[PATCH-v2 0/3] percpu_ida+Co: Make percpu_ida_alloc accept task state bitmask

From: Nicholas A. Bellinger
Date: Sun Jan 19 2014 - 23:05:46 EST

From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>

Hi Linus,

Here is the -v2 series for converting percpu_ida_alloc() + consumer
usage to accept the task state bitmask parameter, w/o the extra
legacy gfp_t wrapper.

As requested, the first patch contains only the parameter change
to percpu_ida_alloc() + existing consumers, and makes no semantic
or behavior change. This patch is CC'ed for stable, and will need
some light massaging to apply back to v3.12.y.

The second patch is a blk-mq cleanup to propigate the task state
bitmask usage up to the blk-mq vs. legacy split in blk_get_request().

The last patch fixes the original iscsi-target session reset bug
by passing TASK_INTERRUPTIBLE, and adds the signal_pending_state()
bit required in percpu_ida_alloc() code. This is also CC'ed for

CC'ing Ingo + Peter for TASK_RUNNING + prepare_to_wait() bit.

Thank you,


Kent Overstreet (1):
percpu_ida: Make percpu_ida_alloc + callers accept task state bitmask

Nicholas Bellinger (2):
blk-mq: Convert gfp_t parameters to task state bitmask
iscsi-target: Fix connection reset hang with percpu_ida_alloc

block/blk-core.c | 4 +++-
block/blk-flush.c | 2 +-
block/blk-mq-tag.c | 14 +++++++-------
block/blk-mq-tag.h | 2 +-
block/blk-mq.c | 28 ++++++++++++++--------------
drivers/target/iscsi/iscsi_target_util.c | 8 ++++++--
drivers/target/tcm_fc/tfc_cmd.c | 2 +-
drivers/vhost/scsi.c | 2 +-
include/linux/blk-mq.h | 4 ++--
include/linux/percpu_ida.h | 3 ++-
lib/percpu_ida.c | 17 +++++++++++------
11 files changed, 49 insertions(+), 37 deletions(-)


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