From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:51339 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754573AbbFSUcY (ORCPT ); Fri, 19 Jun 2015 16:32:24 -0400 Subject: Patch "btrfs: incorrect handling for fiemap_fill_next_extent return" has been added to the 3.10-stable tree To: csong84@gatech.edu, bo.li.liu@oracle.com, clm@fb.com, dsterba@suse.cz, gregkh@linuxfoundation.org Cc: , From: Date: Fri, 19 Jun 2015 13:32:20 -0700 Message-ID: <143474594011311@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled btrfs: incorrect handling for fiemap_fill_next_extent return to the 3.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: btrfs-incorrect-handling-for-fiemap_fill_next_extent-return.patch and it can be found in the queue-3.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 26e726afe01c1c82072cf23a5ed89ce25f39d9f2 Mon Sep 17 00:00:00 2001 From: Chengyu Song Date: Tue, 24 Mar 2015 18:12:56 -0400 Subject: btrfs: incorrect handling for fiemap_fill_next_extent return From: Chengyu Song commit 26e726afe01c1c82072cf23a5ed89ce25f39d9f2 upstream. fiemap_fill_next_extent returns 0 on success, -errno on error, 1 if this was the last extent that will fit in user array. If 1 is returned, the return value may eventually returned to user space, which should not happen, according to manpage of ioctl. Signed-off-by: Chengyu Song Reviewed-by: David Sterba Reviewed-by: Liu Bo Signed-off-by: Chris Mason Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/extent_io.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4080,8 +4080,11 @@ int extent_fiemap(struct inode *inode, s } ret = fiemap_fill_next_extent(fieinfo, em_start, disko, em_len, flags); - if (ret) + if (ret) { + if (ret == 1) + ret = 0; goto out_free; + } } out_free: free_extent_map(em); Patches currently in stable-queue which might be from csong84@gatech.edu are queue-3.10/btrfs-incorrect-handling-for-fiemap_fill_next_extent-return.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in