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 4.9-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:
target-fileio-fix-zero-length-read-and-write-handling.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 59ac9c078141b8fd0186c0b18660a1b2c24e724e Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Date: Thu, 4 May 2017 15:50:47 -0700
Subject: target/fileio: Fix zero-length READ and WRITE handling
From: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
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 <pbonzini@xxxxxxxxxx>
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().
Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Cc: Andy Grover <agrover@xxxxxxxxxx>
Cc: David Disseldorp <ddiss@xxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/target/target_core_file.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -594,8 +594,7 @@ 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 bart.vanassche@xxxxxxxxxxx are
queue-4.9/target-fileio-fix-zero-length-read-and-write-handling.patch