NeilBrown aaf68cfbf2 [PATCH] knfsd: fix a race in closing NFSd connections ... If you lose this race, it can iput a socket inode twice and you get a BUG in fs/inode.c When I added the option for user-space to close a socket, I added some cruft to svc_delete_socket so that I could call that function when closing a socket per user-space request. This was the wrong thing to do. I should have just set SK_CLOSE and let normal mechanisms do the work. Not only wrong, but buggy. The locking is all wrong and it openned up a race where-by a socket could be closed twice. So this patch: Introduces svc_close_socket which sets SK_CLOSE then either leave the close up to a thread, or calls svc_delete_socket if it can get SK_BUSY. Adds a bias to sk_busy which is removed when SK_DEAD is set, This avoid races around shutting down the socket. Changes several 'spin_lock' to 'spin_lock_bh' where the _bh was missing. Bugzilla-url: http://bugzilla.kernel.org/show_bug.cgi?id=7916 Signed-off-by: Neil Brown <neilb@suse.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-02-09 09:25:47 -08:00
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auth_gss.h
auth.h
cache.h
clnt.h
debug.h
gss_api.h
gss_asn1.h
gss_err.h
gss_krb5.h
gss_spkm3.h
Kbuild
metrics.h
msg_prot.h
rpc_pipe_fs.h
sched.h
stats.h
svc.h
svcauth_gss.h
svcauth.h
svcsock.h	[PATCH] knfsd: fix a race in closing NFSd connections	2007-02-09 09:25:47 -08:00
timer.h
types.h
xdr.h
xprt.h