From d5c1963ac21f745cf19f5fe7af7766883e233371 Mon Sep 17 00:00:00 2001
From: adilger <adilger>
Date: Fri, 5 Apr 2002 20:29:12 +0000
Subject: [PATCH] Remove use of ext2-specific inode flags to signal
 objid-in-i_data.  Just use the check whether it is a regular file.

Also don't use memcpy when saving objid into inode - it should be endian
converted beforehand.
---
 lustre/mds/mds_ext2.c | 8 +++-----
 lustre/mds/mds_ext3.c | 8 +++-----
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/lustre/mds/mds_ext2.c b/lustre/mds/mds_ext2.c
index c03e867..85e0461 100644
--- a/lustre/mds/mds_ext2.c
+++ b/lustre/mds/mds_ext2.c
@@ -61,17 +61,15 @@ static int mds_ext2_setattr(struct dentry *dentry, void *handle,
  * FIXME: nasty hack - store the object id in the first two
  *        direct block spots.  This should be done with EAs...
  */
-#define EXT2_OBJID_FL   0x40000000
 static int mds_ext2_set_objid(struct inode *inode, void *handle, obd_id id)
 {
-        memcpy(inode->u.ext2_i.i_data, &id, sizeof(id));
-        inode->u.ext2_i.i_flags |= EXT2_OBJID_FL;
+        (__u64)(inode->u.ext2_i.i_data[0]) = cpu_to_le64(id);
         return 0;
 }
 
 static void mds_ext2_get_objid(struct inode *inode, obd_id *id)
 {
-        memcpy(id, &inode->u.ext2_i.i_data, sizeof(*id));
+        *id = le64_to_cpu(inode->u.ext2_i.i_data[0]);
 }
 
 static ssize_t mds_ext2_readpage(struct file *file, char *buf, size_t count,
@@ -87,7 +85,7 @@ struct mds_fs_operations mds_ext2_fs_ops;
 
 void mds_ext2_delete_inode(struct inode *inode)
 {
-        if (inode->u.ext2_i.i_flags & EXT2_OBJID_FL)
+        if (S_ISREG(inode->i_mode))
                 mds_ext2_set_objid(inode, NULL, 0);
 
         mds_ext2_fs_ops.cl_delete_inode(inode);
diff --git a/lustre/mds/mds_ext3.c b/lustre/mds/mds_ext3.c
index a52ae51..856bf74 100644
--- a/lustre/mds/mds_ext3.c
+++ b/lustre/mds/mds_ext3.c
@@ -100,17 +100,15 @@ static int mds_ext3_setattr(struct dentry *dentry, void *handle,
  *        dirty (it currently is used with other operations that
  *        subsequently also mark the inode dirty).
  */
-#define EXT3_OBJID_FL   0x40000000
 static int mds_ext3_set_objid(struct inode *inode, void *handle, obd_id id)
 {
-        memcpy(&EXT3_I(inode)->i_data, &id, sizeof(id));
-        EXT3_I(inode)->i_flags |= EXT3_OBJID_FL;
+        (__u64)EXT3_I(inode)->i_data[0] = cpu_to_le64(id);
         return 0;
 }
 
 static void mds_ext3_get_objid(struct inode *inode, obd_id *id)
 {
-        memcpy(id, &EXT3_I(inode)->i_data, sizeof(*id));
+        *id = le64_to_cpu(EXT3_I(inode)->i_data[0]);
 }
 
 static ssize_t mds_ext3_readpage(struct file *file, char *buf, size_t count,
@@ -146,7 +144,7 @@ void mds_ext3_delete_inode(struct inode * inode)
 {
         void *handle;
 
-        if (EXT3_I(inode)->i_flags & EXT3_OBJID_FL) {
+        if (S_ISREG(inode->i_mode)) {
                 handle = mds_ext3_start(inode, MDS_FSOP_UNLINK);
 
                 if (IS_ERR(handle)) {
-- 
1.8.3.1