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 <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 @@ -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 bart.vanassche@xxxxxxxxxxx are queue-4.11/target-fileio-fix-zero-length-read-and-write-handling.patch