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authorTejun Heo <tj@kernel.org>2010-10-11 15:12:27 +0200
committerTejun Heo <tj@kernel.org>2010-10-11 15:20:26 +0200
commit6370a6ad3b53df90b4700977f7718118a2cd524a (patch)
tree2d1f45a19e66329813ce133b18f920d8c450b0c0 /fs
parent30310045dd20a286cf3800f063f79b468e132fb1 (diff)
workqueue: add and use WQ_MEM_RECLAIM flag
Add WQ_MEM_RECLAIM flag which currently maps to WQ_RESCUER, mark WQ_RESCUER as internal and replace all external WQ_RESCUER usages to WQ_MEM_RECLAIM. This makes the API users express the intent of the workqueue instead of indicating the internal mechanism used to guarantee forward progress. This is also to make it cleaner to add more semantics to WQ_MEM_RECLAIM. For example, if deemed necessary, memory reclaim workqueues can be made highpri. This patch doesn't introduce any functional change. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/gfs2/main.c2
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index b1e9630eb46..1c5f46075d5 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -140,7 +140,7 @@ static int __init init_gfs2_fs(void)
error = -ENOMEM;
gfs_recovery_wq = alloc_workqueue("gfs_recovery",
- WQ_NON_REENTRANT | WQ_RESCUER, 0);
+ WQ_NON_REENTRANT | WQ_MEM_RECLAIM, 0);
if (!gfs_recovery_wq)
goto fail_wq;
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 286e36e21da..6838aefca71 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1933,7 +1933,7 @@ xfs_buf_init(void)
goto out;
xfslogd_workqueue = alloc_workqueue("xfslogd",
- WQ_RESCUER | WQ_HIGHPRI, 1);
+ WQ_MEM_RECLAIM | WQ_HIGHPRI, 1);
if (!xfslogd_workqueue)
goto out_free_buf_zone;