lkml.org 
[lkml]   [2006]   [May]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] mm: cleanup swap unused warning
Date
Are there any users of swp_entry_t when CONFIG_SWAP is not defined?

This patch fixes a warning for !CONFIG_SWAP for me.

---
if CONFIG_SWAP is not defined we get:
mm/vmscan.c: In function ‘remove_mapping’:
mm/vmscan.c:387: warning: unused variable ‘swap’

Signed-off-by: Con Kolivas <kernel@kolivas.org>

---
include/linux/swap.h | 15 +++++++++++----
1 files changed, 11 insertions(+), 4 deletions(-)
Index: linux-2.6.17-rc3-mm1/include/linux/swap.h
===================================================================
--- linux-2.6.17-rc3-mm1.orig/include/linux/swap.h 2006-05-10 21:14:41.000000000 +1000
+++ linux-2.6.17-rc3-mm1/include/linux/swap.h 2006-05-10 21:24:31.000000000 +1000
@@ -67,13 +67,20 @@ union swap_header {
} info;
};

- /* A swap entry has to fit into a "unsigned long", as
- * the entry is hidden in the "index" field of the
- * swapper address space.
- */
+/*
+ * A swap entry has to fit into a "unsigned long", as
+ * the entry is hidden in the "index" field of the
+ * swapper address space.
+ */
+#ifdef CONFIG_SWAP
typedef struct {
unsigned long val;
} swp_entry_t;
+#else
+typedef struct {
+ unsigned long val;
+} swp_entry_t __attribute__((__unused__));
+#endif

/*
* current->reclaim_state points to one of these when a task is running
--
-ck
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-05-10 13:36    [from the cache]
©2003-2011 Jasper Spaans