This is a note to let you know that I've just added the patch titled ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path to the 4.9-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: ufs_getfrag_block-we-only-grab-truncate_mutex-on-block-creation-path.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 006351ac8ead0d4a67dd3845e3ceffe650a23212 Mon Sep 17 00:00:00 2001 From: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Date: Thu, 8 Jun 2017 23:28:53 -0400 Subject: ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path From: Al Viro <viro@xxxxxxxxxxxxxxxxxx> commit 006351ac8ead0d4a67dd3845e3ceffe650a23212 upstream. Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/ufs/inode.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -403,7 +403,9 @@ static int ufs_getfrag_block(struct inod if (!create) { phys64 = ufs_frag_map(inode, offsets, depth); - goto out; + if (phys64) + map_bh(bh_result, sb, phys64 + frag); + return 0; } /* This code entered only while writing ....? */ Patches currently in stable-queue which might be from viro@xxxxxxxxxxxxxxxxxx are queue-4.9/ufs-set-correct-s_maxsize.patch queue-4.9/ufs_getfrag_block-we-only-grab-truncate_mutex-on-block-creation-path.patch queue-4.9/ufs-restore-proper-tail-allocation.patch queue-4.9/ufs_extend_tail-fix-the-braino-in-calling-conventions-of-ufs_new_fragments.patch queue-4.9/ufs-restore-maintaining-i_blocks.patch queue-4.9/fix-ufs_isblockset.patch