linux-next: manual merge of the cleancache tree with Linus' tree

From: Stephen Rothwell
Date: Mon Feb 14 2011 - 01:17:23 EST


Hi Dan,

Today's linux-next merge of the cleancache tree got a conflict in
fs/super.c between commit d863b50ab01333659314c2034890cb76d9fdc3c7 ("vfs:
call rcu_barrier after ->kill_sb()") from Linus' tree and commit
03e838947c8abe29a9d7abfaf7fd9125a46b70e9 ("mm/fs: add hooks to support
cleancache") from the cleancache tree.

I fixed it up (see below) and can carry the fix as necessary.

--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx

diff --cc fs/super.c
index 7e9dd4c,30a54e0..0000000
--- a/fs/super.c
+++ b/fs/super.c
@@@ -30,7 -30,7 +30,8 @@@
#include <linux/idr.h>
#include <linux/mutex.h>
#include <linux/backing-dev.h>
+#include <linux/rculist_bl.h>
+ #include <linux/cleancache.h>
#include "internal.h"


@@@ -177,11 -178,7 +179,12 @@@ void deactivate_locked_super(struct sup
struct file_system_type *fs = s->s_type;
if (atomic_dec_and_test(&s->s_active)) {
fs->kill_sb(s);
+ /*
+ * We need to call rcu_barrier so all the delayed rcu free
+ * inodes are flushed before we release the fs module.
+ */
+ rcu_barrier();
+ cleancache_flush_fs(s);
put_filesystem(fs);
put_super(s);
} else {
--
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