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author | 2018-12-24 14:45:04 +0300 | |
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committer | 2018-12-27 21:01:41 -0500 | |
commit | a289ce5311f406bf846614591300a948ebc42062 (patch) | |
tree | 52672e4111d17511c4b8f7c3beb7f804e790decc /include/linux/sunrpc | |
parent | sunrpc: use-after-free in svc_process_common() (diff) | |
download | linux-a289ce5311f406bf846614591300a948ebc42062.tar.gz linux-a289ce5311f406bf846614591300a948ebc42062.tar.bz2 linux-a289ce5311f406bf846614591300a948ebc42062.zip |
sunrpc: replace svc_serv->sv_bc_xprt by boolean flag
svc_serv-> sv_bc_xprt is netns-unsafe and cannot be used as pointer.
To prevent its misuse in future it is replaced by new boolean flag.
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/linux/sunrpc')
-rw-r--r-- | include/linux/sunrpc/bc_xprt.h | 10 | ||||
-rw-r--r-- | include/linux/sunrpc/svc.h | 2 |
2 files changed, 5 insertions, 7 deletions
diff --git a/include/linux/sunrpc/bc_xprt.h b/include/linux/sunrpc/bc_xprt.h index 28721cf73ec3..4e8c773d02be 100644 --- a/include/linux/sunrpc/bc_xprt.h +++ b/include/linux/sunrpc/bc_xprt.h @@ -47,11 +47,9 @@ void xprt_free_bc_rqst(struct rpc_rqst *req); /* * Determine if a shared backchannel is in use */ -static inline int svc_is_backchannel(const struct svc_rqst *rqstp) +static inline bool svc_is_backchannel(const struct svc_rqst *rqstp) { - if (rqstp->rq_server->sv_bc_xprt) - return 1; - return 0; + return rqstp->rq_server->sv_bc_enabled; } #else /* CONFIG_SUNRPC_BACKCHANNEL */ static inline int xprt_setup_backchannel(struct rpc_xprt *xprt, @@ -60,9 +58,9 @@ static inline int xprt_setup_backchannel(struct rpc_xprt *xprt, return 0; } -static inline int svc_is_backchannel(const struct svc_rqst *rqstp) +static inline bool svc_is_backchannel(const struct svc_rqst *rqstp) { - return 0; + return false; } static inline void xprt_free_bc_request(struct rpc_rqst *req) diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index fdb6b317d974..e52385340b3b 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -109,7 +109,7 @@ struct svc_serv { spinlock_t sv_cb_lock; /* protects the svc_cb_list */ wait_queue_head_t sv_cb_waitq; /* sleep here if there are no * entries in the svc_cb_list */ - struct svc_xprt *sv_bc_xprt; /* callback on fore channel */ + bool sv_bc_enabled; /* service uses backchannel */ #endif /* CONFIG_SUNRPC_BACKCHANNEL */ }; |