Patch "Btrfs: don't use src fd for printk" has been added to the 4.4-stable tree

Patch "Btrfs: don't use src fd for printk" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    Btrfs: don't use src fd for printk

to the 4.4-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-don-t-use-src-fd-for-printk.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From c79b4713304f812d3d6c95826fc3e5fc2c0b0c14 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fb.com>
Date: Fri, 25 Mar 2016 10:02:41 -0400
Subject: Btrfs: don't use src fd for printk

From: Josef Bacik <jbacik@fb.com>

commit c79b4713304f812d3d6c95826fc3e5fc2c0b0c14 upstream.

The fd we pass in may not be on a btrfs file system, so don't try to do
BTRFS_I() on it.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/ioctl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1648,7 +1648,7 @@ static noinline int btrfs_ioctl_snap_cre
 
 		src_inode = file_inode(src.file);
 		if (src_inode->i_sb != file_inode(file)->i_sb) {
-			btrfs_info(BTRFS_I(src_inode)->root->fs_info,
+			btrfs_info(BTRFS_I(file_inode(file))->root->fs_info,
 				   "Snapshot src from another FS");
 			ret = -EXDEV;
 		} else if (!inode_owner_or_capable(src_inode)) {


Patches currently in stable-queue which might be from jbacik@fb.com are

queue-4.4/btrfs-don-t-use-src-fd-for-printk.patch