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| author | Trond Myklebust | 2008-02-20 02:04:20 +0100 |
|---|---|---|
| committer | Trond Myklebust | 2008-02-26 06:40:33 +0100 |
| commit | 383ba71938519959be8e0b598ec658f0c211ff45 (patch) | |
| tree | 01eb0155676fe69d40f01dc137ea3be952d88997 /net/sunrpc/sched.c | |
| parent | NFS: Fix an f_mode/f_flags confusion in fs/nfs/write.c (diff) | |
| download | kernel-qcow2-linux-383ba71938519959be8e0b598ec658f0c211ff45.tar.gz kernel-qcow2-linux-383ba71938519959be8e0b598ec658f0c211ff45.tar.xz kernel-qcow2-linux-383ba71938519959be8e0b598ec658f0c211ff45.zip | |
NFS: Fix a deadlock with lazy umount
We can't allow rpc callback functions like task->tk_ops->rpc_call_prepare()
and task->tk_ops->rpc_call_done() to call mntput() in any way, since
that will cause a deadlock when the call to rpc_shutdown_client() attempts
to wait on 'task' to complete.
We can avoid the above deadlock by moving calls to mntput to
task->tk_ops->rpc_release() callback, since at that time the task will be
marked as completed, and so rpc_shutdown_client won't attempt to wait on
it.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/sched.c')
0 files changed, 0 insertions, 0 deletions