[AppArmor 29/41] Add a struct vfsmount parameter to vfs_removexattr()

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The vfsmount will be passed down to the LSM hook so that LSMs can compute
pathnames.

Signed-off-by: Tony Jones <[email protected]>
Signed-off-by: Andreas Gruenbacher <[email protected]>
Signed-off-by: John Johansen <[email protected]>

---
 fs/nfsd/vfs.c         |    3 ++-
 fs/xattr.c            |   12 ++++++------
 include/linux/xattr.h |    2 +-
 3 files changed, 9 insertions(+), 8 deletions(-)

--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1992,7 +1992,8 @@ nfsd_set_posix_acl(struct svc_fh *fhp, i
 		if (!S_ISDIR(inode->i_mode) && type == ACL_TYPE_DEFAULT)
 			error = 0;
 		else {
-			error = vfs_removexattr(fhp->fh_dentry, name);
+			error = vfs_removexattr(fhp->fh_dentry,
+						fhp->fh_export->ex_mnt, name);
 			if (error == -ENODATA)
 				error = 0;
 		}
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -166,7 +166,7 @@ vfs_listxattr(struct dentry *dentry, str
 EXPORT_SYMBOL_GPL(vfs_listxattr);
 
 int
-vfs_removexattr(struct dentry *dentry, char *name)
+vfs_removexattr(struct dentry *dentry, struct vfsmount *mnt, char *name)
 {
 	struct inode *inode = dentry->d_inode;
 	int error;
@@ -437,7 +437,7 @@ sys_flistxattr(int fd, char __user *list
  * Extended attribute REMOVE operations
  */
 static long
-removexattr(struct dentry *d, char __user *name)
+removexattr(struct dentry *dentry, struct vfsmount *mnt, char __user *name)
 {
 	int error;
 	char kname[XATTR_NAME_MAX + 1];
@@ -448,7 +448,7 @@ removexattr(struct dentry *d, char __use
 	if (error < 0)
 		return error;
 
-	return vfs_removexattr(d, kname);
+	return vfs_removexattr(dentry, mnt, kname);
 }
 
 asmlinkage long
@@ -460,7 +460,7 @@ sys_removexattr(char __user *path, char 
 	error = user_path_walk(path, &nd);
 	if (error)
 		return error;
-	error = removexattr(nd.dentry, name);
+	error = removexattr(nd.dentry, nd.mnt, name);
 	path_release(&nd);
 	return error;
 }
@@ -474,7 +474,7 @@ sys_lremovexattr(char __user *path, char
 	error = user_path_walk_link(path, &nd);
 	if (error)
 		return error;
-	error = removexattr(nd.dentry, name);
+	error = removexattr(nd.dentry, nd.mnt, name);
 	path_release(&nd);
 	return error;
 }
@@ -491,7 +491,7 @@ sys_fremovexattr(int fd, char __user *na
 		return error;
 	dentry = f->f_path.dentry;
 	audit_inode(NULL, dentry->d_inode);
-	error = removexattr(dentry, name);
+	error = removexattr(dentry, f->f_path.mnt, name);
 	fput(f);
 	return error;
 }
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -52,7 +52,7 @@ ssize_t vfs_listxattr(struct dentry *d, 
 		      size_t size);
 int vfs_setxattr(struct dentry *, struct vfsmount *, char *, void *, size_t,
 		 int);
-int vfs_removexattr(struct dentry *, char *);
+int vfs_removexattr(struct dentry *, struct vfsmount *, char *);
 
 ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size);
 ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size);

-- 
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