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yaml --- r: 188808 b: refs/heads/master c: 352fa6a h: refs/heads/master v: v3
git-mirror · Mar 19, 2010 · 7b8d7e9 · 7b8d7e9
1 parent 9c24f2b
commit 7b8d7e9
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Showing 2 changed files with 6 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 87a6aca504d65f242589583e04df5e74b5eae1fe
+refs/heads/master: 352fa6ad16b89f8ffd1a93b4419b1a8f2259feab
diff --git a/trunk/include/linux/tty.h b/trunk/include/linux/tty.h
@@ -70,12 +70,13 @@ struct tty_buffer {
 
 /*
  * We default to dicing tty buffer allocations to this many characters
- * in order to avoid multiple page allocations. We assume tty_buffer itself
- * is under 256 bytes. See tty_buffer_find for the allocation logic this
- * must match
+ * in order to avoid multiple page allocations. We know the size of
+ * tty_buffer itself but it must also be taken into account that the
+ * the buffer is 256 byte aligned. See tty_buffer_find for the allocation
+ * logic this must match
  */
 
-#define TTY_BUFFER_PAGE		((PAGE_SIZE  - 256) / 2)
+#define TTY_BUFFER_PAGE	(((PAGE_SIZE - sizeof(struct tty_buffer)) / 2) & ~0xFF)
 
 
 struct tty_bufhead {