Patch "NFS: Add a cond_resched() to nfs_commit_release_pages()" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

NFS: Add a cond_resched() to nfs_commit_release_pages()

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
nfs-add-a-cond_resched-to-nfs_commit_release_pages.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Trond Myklebust <[email protected]>
Date: Mon, 18 Dec 2017 14:39:13 -0500
Subject: NFS: Add a cond_resched() to nfs_commit_release_pages()

From: Trond Myklebust <[email protected]>

commit 7f1bda447c9bd48b415acedba6b830f61591601f upstream.

The commit list can get very large, and so we need a cond_resched() in nfs_commit_release_pages() in order to ensure we don't hog the CPU for excessive periods of time.

---
 fs/nfs/write.c |    2 ++
 1 file changed, 2 insertions(+)

@@ -1746,6 +1746,8 @@ static void nfs_commit_release_pages(str
 		set_bit(NFS_CONTEXT_RESEND_WRITES, &req->wb_context->flags);
 	next:
 		nfs_unlock_and_release_request(req);
+		/* Latency breaker */
+		cond_resched();
 	}
 	nfss = NFS_SERVER(data->inode);
 	if (atomic_long_read(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/nfs-pnfs-fix-nfs_direct_req-ref-leak-when-i-o-falls-back-to-the-mds.patch queue-4.4/nfs-add-a-cond_resched-to-nfs_commit_release_pages.patch queue-4.4/nfs-commit-direct-writes-even-if-they-fail-partially.patch