tty: Rename tty buffer memory_used field

Trim up the memory_used field name to mem_used.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index 57eb34b..e8f22f8 100644 (file)
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -89,7 +89,7 @@ void tty_buffer_unlock_exclusive(struct tty_port *port)
 
 int tty_buffer_space_avail(struct tty_port *port)
 {
-       int space = port->buf.mem_limit - atomic_read(&port->buf.memory_used);
+       int space = port->buf.mem_limit - atomic_read(&port->buf.mem_used);
        return max(space, 0);
 }
 
@@ -129,7 +129,7 @@ void tty_buffer_free_all(struct tty_port *port)
        buf->head = &buf->sentinel;
        buf->tail = &buf->sentinel;
 
-       atomic_set(&buf->memory_used, 0);
+       atomic_set(&buf->mem_used, 0);
 }
 
 /**
@@ -162,7 +162,7 @@ static struct tty_buffer *tty_buffer_alloc(struct tty_port *port, size_t size)
 
        /* Should possibly check if this fails for the largest buffer we
           have queued and recycle that ? */
-       if (atomic_read(&port->buf.memory_used) > port->buf.mem_limit)
+       if (atomic_read(&port->buf.mem_used) > port->buf.mem_limit)
                return NULL;
        p = kmalloc(sizeof(struct tty_buffer) + 2 * size, GFP_ATOMIC);
        if (p == NULL)
@@ -170,7 +170,7 @@ static struct tty_buffer *tty_buffer_alloc(struct tty_port *port, size_t size)
 
 found:
        tty_buffer_reset(p, size);
-       atomic_add(size, &port->buf.memory_used);
+       atomic_add(size, &port->buf.mem_used);
        return p;
 }
 
@@ -188,7 +188,7 @@ static void tty_buffer_free(struct tty_port *port, struct tty_buffer *b)
        struct tty_bufhead *buf = &port->buf;
 
        /* Dumb strategy for now - should keep some stats */
-       WARN_ON(atomic_sub_return(b->size, &buf->memory_used) < 0);
+       WARN_ON(atomic_sub_return(b->size, &buf->mem_used) < 0);
 
        if (b->size > MIN_TTYB_SIZE)
                kfree(b);
@@ -533,7 +533,7 @@ void tty_buffer_init(struct tty_port *port)
        buf->head = &buf->sentinel;
        buf->tail = &buf->sentinel;
        init_llist_head(&buf->free);
-       atomic_set(&buf->memory_used, 0);
+       atomic_set(&buf->mem_used, 0);
        atomic_set(&buf->priority, 0);
        INIT_WORK(&buf->work, flush_to_ldisc);
        buf->mem_limit = TTYB_DEFAULT_MEM_LIMIT;

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 2225745..38fcc05 100644 (file)
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -60,7 +60,7 @@ 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 */
 };