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authorDavid Chinner <david@fromorbit.com>2008-08-13 15:45:15 +1000
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-08-13 15:45:15 +1000
commit016516462575d28fab3354f762cad16c86c09116 (patch)
treeef644fe09f5eb963df28ad7e7bda3d547cae46d1
parent3790689fa3c771bba6bafb7dee3e8389dd0b55bc (diff)
[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>
-rw-r--r--fs/xfs/linux-2.6/xfs_export.c6
-rw-r--r--fs/xfs/linux-2.6/xfs_fs_subr.c6
-rw-r--r--fs/xfs/linux-2.6/xfs_iops.c14
-rw-r--r--fs/xfs/linux-2.6/xfs_iops.h6
-rw-r--r--fs/xfs/linux-2.6/xfs_lrw.c2
-rw-r--r--fs/xfs/linux-2.6/xfs_super.c4
-rw-r--r--fs/xfs/xfs_iget.c7
-rw-r--r--fs/xfs/xfs_inode.h22
-rw-r--r--fs/xfs/xfs_utils.c4
9 files changed, 41 insertions, 30 deletions
diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index 987fe84f7b1..d3880b7c147 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -139,7 +139,7 @@ xfs_nfs_get_inode(
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
- return ip->i_vnode;
+ return VFS_I(ip);
}
STATIC struct dentry *
@@ -219,9 +219,9 @@ xfs_fs_get_parent(
if (unlikely(error))
return ERR_PTR(-error);
- parent = d_alloc_anon(cip->i_vnode);
+ parent = d_alloc_anon(VFS_I(cip));
if (unlikely(!parent)) {
- iput(cip->i_vnode);
+ iput(VFS_I(cip));
return ERR_PTR(-ENOMEM);
}
return parent;
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index 1eefe61f0e1..36caa6d957d 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;
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index e88f5102808..fec5ff5a2f1 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -62,7 +62,7 @@ void
xfs_synchronize_atime(
xfs_inode_t *ip)
{
- struct inode *inode = ip->i_vnode;
+ struct inode *inode = VFS_I(ip);
if (inode) {
ip->i_d.di_atime.t_sec = (__int32_t)inode->i_atime.tv_sec;
@@ -79,7 +79,7 @@ void
xfs_mark_inode_dirty_sync(
xfs_inode_t *ip)
{
- struct inode *inode = ip->i_vnode;
+ struct inode *inode = VFS_I(ip);
if (inode)
mark_inode_dirty_sync(inode);
@@ -299,7 +299,7 @@ xfs_vn_mknod(
if (unlikely(error))
goto out_free_acl;
- inode = ip->i_vnode;
+ inode = VFS_I(ip);
error = xfs_init_security(inode, dir);
if (unlikely(error))
@@ -366,7 +366,7 @@ xfs_vn_lookup(
return NULL;
}
- return d_splice_alias(cip->i_vnode, dentry);
+ return d_splice_alias(VFS_I(cip), dentry);
}
STATIC struct dentry *
@@ -399,12 +399,12 @@ xfs_vn_ci_lookup(
/* if exact match, just splice and exit */
if (!ci_name.name)
- return d_splice_alias(ip->i_vnode, dentry);
+ return d_splice_alias(VFS_I(ip), dentry);
/* else case-insensitive match... */
dname.name = ci_name.name;
dname.len = ci_name.len;
- dentry = d_add_ci(ip->i_vnode, dentry, &dname);
+ dentry = d_add_ci(VFS_I(ip), dentry, &dname);
kmem_free(ci_name.name);
return dentry;
}
@@ -478,7 +478,7 @@ xfs_vn_symlink(
if (unlikely(error))
goto out;
- inode = cip->i_vnode;
+ inode = VFS_I(cip);
error = xfs_init_security(inode, dir);
if (unlikely(error))
diff --git a/fs/xfs/linux-2.6/xfs_iops.h b/fs/xfs/linux-2.6/xfs_iops.h
index d97ba934a2a..fdda404bc34 100644
--- a/fs/xfs/linux-2.6/xfs_iops.h
+++ b/fs/xfs/linux-2.6/xfs_iops.h
@@ -33,10 +33,4 @@ struct xfs_inode;
extern void xfs_ichgtime(struct xfs_inode *, int);
