Patch "Btrfs: fix number of transaction units required to create symlink" has been added to the 4.4-stable tree

Patch "Btrfs: fix number of transaction units required to create symlink" 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: fix number of transaction units required to create symlink

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-fix-number-of-transaction-units-required-to-create-symlink.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 9269d12b2d57d9e3d13036bb750762d1110d425c Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Thu, 31 Dec 2015 18:16:29 +0000
Subject: Btrfs: fix number of transaction units required to create symlink

From: Filipe Manana <fdmanana@suse.com>

commit 9269d12b2d57d9e3d13036bb750762d1110d425c upstream.

We weren't accounting for the insertion of an inline extent item for the
symlink inode nor that we need to update the parent inode item (through
the call to btrfs_add_nondir()). So fix this by including two more
transaction units.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/inode.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -9663,9 +9663,11 @@ static int btrfs_symlink(struct inode *d
 	/*
 	 * 2 items for inode item and ref
 	 * 2 items for dir items
+	 * 1 item for updating parent inode item
+	 * 1 item for the inline extent item
 	 * 1 item for xattr if selinux is on
 	 */
-	trans = btrfs_start_transaction(root, 5);
+	trans = btrfs_start_transaction(root, 7);
 	if (IS_ERR(trans))
 		return PTR_ERR(trans);
 


Patches currently in stable-queue which might be from fdmanana@suse.com are

queue-4.4/btrfs-fix-transaction-handle-leak-on-failure-to-create-hard-link.patch
queue-4.4/btrfs-fix-number-of-transaction-units-required-to-create-symlink.patch
queue-4.4/btrfs-send-don-t-bug_on-when-an-empty-symlink-is-found.patch