Fix f_version type: should be u64 instead of unsigned long

Fix f_version type: should be u64 instead of long

There is a type inconsistency between struct inode i_version and struct file
f_version.

fs.h:

struct inode
  u64                     i_version;

and

struct file
  unsigned long           f_version;

Users do:

fs/ext3/dir.c:

if (filp->f_version != inode->i_version) {

So why isn't f_version a u64 ? It becomes a problem if versions gets
higher than 2^32 and we are on an architecture where longs are 32 bits.

This patch changes the f_version type to u64, and updates the users accordingly.

It applies to 2.6.23-rc2-mm2.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Martin Bligh <mbligh@google.com>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: <linux-ext4@vger.kernel.org>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index bb89a5dfe9..30aca33994 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -792,7 +792,7 @@ struct file {
         unsigned int            f_uid, f_gid;
         struct file_ra_state    f_ra;
 
-        unsigned long           f_version;
+        u64                     f_version;
 #ifdef CONFIG_SECURITY
         void                    *f_security;
 #endif
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 8bf1e05115..ebbc02b325 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -18,7 +18,7 @@ struct seq_file {
         size_t from;
         size_t count;
         loff_t index;
-        loff_t version;
+        u64 version;
         struct mutex lock;
         const struct seq_operations *op;
         void *private;