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author | Chris Metcalf <cmetcalf@tilera.com> | 2010-11-24 18:30:28 (GMT) |
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committer | Chris Metcalf <cmetcalf@tilera.com> | 2010-11-24 18:30:28 (GMT) |
commit | b03a6c4c7d8ebd8118d668eafdb85f5f76b5437f (patch) | |
tree | f6ca7059e9c1bc1aac9a6741316f8e07ba349f7f /include/linux/sunrpc/svc_xprt.h | |
parent | 24f3f6b5eff92608a62449e33bfac0eed1447d02 (diff) | |
parent | 3561d43fd289f590fdae672e5eb831b8d5cf0bf6 (diff) | |
download | linux-fsl-qoriq-b03a6c4c7d8ebd8118d668eafdb85f5f76b5437f.tar.xz |
Merge branch 'master' into for-linus
Diffstat (limited to 'include/linux/sunrpc/svc_xprt.h')
-rw-r--r-- | include/linux/sunrpc/svc_xprt.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h index bbdb680..aea0d438 100644 --- a/include/linux/sunrpc/svc_xprt.h +++ b/include/linux/sunrpc/svc_xprt.h @@ -82,18 +82,28 @@ struct svc_xprt { struct net *xpt_net; }; -static inline void register_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u) +static inline void unregister_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u) { spin_lock(&xpt->xpt_lock); - list_add(&u->list, &xpt->xpt_users); + list_del_init(&u->list); spin_unlock(&xpt->xpt_lock); } -static inline void unregister_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u) +static inline int register_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u) { spin_lock(&xpt->xpt_lock); - list_del_init(&u->list); + if (test_bit(XPT_CLOSE, &xpt->xpt_flags)) { + /* + * The connection is about to be deleted soon (or, + * worse, may already be deleted--in which case we've + * already notified the xpt_users). + */ + spin_unlock(&xpt->xpt_lock); + return -ENOTCONN; + } + list_add(&u->list, &xpt->xpt_users); spin_unlock(&xpt->xpt_lock); + return 0; } int svc_reg_xprt_class(struct svc_xprt_class *); |