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author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-02-19 20:04:20 -0500 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-02-25 21:40:33 -0800 |
commit | 383ba71938519959be8e0b598ec658f0c211ff45 (patch) | |
tree | 01eb0155676fe69d40f01dc137ea3be952d88997 /net | |
parent | 4b5621f6b127bce9218998c187bd25bf7f9fc371 (diff) | |
download | kernel_samsung_tuna-383ba71938519959be8e0b598ec658f0c211ff45.zip kernel_samsung_tuna-383ba71938519959be8e0b598ec658f0c211ff45.tar.gz kernel_samsung_tuna-383ba71938519959be8e0b598ec658f0c211ff45.tar.bz2 |
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')
0 files changed, 0 insertions, 0 deletions