X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fopen.c;h=75385144df7da2fe10e8158a27322ec473a96d37;hb=6bc9feff14a2524c4bb2bac533dfd874b1533e20;hp=e27c205364d3efba824538b63a906334688ae56e;hpb=1e66239e23dd0422baf891bf6af0b65ac632b676;p=linux-2.6

diff --git a/fs/open.c b/fs/open.c
index e27c205364..75385144df 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -256,24 +256,26 @@ static long do_sys_truncate(const char __user * path, loff_t length)
 	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
 		goto dput_and_out;
 
-	/*
-	 * Make sure that there are no leases.
-	 */
-	error = break_lease(inode, FMODE_WRITE);
+	error = get_write_access(inode);
 	if (error)
 		goto dput_and_out;
 
-	error = get_write_access(inode);
+	/*
+	 * Make sure that there are no leases.  get_write_access() protects
+	 * against the truncate racing with a lease-granting setlease().
+	 */
+	error = break_lease(inode, FMODE_WRITE);
 	if (error)
-		goto dput_and_out;
+		goto put_write_and_out;
 
 	error = locks_verify_truncate(inode, NULL, length);
 	if (!error) {
 		DQUOT_INIT(inode);
 		error = do_truncate(nd.dentry, length, 0, NULL);
 	}
-	put_write_access(inode);
 
+put_write_and_out:
+	put_write_access(inode);
 dput_and_out:
 	path_release(&nd);
 out:
@@ -656,7 +658,8 @@ static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
 		newattrs.ia_gid = group;
 	}
 	if (!S_ISDIR(inode->i_mode))
-		newattrs.ia_valid |= ATTR_KILL_SUID|ATTR_KILL_SGID;
+		newattrs.ia_valid |=
+			ATTR_KILL_SUID | ATTR_KILL_SGID | ATTR_KILL_PRIV;
 	mutex_lock(&inode->i_mutex);
 	error = notify_change(dentry, &newattrs);
 	mutex_unlock(&inode->i_mutex);
@@ -755,6 +758,10 @@ static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
 	f->f_op = fops_get(inode->i_fop);
 	file_move(f, &inode->i_sb->s_files);
 
+	error = security_dentry_open(f);
+	if (error)
+		goto cleanup_all;
+
 	if (!open && f->f_op)
 		open = f->f_op->open;
 	if (open) {
@@ -1171,7 +1178,7 @@ asmlinkage long sys_vhangup(void)
 int generic_file_open(struct inode * inode, struct file * filp)
 {
 	if (!(filp->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS)
-		return -EFBIG;
+		return -EOVERFLOW;
 	return 0;
 }