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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 18:20:19 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 18:20:19 +0300
commitbd2895eeade5f11f3e5906283c630bbdb4b57454 (patch)
tree4d98f4fcd80c7d062afce28823d08aee53e66f82 /net
parent016aa2ed1cc9cf704cf76d8df07751b6daa9750f (diff)
parent24d51add7438f9696a7205927bf9de3c5c787a58 (diff)
downloadlinux-bd2895eeade5f11f3e5906283c630bbdb4b57454.tar.xz
Merge branch 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
* 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: fix build failure introduced by s/freezeable/freezable/ workqueue: add system_freezeable_wq rds/ib: use system_wq instead of rds_ib_fmr_wq net/9p: replace p9_poll_task with a work net/9p: use system_wq instead of p9_mux_wq xfs: convert to alloc_workqueue() reiserfs: make commit_wq use the default concurrency level ocfs2: use system_wq instead of ocfs2_quota_wq ext4: convert to alloc_workqueue() scsi/scsi_tgt_lib: scsi_tgtd isn't used in memory reclaim path scsi/be2iscsi,qla2xxx: convert to alloc_workqueue() misc/iwmc3200top: use system_wq instead of dedicated workqueues i2o: use alloc_workqueue() instead of create_workqueue() acpi: kacpi*_wq don't need WQ_MEM_RECLAIM fs/aio: aio_wq isn't used in memory reclaim path input/tps6507x-ts: use system_wq instead of dedicated workqueue cpufreq: use system_wq instead of dedicated workqueues wireless/ipw2x00: use system_wq instead of dedicated workqueues arm/omap: use system_wq in mailbox workqueue: use WQ_MEM_RECLAIM instead of WQ_RESCUER
Diffstat (limited to 'net')
-rw-r--r--net/9p/trans_fd.c52
-rw-r--r--net/rds/ib.c9
-rw-r--r--net/rds/ib.h2
-rw-r--r--net/rds/ib_rdma.c27
-rw-r--r--net/sunrpc/sched.c2
5 files changed, 18 insertions, 74 deletions
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index 078eb162d9bf..a30471e51740 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -153,10 +153,11 @@ struct p9_conn {
unsigned long wsched;
};
+static void p9_poll_workfn(struct work_struct *work);
+
static DEFINE_SPINLOCK(p9_poll_lock);
static LIST_HEAD(p9_poll_pending_list);
-static struct workqueue_struct *p9_mux_wq;
-static struct task_struct *p9_poll_task;
+static DECLARE_WORK(p9_poll_work, p9_poll_workfn);
static void p9_mux_poll_stop(struct p9_conn *m)
{
@@ -384,7 +385,7 @@ static void p9_read_work(struct work_struct *work)
if (n & POLLIN) {
P9_DPRINTK(P9_DEBUG_TRANS, "sched read work %p\n", m);
- queue_work(p9_mux_wq, &m->rq);
+ schedule_work(&m->rq);
} else
clear_bit(Rworksched, &m->wsched);
} else
@@ -497,7 +498,7 @@ static void p9_write_work(struct work_struct *work)
if (n & POLLOUT) {
P9_DPRINTK(P9_DEBUG_TRANS, "sched write work %p\n", m);
- queue_work(p9_mux_wq, &m->wq);
+ schedule_work(&m->wq);
} else
clear_bit(Wworksched, &m->wsched);
} else
@@ -516,15 +517,14 @@ static int p9_pollwake(wait_queue_t *wait, unsigned mode, int sync, void *key)
container_of(wait, struct p9_poll_wait, wait);
struct p9_conn *m = pwait->conn;
unsigned long flags;
- DECLARE_WAITQUEUE(dummy_wait, p9_poll_task);
spin_lock_irqsave(&p9_poll_lock, flags);
if (list_empty(&m->poll_pending_link))
