[RFC 3/28] Pass struct file down to remove_suid and children

[Tony Jones]

Pass struct file down to remove_suid and children

Pass struct path to remove_suid and should_remove_suid instead of
only the dentry. Required by a later patch that adds a struct
vfsmount parameter to notify_change().

Signed-off-by: Tony Jones <tonyj@xxxxxxx>
Signed-off-by: Andreas Gruenbacher <agruen@xxxxxxx>

Index: linux-2.6/mm/filemap.c
===================================================================
--- linux-2.6.orig/mm/filemap.c
+++ linux-2.6/mm/filemap.c
@@ -1869,9 +1869,9 @@ repeat:
  *	if suid or (sgid and xgrp)
  *		remove privs
  */
-int should_remove_suid(struct dentry *dentry)
+int should_remove_suid(struct path *path)
 {
-	mode_t mode = dentry->d_inode->i_mode;
+	mode_t mode = path->dentry->d_inode->i_mode;
 	int kill = 0;
 
 	/* suid always must be killed */
@@ -1892,20 +1892,20 @@ int should_remove_suid(struct dentry *de
 }
 EXPORT_SYMBOL(should_remove_suid);
 
-int __remove_suid(struct dentry *dentry, int kill)
+int __remove_suid(struct path *path, int kill)
 {
 	struct iattr newattrs;
 
 	newattrs.ia_valid = ATTR_FORCE | kill;
-	return notify_change(dentry, &newattrs);
+	return notify_change(path->dentry, &newattrs);
 }
 
-int remove_suid(struct dentry *dentry)
+int remove_suid(struct path *path)
 {
-	int kill = should_remove_suid(dentry);
+	int kill = should_remove_suid(path);
 
 	if (unlikely(kill))
-		return __remove_suid(dentry, kill);
+		return __remove_suid(path, kill);
 
 	return 0;
 }
@@ -2266,7 +2266,7 @@ __generic_file_aio_write_nolock(struct k
 	if (count == 0)
 		goto out;
 
-	err = remove_suid(file->f_path.dentry);
+	err = remove_suid(&file->f_path);
 	if (err)
 		goto out;
 
Index: linux-2.6/fs/ntfs/file.c
===================================================================
--- linux-2.6.orig/fs/ntfs/file.c
+++ linux-2.6/fs/ntfs/file.c
@@ -2162,7 +2162,7 @@ static ssize_t ntfs_file_aio_write_noloc
 		goto out;
 	if (!count)
 		goto out;
-	err = remove_suid(file->f_path.dentry);
+	err = remove_suid(&file->f_path);
 	if (err)
 		goto out;
 	file_update_time(file);
Index: linux-2.6/fs/reiserfs/file.c
===================================================================
--- linux-2.6.orig/fs/reiserfs/file.c
+++ linux-2.6/fs/reiserfs/file.c
@@ -1353,7 +1353,7 @@ static ssize_t reiserfs_file_write(struc
 	if (count == 0)
 		goto out;
 
-	res = remove_suid(file->f_path.dentry);
+	res = remove_suid(&file->f_path);
 	if (res)
 		goto out;
 
Index: linux-2.6/fs/splice.c
===================================================================
--- linux-2.6.orig/fs/splice.c
+++ linux-2.6/fs/splice.c
@@ -844,7 +844,7 @@ generic_file_splice_write_nolock(struct 
 	ssize_t ret;
 	int err;
 
-	err = remove_suid(out->f_path.dentry);
+	err = remove_suid(&out->f_path);
 	if (unlikely(err))
 		return err;
 
@@ -890,10 +890,10 @@ generic_file_splice_write(struct pipe_in
 	ssize_t ret;
 	int err;
 
