svcrpc: make svc_age_temp_xprts enqueue under sv_lock

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svc_age_temp_xprts expires xprts in a two-step process: first it takes
the sv_lock and moves the xprts to expire off their server-wide list
(sv_tempsocks or sv_permsocks) to a local list.  Then it drops the
sv_lock and enqueues and puts each one.

I see no reason for this: svc_xprt_enqueue() will take sp_lock, but the
sv_lock and sp_lock are not otherwise nested anywhere (and documentation
at the top of this file claims it's correct to nest these with sp_lock
inside.)

Cc: stable@kernel.org
Tested-by: Jason Tibbitts <tibbs@math.uh.edu>
Tested-by: Paweł Sikora <pawel.sikora@agmk.net>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

...

This commit is contained in:

J. Bruce Fields 2013-02-10 11:33:48 -05:00

parent f25cc71e63

commit e75bafbff2

1 changed files with 2 additions and 13 deletions

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15

net/sunrpc/svc_xprt.c

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