list_add_tail(&m->poll_pending_link, &p9_poll_pending_list);
spin_unlock_irqrestore(&p9_poll_lock, flags);
- /* perform the default wake up operation */
- return default_wake_function(&dummy_wait, mode, sync, key);
+ schedule_work(&p9_poll_work);
+ return 1;
}
/**
@@ -629,7 +629,7 @@ static void p9_poll_mux(struct p9_conn *m)
P9_DPRINTK(P9_DEBUG_TRANS, "mux %p can read\n", m);
if (!test_and_set_bit(Rworksched, &m->wsched)) {
P9_DPRINTK(P9_DEBUG_TRANS, "sched read work %p\n", m);
- queue_work(p9_mux_wq, &m->rq);
+ schedule_work(&m->rq);
}
}
@@ -639,7 +639,7 @@ static void p9_poll_mux(struct p9_conn *m)
if ((m->wsize || !list_empty(&m->unsent_req_list)) &&
!test_and_set_bit(Wworksched, &m->wsched)) {
P9_DPRINTK(P9_DEBUG_TRANS, "sched write work %p\n", m);
- queue_work(p9_mux_wq, &m->wq);
+ schedule_work(&m->wq);
}
}
}
@@ -677,7 +677,7 @@ static int p9_fd_request(struct p9_client *client, struct p9_req_t *req)
n = p9_fd_poll(m->client, NULL);
if (n & POLLOUT && !test_and_set_bit(Wworksched, &m->wsched))
- queue_work(p9_mux_wq, &m->wq);
+ schedule_work(&m->wq);
return 0;
}
@@ -1047,12 +1047,12 @@ static struct p9_trans_module p9_fd_trans = {
*
*/
-static int p9_poll_proc(void *a)
+static void p9_poll_workfn(struct work_struct *work)
{
unsigned long flags;
P9_DPRINTK(P9_DEBUG_TRANS, "start %p\n", current);
- repeat:
+
spin_lock_irqsave(&p9_poll_lock, flags);
while (!list_empty(&p9_poll_pending_list)) {
struct p9_conn *conn = list_first_entry(&p9_poll_pending_list,
@@ -1067,35 +1067,11 @@ static int p9_poll_proc(void *a)
}
spin_unlock_irqrestore(&p9_poll_lock, flags);
- set_current_state(TASK_INTERRUPTIBLE);
- if (list_empty(&p9_poll_pending_list)) {
- P9_DPRINTK(P9_DEBUG_TRANS, "sleeping...\n");
- schedule();
- }
- __set_current_state(TASK_RUNNING);
-
- if (!kthread_should_stop())
- goto repeat;
-
P9_DPRINTK(P9_DEBUG_TRANS, "finish\n");
- return 0;
}
int p9_trans_fd_init(void)
{
- p9_mux_wq = create_workqueue("v9fs");
- if (!p9_mux_wq) {
- printk(KERN_WARNING "v9fs: mux: creating workqueue failed\n");
- return -ENOMEM;
- }
-
- p9_poll_task = kthread_run(p9_poll_proc, NULL, "v9fs-poll");
- if (IS_ERR(p9_poll_task)) {
- destroy_workqueue(p9_mux_wq);
- printk(KERN_WARNING "v9fs: mux: creating poll task failed\n");
- return PTR_ERR(p9_poll_task);
- }
-
v9fs_register_trans(&p9_tcp_trans);
v9fs_register_trans(&p9_unix_trans);
v9fs_register_trans(&p9_fd_trans);
@@ -1105,10 +1081,8 @@ int p9_trans_fd_init(void)
void p9_trans_fd_exit(void)
{
- kthread_stop(p9_poll_task);
+ flush_work_sync(&p9_poll_work);
v9fs_unregister_trans(&p9_tcp_trans);
v9fs_unregister_trans(&p9_unix_trans);
v9fs_unregister_trans(&p9_fd_trans);
-
- destroy_workqueue(p9_mux_wq);
}
diff --git a/net/rds/ib.c b/net/rds/ib.c
index 4123967d4d65..cce19f95c624 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -364,7 +364,6 @@ void rds_ib_exit(void)
rds_ib_sysctl_exit();
rds_ib_recv_exit();
rds_trans_unregister(&rds_ib_transport);
- rds_ib_fmr_exit();
}
struct rds_transport rds_ib_transport = {
@@ -400,13 +399,9 @@ int rds_ib_init(void)
INIT_LIST_HEAD(&rds_ib_devices);
- ret = rds_ib_fmr_init();
- if (ret)
- goto out;
-
ret = ib_register_client(&rds_ib_client);
