Patch "target/fileio: Fix zero-length READ and WRITE handling" has been added to the 4.11-stable tree

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

target/fileio: Fix zero-length READ and WRITE handling

to the 4.11-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:
target-fileio-fix-zero-length-read-and-write-handling.patch
and it can be found in the queue-4.11 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Bart Van Assche <[email protected]>
Date: Thu, 4 May 2017 15:50:47 -0700
Subject: target/fileio: Fix zero-length READ and WRITE handling

From: Bart Van Assche <[email protected]>

commit 59ac9c078141b8fd0186c0b18660a1b2c24e724e upstream.

This patch fixes zero-length READ and WRITE handling in target/FILEIO, which was broken a long time back by:

Since:

commit d81cb44726f050d7cf1be4afd9cb45d153b52066
Author: Paolo Bonzini <[email protected]>
Date: Mon Sep 17 16:36:11 2012 -0700

target: go through normal processing for all zero-length commands

which moved zero-length READ and WRITE completion out of target-core, to doing submission into backend driver code.

To address this, go ahead and invoke target_complete_cmd() for any non negative return value in fd_do_rw().

---
 drivers/target/target_core_file.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

@@ -595,8 +595,7 @@ fd_execute_rw(struct se_cmd *cmd, struct
 	if (ret < 0)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
-	if (ret)
-		target_complete_cmd(cmd, SAM_STAT_GOOD);
+	target_complete_cmd(cmd, SAM_STAT_GOOD);
 	return 0;
 }
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.11/target-fileio-fix-zero-length-read-and-write-handling.patch