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svcrpc: svc_close_xprt comment

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Neil Brown had to explain to me why we do this here; record the answer
for posterity.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2010-10-25 20:24:48 -04:00
parent f8c0d226fe
commit b176331627
1 changed files with 6 additions and 1 deletions
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7
net/sunrpc/svc_xprt.c
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@ -931,7 +931,12 @@ void svc_close_xprt(struct svc_xprt *xprt)
if (test_and_set_bit(XPT_BUSY, &xprt->xpt_flags))
/* someone else will have to effect the close */
return;
/*
* We expect svc_close_xprt() to work even when no threads are
* running (e.g., while configuring the server before starting
* any threads), so if the transport isn't busy, we delete
* it ourself:
*/
svc_delete_xprt(xprt);
}
EXPORT_SYMBOL_GPL(svc_close_xprt);