if (ret)
- goto out_fmr_exit;
+ goto out;
ret = rds_ib_sysctl_init();
if (ret)
@@ -430,8 +425,6 @@ out_sysctl:
rds_ib_sysctl_exit();
out_ibreg:
rds_ib_unregister_client();
-out_fmr_exit:
- rds_ib_fmr_exit();
out:
return ret;
}
diff --git a/net/rds/ib.h b/net/rds/ib.h
index e34ad032b66d..4297d92788dc 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -307,8 +307,6 @@ void *rds_ib_get_mr(struct scatterlist *sg, unsigned long nents,
void rds_ib_sync_mr(void *trans_private, int dir);
void rds_ib_free_mr(void *trans_private, int invalidate);
void rds_ib_flush_mrs(void);
-int rds_ib_fmr_init(void);
-void rds_ib_fmr_exit(void);
/* ib_recv.c */
int rds_ib_recv_init(void);
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c
index 18a833c450c8..819c35a0d9cb 100644
--- a/net/rds/ib_rdma.c
+++ b/net/rds/ib_rdma.c
@@ -38,8 +38,6 @@
#include "ib.h"
#include "xlist.h"
-static struct workqueue_struct *rds_ib_fmr_wq;
-
static DEFINE_PER_CPU(unsigned long, clean_list_grace);
#define CLEAN_LIST_BUSY_BIT 0
@@ -307,7 +305,7 @@ static struct rds_ib_mr *rds_ib_alloc_fmr(struct rds_ib_device *rds_ibdev)
int err = 0, iter = 0;
if (atomic_read(&pool->dirty_count) >= pool->max_items / 10)
- queue_delayed_work(rds_ib_fmr_wq, &pool->flush_worker, 10);
+ schedule_delayed_work(&pool->flush_worker, 10);
while (1) {
ibmr = rds_ib_reuse_fmr(pool);
@@ -696,24 +694,6 @@ out_nolock:
return ret;
}
-int rds_ib_fmr_init(void)
-{
- rds_ib_fmr_wq = create_workqueue("rds_fmr_flushd");
- if (!rds_ib_fmr_wq)
- return -ENOMEM;
- return 0;
-}
-
-/*
- * By the time this is called all the IB devices should have been torn down and
- * had their pools freed. As each pool is freed its work struct is waited on,
- * so the pool flushing work queue should be idle by the time we get here.
- */
-void rds_ib_fmr_exit(void)
-{
- destroy_workqueue(rds_ib_fmr_wq);
-}
-
static void rds_ib_mr_pool_flush_worker(struct work_struct *work)
{
struct rds_ib_mr_pool *pool = container_of(work, struct rds_ib_mr_pool, flush_worker.work);
@@ -741,7 +721,7 @@ void rds_ib_free_mr(void *trans_private, int invalidate)
/* If we've pinned too many pages, request a flush */
if (atomic_read(&pool->free_pinned) >= pool->max_free_pinned ||
atomic_read(&pool->dirty_count) >= pool->max_items / 10)
- queue_delayed_work(rds_ib_fmr_wq, &pool->flush_worker, 10);
+ schedule_delayed_work(&pool->flush_worker, 10);
if (invalidate) {
if (likely(!in_interrupt())) {
@@ -749,8 +729,7 @@ void rds_ib_free_mr(void *trans_private, int invalidate)
} else {
/* We get here if the user created a MR marked
* as use_once and invalidate at the same time. */
- queue_delayed_work(rds_ib_fmr_wq,
- &pool->flush_worker, 10);
+ schedule_delayed_work(&pool->flush_worker, 10);
}
}
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 59e599498e37..3fc8624fcd17 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -955,7 +955,7 @@ static int rpciod_start(void)
* Create the rpciod thread and wait for it to start.
*/
dprintk("RPC: creating workqueue rpciod\n");
- wq = alloc_workqueue("rpciod", WQ_RESCUER, 0);
+ wq = alloc_workqueue("rpciod", WQ_MEM_RECLAIM, 0);
rpciod_workqueue = wq;
return rpciod_workqueue != NULL;
}