(tb->flag_buf_ptr + tb->used, flag, space); tb->used += space; copied += space; chars += space; @@ -262,7 +264,7 @@ int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, } while (unlikely(size > copied)); return copied; } -EXPORT_SYMBOL(tty_insert_flip_string); +EXPORT_SYMBOL(tty_insert_flip_string_fixed_flag); /** * tty_insert_flip_string_flags - Add characters to the tty buffer @@ -283,7 +285,8 @@ int tty_insert_flip_string_flags(struct tty_struct *tty, { int copied = 0; do { - int space = tty_buffer_request_room(tty, size - copied); + int goal = min(size - copied, TTY_BUFFER_PAGE); + int space = tty_buffer_request_room(tty, goal); struct tty_buffer *tb = tty->buf.tail; /* If there is no space then tb may be NULL */ if (unlikely(space == 0)) |