[GIT PULL] target fixes for v3.13

From: Nicholas A. Bellinger
Date: Thu Jan 16 2014 - 19:07:53 EST

Hello Linus,

Here are the outstanding target fixes for v3.13 code.

Please go ahead and pull from:

git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master

This series addresses a specific >= v3.12 regression related to the
iscsi-target percpu_ida conversion that has been reported during stress
testing over the last weeks.

The regression involves percpu_ida_alloc() going into uninterruptible
sleep while waiting for outstanding tags to be freed, thus not accepting
signals to force an return once a connection reset event has occurred.

This change allows the percpu_ida tag allocator to optionally use
interruptible sleep that iscsi-target expects, while still leaving the
functionality + interface for existing percpu_ida consumers unchanged.

Thank you,


Kent Overstreet (1):
percpu_ida: Allow tag alloc interface to interruptible sleep

Nicholas Bellinger (2):
iscsi-target: Fix connection reset hang with percpu_ida_alloc
iscsi-target: Pre-allocate more tags to avoid ack starvation

drivers/target/iscsi/iscsi_target_nego.c | 2 +-
drivers/target/iscsi/iscsi_target_util.c | 8 ++++++--
include/linux/percpu_ida.h | 10 +++++++++-
lib/percpu_ida.c | 15 ++++++++++-----
4 files changed, 26 insertions(+), 9 deletions(-)


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/