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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-04 15:54:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-04 21:01:26 -0300
commit92a45fe9de21c64b57792d3c04d7637f95d6d6d0 (patch)
tree902eb5de12e835e190092be3474c5bc3807b8852 /kernels/linux-libre-xen/0001-block-loop-convert-to-per-device-workqueue.patch
parent082735e450fd39e62a07d1e5e954673fbe7bf8ea (diff)
linux-libre-{pae,xen}-4.1.4_gnu-1: updating version
* update Maintainer and Contributor tags * drop pkgbase comments * enable CONFIG_CROS_EC_CHARDEV and CONFIG_CROS_EC_LPC (FS#45688 -> https://bugs.archlinux.org/task/45688)
Diffstat (limited to 'kernels/linux-libre-xen/0001-block-loop-convert-to-per-device-workqueue.patch')
-rw-r--r--kernels/linux-libre-xen/0001-block-loop-convert-to-per-device-workqueue.patch133
1 files changed, 0 insertions, 133 deletions
diff --git a/kernels/linux-libre-xen/0001-block-loop-convert-to-per-device-workqueue.patch b/kernels/linux-libre-xen/0001-block-loop-convert-to-per-device-workqueue.patch
deleted file mode 100644
index effd4faaf..000000000
--- a/kernels/linux-libre-xen/0001-block-loop-convert-to-per-device-workqueue.patch
+++ /dev/null
@@ -1,133 +0,0 @@
-From ebff6d5c91195d37e33b7bbfb36c6cc0119aa06f Mon Sep 17 00:00:00 2001
-From: Ming Lei <ming.lei@canonical.com>
-Date: Tue, 5 May 2015 19:49:54 +0800
-Subject: [PATCH 1/2] block: loop: convert to per-device workqueue
-
-Documentation/workqueue.txt:
- If there is dependency among multiple work items used
- during memory reclaim, they should be queued to separate
- wq each with WQ_MEM_RECLAIM.
-
-Loop devices can be stacked, so we have to convert to per-device
-workqueue. One example is Fedora live CD.
-
-Fixes: b5dd2f6047ca108001328aac0e8588edd15f1778
-Cc: stable@vger.kernel.org (v4.0)
-Cc: Justin M. Forbes <jforbes@fedoraproject.org>
-Signed-off-by: Ming Lei <ming.lei@canonical.com>
-Acked-by: Tejun Heo <tj@kernel.org>
-Signed-off-by: Jens Axboe <axboe@fb.com>
----
- drivers/block/loop.c | 30 ++++++++++++++----------------
- drivers/block/loop.h | 1 +
- 2 files changed, 15 insertions(+), 16 deletions(-)
-
-diff --git a/drivers/block/loop.c b/drivers/block/loop.c
-index d7173cb..9786aa3 100644
---- a/drivers/block/loop.c
-+++ b/drivers/block/loop.c
-@@ -86,8 +86,6 @@ static DEFINE_MUTEX(loop_index_mutex);
- static int max_part;
- static int part_shift;
-
--static struct workqueue_struct *loop_wq;
--
- static int transfer_xor(struct loop_device *lo, int cmd,
- struct page *raw_page, unsigned raw_off,
- struct page *loop_page, unsigned loop_off,
-@@ -725,6 +723,12 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
- size = get_loop_size(lo, file);
- if ((loff_t)(sector_t)size != size)
- goto out_putf;
-+ error = -ENOMEM;
-+ lo->wq = alloc_workqueue("kloopd%d",
-+ WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_UNBOUND, 0,
-+ lo->lo_number);
-+ if (!lo->wq)
-+ goto out_putf;
-
- error = 0;
-
-@@ -872,6 +876,8 @@ static int loop_clr_fd(struct loop_device *lo)
- lo->lo_flags = 0;
- if (!part_shift)
- lo->lo_disk->flags |= GENHD_FL_NO_PART_SCAN;
-+ destroy_workqueue(lo->wq);
-+ lo->wq = NULL;
- mutex_unlock(&lo->lo_ctl_mutex);
- /*
- * Need not hold lo_ctl_mutex to fput backing file.
-@@ -1425,9 +1431,13 @@ static int loop_queue_rq(struct blk_mq_hw_ctx *hctx,
- const struct blk_mq_queue_data *bd)
- {
- struct loop_cmd *cmd = blk_mq_rq_to_pdu(bd->rq);
-+ struct loop_device *lo = cmd->rq->q->queuedata;
-
- blk_mq_start_request(bd->rq);
-
-+ if (lo->lo_state != Lo_bound)
-+ return -EIO;
-+
- if (cmd->rq->cmd_flags & REQ_WRITE) {
- struct loop_device *lo = cmd->rq->q->queuedata;
- bool need_sched = true;
-@@ -1441,9 +1451,9 @@ static int loop_queue_rq(struct blk_mq_hw_ctx *hctx,
- spin_unlock_irq(&lo->lo_lock);
-
- if (need_sched)
-- queue_work(loop_wq, &lo->write_work);
-+ queue_work(lo->wq, &lo->write_work);
- } else {
-- queue_work(loop_wq, &cmd->read_work);
-+ queue_work(lo->wq, &cmd->read_work);
- }
-
- return BLK_MQ_RQ_QUEUE_OK;
-@@ -1455,9 +1465,6 @@ static void loop_handle_cmd(struct loop_cmd *cmd)
- struct loop_device *lo = cmd->rq->q->queuedata;
- int ret = -EIO;
-
-- if (lo->lo_state != Lo_bound)
-- goto failed;
--
- if (write && (lo->lo_flags & LO_FLAGS_READ_ONLY))
- goto failed;
-
-@@ -1806,13 +1813,6 @@ static int __init loop_init(void)
- goto misc_out;
- }
-
-- loop_wq = alloc_workqueue("kloopd",
-- WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_UNBOUND, 0);
-- if (!loop_wq) {
-- err = -ENOMEM;
-- goto misc_out;
-- }
--
- blk_register_region(MKDEV(LOOP_MAJOR, 0), range,
- THIS_MODULE, loop_probe, NULL, NULL);
-
-@@ -1850,8 +1850,6 @@ static void __exit loop_exit(void)
- blk_unregister_region(MKDEV(LOOP_MAJOR, 0), range);
- unregister_blkdev(LOOP_MAJOR, "loop");
-
-- destroy_workqueue(loop_wq);
--
- misc_deregister(&loop_misc);
- }
-
-diff --git a/drivers/block/loop.h b/drivers/block/loop.h
-index 301c27f..49564ed 100644
---- a/drivers/block/loop.h
-+++ b/drivers/block/loop.h
-@@ -54,6 +54,7 @@ struct loop_device {
- gfp_t old_gfp_mask;
-
- spinlock_t lo_lock;
-+ struct workqueue_struct *wq;
- struct list_head write_cmd_head;
- struct work_struct write_work;
- bool write_started;
---
-2.4.5
-