-	err = should_remove_suid(out->f_path.dentry);
+	err = should_remove_suid(&out->f_path);
 	if (unlikely(err)) {
 		mutex_lock(&inode->i_mutex);
-		err = __remove_suid(out->f_path.dentry, err);
+		err = __remove_suid(&out->f_path, err);
 		mutex_unlock(&inode->i_mutex);
 		if (err)
 			return err;
Index: linux-2.6/fs/xfs/linux-2.6/xfs_lrw.c
===================================================================
--- linux-2.6.orig/fs/xfs/linux-2.6/xfs_lrw.c
+++ linux-2.6/fs/xfs/linux-2.6/xfs_lrw.c
@@ -805,7 +805,7 @@ start:
 	     !capable(CAP_FSETID)) {
 		error = xfs_write_clear_setuid(xip);
 		if (likely(!error))
-			error = -remove_suid(file->f_path.dentry);
+			error = -remove_suid(&file->f_path);
 		if (unlikely(error)) {
 			xfs_iunlock(xip, iolock);
 			goto out_unlock_mutex;
Index: linux-2.6/include/linux/fs.h
===================================================================
--- linux-2.6.orig/include/linux/fs.h
+++ linux-2.6/include/linux/fs.h
@@ -1678,9 +1678,9 @@ extern void __iget(struct inode * inode)
 extern void clear_inode(struct inode *);
 extern void destroy_inode(struct inode *);
 extern struct inode *new_inode(struct super_block *);
-extern int __remove_suid(struct dentry *, int);
-extern int should_remove_suid(struct dentry *);
-extern int remove_suid(struct dentry *);
+extern int __remove_suid(struct path *, int);
+extern int should_remove_suid(struct path *);
+extern int remove_suid(struct path *);
 extern void remove_dquot_ref(struct super_block *, int, struct list_head *);
 
 extern void __insert_inode_hash(struct inode *, unsigned long hashval);
Index: linux-2.6/mm/filemap_xip.c
===================================================================
--- linux-2.6.orig/mm/filemap_xip.c
+++ linux-2.6/mm/filemap_xip.c
@@ -379,7 +379,7 @@ xip_file_write(struct file *filp, const 
 	if (count == 0)
 		goto out_backing;
 
-	ret = remove_suid(filp->f_path.dentry);
+	ret = remove_suid(&filp->f_path);
 	if (ret)
 		goto out_backing;
 
Index: linux-2.6/mm/shmem.c
===================================================================
--- linux-2.6.orig/mm/shmem.c
+++ linux-2.6/mm/shmem.c
@@ -1447,7 +1447,7 @@ shmem_file_write(struct file *file, cons
 	if (err || !count)
 		goto out;
 
-	err = remove_suid(file->f_path.dentry);
+	err = remove_suid(&file->f_path);
 	if (err)
 		goto out;
 
Index: linux-2.6/fs/ocfs2/file.c
===================================================================
--- linux-2.6.orig/fs/ocfs2/file.c
+++ linux-2.6/fs/ocfs2/file.c
@@ -1035,13 +1035,13 @@ out:
 	return ret;
 }
 
-static int ocfs2_prepare_inode_for_write(struct dentry *dentry,
+static int ocfs2_prepare_inode_for_write(struct path *path,
 					 loff_t *ppos,
 					 size_t count,
 					 int appending)
 {
 	int ret = 0, meta_level = appending;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = path->dentry->d_inode;
 	u32 clusters;
 	loff_t newsize, saved_pos;
 
@@ -1067,7 +1067,7 @@ static int ocfs2_prepare_inode_for_write
 		 * inode. There's also the dinode i_size state which
 		 * can be lost via setattr during extending writes (we
 		 * set inode->i_size at the end of a write. */
-		if (should_remove_suid(dentry)) {
+		if (should_remove_suid(path)) {
 			if (meta_level == 0) {
 				ocfs2_meta_unlock(inode, meta_level);
 				meta_level = 1;
@@ -1176,7 +1176,7 @@ static ssize_t ocfs2_file_aio_write(stru
 		goto out;
 	}
 
-	ret = ocfs2_prepare_inode_for_write(filp->f_path.dentry, &iocb->ki_pos,
+	ret = ocfs2_prepare_inode_for_write(&filp->f_path, &iocb->ki_pos,
 					    iocb->ki_left, appending);
 	if (ret < 0) {
 		mlog_errno(ret);
@@ -1239,7 +1239,7 @@ static ssize_t ocfs2_file_splice_write(s
 		goto out;
 	}
 
-	ret = ocfs2_prepare_inode_for_write(out->f_path.dentry, ppos, len, 0);
+	ret = ocfs2_prepare_inode_for_write(&out->f_path, ppos, len, 0);
 	if (ret < 0) {
 		mlog_errno(ret);
 		goto out_unlock;
-
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