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authorNeilBrown <neilb@suse.de>2006-04-10 22:55:37 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-11 06:18:52 -0700
commit5e8d5c29482dc56de5971ddc99c6e7f69e4d16f6 (patch)
treefe50096b5742960ff6bcccbb053c1f9b379916c8
parent6f54e2d0d3a904e55c9c50b78542072f6c42080e (diff)
downloadop-kernel-dev-5e8d5c29482dc56de5971ddc99c6e7f69e4d16f6.zip
op-kernel-dev-5e8d5c29482dc56de5971ddc99c6e7f69e4d16f6.tar.gz
[PATCH] knfsd: nfsd4: fix laundromat shutdown race
We need to make sure the laundromat work doesn't reschedule itself just when we try to cancel it. Also, we shouldn't be waiting for it to finish running while holding the state lock, as that's a potential deadlock. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--fs/nfsd/nfs4state.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index a8c2122..01ff544 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3238,8 +3238,6 @@ __nfs4_state_shutdown(void)
}
cancel_delayed_work(&laundromat_work);
- flush_workqueue(laundry_wq);
- destroy_workqueue(laundry_wq);
nfsd4_shutdown_recdir();
nfs4_init = 0;
}
@@ -3247,6 +3245,8 @@ __nfs4_state_shutdown(void)
void
nfs4_state_shutdown(void)
{
+ cancel_rearming_delayed_workqueue(laundry_wq, &laundromat_work);
+ destroy_workqueue(laundry_wq);
nfs4_lock_state();
nfs4_release_reclaim();
__nfs4_state_shutdown();
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