[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-aio
Subject:    [PATCH] aio: fix build when migration is disabled
From:       Benjamin LaHaise <bcrl () kvack ! org>
Date:       2013-07-17 13:55:41
Message-ID: 20130717135541.GE19643 () kvack ! org
[Download RAW message or body]

When "fs/aio: Add support to aio ring pages migration" was applied, it
broke the build when CONFIG_MIGRATION was disabled.  Wrap the migration
code with a test for CONFIG_MIGRATION to fix this and save a few bytes
when migration is disabled.

Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
---
 fs/aio.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/aio.c b/fs/aio.c
index cbd0afe..dedeea0 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -181,6 +181,7 @@ static int aio_set_page_dirty(struct page *page)
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_MIGRATION)
 static int aio_migratepage(struct address_space *mapping, struct page *new,
 			struct page *old, enum migrate_mode mode)
 {
@@ -208,10 +209,13 @@ static int aio_migratepage(struct address_space *mapping, struct page *new,
 
 	return rc;
 }
+#endif
 
 static const struct address_space_operations aio_ctx_aops = {
 	.set_page_dirty = aio_set_page_dirty,
+#if IS_ENABLED(CONFIG_MIGRATION)
 	.migratepage	= aio_migratepage,
+#endif
 };
 
 static int aio_setup_ring(struct kioctx *ctx)
-- 
1.8.2.1


-- 
"Thought is the essence of where you are now."

--
To unsubscribe, send a message with 'unsubscribe linux-aio' in
the body to majordomo@kvack.org.  For more info on Linux AIO,
see: http://www.kvack.org/aio/
Don't email: <a href=mailto:"aart@kvack.org">aart@kvack.org</a>
[prev in list] [next in list] [prev in thread] [next in thread]