From 96018fdacbfcaf6a0694d066b525f67c24025688 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Sun, 6 May 2007 14:49:55 -0700
Subject: [PATCH] mm: optimize acorn partition truncate

invalidate_bdev() is superfluous when truncate_inode_pages() is also
called.  do call invalidate_bh_lrus() though, to avoid stale pointers.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/partitions/acorn.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/partitions/acorn.c b/fs/partitions/acorn.c
index 9a6826c63818a..e3491328596bc 100644
--- a/fs/partitions/acorn.c
+++ b/fs/partitions/acorn.c
@@ -271,7 +271,7 @@ adfspart_check_ADFS(struct parsed_partitions *state, struct block_device *bdev)
 		extern void xd_set_geometry(struct block_device *,
 			unsigned char, unsigned char, unsigned int);
 		xd_set_geometry(bdev, dr->secspertrack, heads, 1);
-		invalidate_bdev(bdev);
+		invalidate_bh_lrus();
 		truncate_inode_pages(bdev->bd_inode->i_mapping, 0);
 	}
 #endif
-- 
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