linux-kernel - [PATCH 27/32] reiserfs: make commit_wq use the default concurrency level

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Message-Id: <1294062595-30097-28-git-send-email-tj@kernel.org>
Date:	Mon,  3 Jan 2011 14:49:50 +0100
From:	Tejun Heo <tj@...nel.org>
To:	linux-kernel@...r.kernel.org
Cc:	Tejun Heo <tj@...nel.org>, reiserfs-devel@...r.kernel.org
Subject: [PATCH 27/32] reiserfs: make commit_wq use the default concurrency level

The maximum number of concurrent work items queued on commit_wq is
bound by the number of active journals.  Convert to alloc_workqueue()
and use the default concurrency level so that they can be processed in
parallel.

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: reiserfs-devel@...r.kernel.org
---
Only compile tested.  Please feel free to take it into the subsystem
tree or simply ack - I'll route it through the wq tree.

Thanks.

 fs/reiserfs/journal.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index d31bce1..ee311c0 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -2883,7 +2883,7 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
 	reiserfs_mounted_fs_count++;
 	if (reiserfs_mounted_fs_count <= 1) {
 		reiserfs_write_unlock(sb);
-		commit_wq = create_workqueue("reiserfs");
+		commit_wq = alloc_workqueue("reiserfs", WQ_MEM_RECLAIM, 0);
 		reiserfs_write_lock(sb);
 	}
 
-- 
1.7.1

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