Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d1840343 authored by Trond Myklebust's avatar Trond Myklebust Committed by Greg Kroah-Hartman
Browse files

NFS: Add a cond_resched() to nfs_commit_release_pages() 



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.

Reported-by: default avatarMike Galbraith <efault@gmx.de>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e1df8c68

fs/nfs/write.c

+2 −0
Original line number Diff line number Diff line
@@ -1806,6 +1806,8 @@ static void nfs_commit_release_pages(struct nfs_commit_data *data) 
		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)