coredump: accept any write method

[ Upstream commit 86cc05840a0da1afcb6b8151b53f3b606457c91b ]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

diff --git a/fs/coredump.c b/fs/coredump.c
index b5c86ffd5033420523934c7153080d8cdc605bea..4c5866b948e771ba4bc7cb13cda7100e661934e2 100644 (file)
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -657,7 +657,7 @@ void do_coredump(const siginfo_t *siginfo)
                 */
                if (!uid_eq(inode->i_uid, current_fsuid()))
                        goto close_fail;
-               if (!cprm.file->f_op->write)
+               if (!(cprm.file->f_mode & FMODE_CAN_WRITE))
                        goto close_fail;
                if (do_truncate(cprm.file->f_path.dentry, 0, 0, cprm.file))
                        goto close_fail;