diff options
Diffstat (limited to 'include/linux/tty.h')
| -rw-r--r-- | include/linux/tty.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h index 97d660ed70c1..ad98b4376968 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -39,10 +39,14 @@ struct tty_buffer { int size; int commit; int read; + int flags; /* Data points here */ unsigned long data[0]; }; +/* Values for .flags field of tty_buffer */ +#define TTYB_NORMAL 1 /* buffer has no flags buffer */ + static inline unsigned char *char_buf_ptr(struct tty_buffer *b, int ofs) { return ((unsigned char *)b->data) + ofs; @@ -60,7 +64,8 @@ struct tty_bufhead { atomic_t priority; struct tty_buffer sentinel; struct llist_head free; /* Free queue head */ - atomic_t memory_used; /* In-use buffers excluding free list */ + atomic_t mem_used; /* In-use buffers excluding free list */ + int mem_limit; struct tty_buffer *tail; /* Active buffer */ }; /* |
