VFS: Convert abuses of sector_t

[Trond Myklebust]

From: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>

The type "sector_t" is heavily tied in to the block layer interface as an
offset/handle to a block, and is subject to a supposedly block-specific
configuration option: CONFIG_LBD. Despite this, it is used in struct
kstatfs to save a couple of bytes on the stack whenever we call the
filesystems' ->statfs().

One consequence is that networked filesystems may break if CONFIG_LBD is
not set, since it is quite common to have multi-TB remote filesystems.

The following patch just converts struct kstatfs to use the standard type u64.

Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
---

 include/linux/statfs.h |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/statfs.h b/include/linux/statfs.h
index ad83a2b..b34cc82 100644
--- a/include/linux/statfs.h
+++ b/include/linux/statfs.h
@@ -8,11 +8,11 @@
 struct kstatfs {
 	long f_type;
 	long f_bsize;
-	sector_t f_blocks;
-	sector_t f_bfree;
-	sector_t f_bavail;
-	sector_t f_files;
-	sector_t f_ffree;
+	u64 f_blocks;
+	u64 f_bfree;
+	u64 f_bavail;
+	u64 f_files;
+	u64 f_ffree;
 	__kernel_fsid_t f_fsid;
 	long f_namelen;
 	long f_frsize;


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