extern void xfs_ichgtime_fast(struct xfs_inode *, struct inode *, int);
-#define xfs_vtoi(vp) \
- ((struct xfs_inode *)vn_to_inode(vp)->i_private)
-
-#define XFS_I(inode) \
- ((struct xfs_inode *)(inode)->i_private)
-
#endif /* __XFS_IOPS_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 82333b3e118..e03e2c3789b 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -137,7 +137,7 @@ xfs_iozero(
struct address_space *mapping;
int status;
- mapping = ip->i_vnode->i_mapping;
+ mapping = VFS_I(ip)->i_mapping;
do {
unsigned offset, bytes;
void *fsdata;
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 30ae96397e3..b49722940d6 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -1106,7 +1106,7 @@ void
xfs_flush_inode(
xfs_inode_t *ip)
{
- struct inode *inode = ip->i_vnode;
+ struct inode *inode = VFS_I(ip);
igrab(inode);
xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inode_work);
@@ -1825,7 +1825,7 @@ xfs_fs_fill_super(
sb->s_time_gran = 1;
set_posix_acl_flag(sb);
- root = igrab(mp->m_rootip->i_vnode);
+ root = igrab(VFS_I(mp->m_rootip));
if (!root) {
error = ENOENT;
goto fail_unmount;
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index b07604b94d9..d44342640ca 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -411,10 +411,11 @@ xfs_iput(xfs_inode_t *ip,
* Special iput for brand-new inodes that are still locked
*/
void
-xfs_iput_new(xfs_inode_t *ip,
- uint lock_flags)
+xfs_iput_new(
+ xfs_inode_t *ip,
+ uint lock_flags)
{
- struct inode *inode = ip->i_vnode;
+ struct inode *inode = VFS_I(ip);
xfs_itrace_entry(ip);
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 17a04b6321e..4a5e48c8ded 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -263,6 +263,25 @@ typedef struct xfs_inode {
#define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
(ip)->i_size : (ip)->i_d.di_size;
+/* Convert from vfs inode to xfs inode */
+static inline struct xfs_inode *XFS_I(struct inode *inode)
+{
+ return (struct xfs_inode *)inode->i_private;
+}
+
+static inline struct xfs_inode *xfs_vtoi(bhv_vnode_t *vp)
+{
+ return XFS_I((struct inode *)vp);
+}
+
+/* convert from xfs inode to vfs inode */
+static inline struct inode *VFS_I(struct xfs_inode *ip)
+{
+ return (struct inode *)ip->i_vnode;
+}
+#define XFS_ITOV(ip) VFS_I(ip)
+#define XFS_ITOV_NULL(ip) VFS_I(ip)
+
/*
* i_flags helper functions
*/
@@ -439,9 +458,6 @@ xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
#define XFS_ITRUNC_DEFINITE 0x1
#define XFS_ITRUNC_MAYBE 0x2
-#define XFS_ITOV(ip) ((ip)->i_vnode)
-#define XFS_ITOV_NULL(ip) ((ip)->i_vnode)
-
/*
* For multiple groups support: if S_ISGID bit is set in the parent
* directory, group of new file is set to that of the parent, and
diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c
index 98e5f110ba5..35d4d414bcc 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -237,7 +237,7 @@ xfs_droplink(
ASSERT (ip->i_d.di_nlink > 0);
ip->i_d.di_nlink--;
- drop_nlink(ip->i_vnode);
+ drop_nlink(VFS_I(ip));
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
error = 0;
@@ -301,7 +301,7 @@ xfs_bumplink(
ASSERT(ip->i_d.di_nlink > 0);
ip->i_d.di_nlink++;
- inc_nlink(ip->i_vnode);
+ inc_nlink(VFS_I(ip));
if ((ip->i_d.di_version == XFS_DINODE_VERSION_1) &&
(ip->i_d.di_nlink > XFS_MAXLINK_1)) {
/*