[XFS] Avoid directly referencing the VFS inode.

In several places we directly convert from the XFS inode
to the linux (VFS) inode by a simple deference of ip->i_vnode.
We should not do this - a helper function should be used to
extract the VFS inode from the XFS inode.

Introduce the function VFS_I() to extract the VFS inode
from the XFS inode. The name was chosen to match XFS_I() which
is used to extract the XFS inode from the VFS inode.

SGI-PV: 981498

SGI-Modid: xfs-linux-melb:xfs-kern:31720a

Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index 1eefe61f0e10..36caa6d957df 100644
--- a/fs/xfs/linux-2.6/xfs_fs_subr.c
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -31,7 +31,7 @@ xfs_tosspages(
         xfs_off_t       last,
         int             fiopt)
 {
-        struct address_space *mapping = ip->i_vnode->i_mapping;
+        struct address_space *mapping = VFS_I(ip)->i_mapping;
 
         if (mapping->nrpages)
                 truncate_inode_pages(mapping, first);
@@ -44,7 +44,7 @@ xfs_flushinval_pages(
         xfs_off_t       last,
         int             fiopt)
 {
-        struct address_space *mapping = ip->i_vnode->i_mapping;
+        struct address_space *mapping = VFS_I(ip)->i_mapping;
         int             ret = 0;
 
         if (mapping->nrpages) {
@@ -64,7 +64,7 @@ xfs_flush_pages(
         uint64_t        flags,
         int             fiopt)
 {
-        struct address_space *mapping = ip->i_vnode->i_mapping;
+        struct address_space *mapping = VFS_I(ip)->i_mapping;
         int             ret = 0;
         int             ret2;