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author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-06-25 10:15:15 -0400 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-07-10 23:40:35 -0400 |
commit | fc432dd90760a629c57026e57f65ff80a1a31d2f (patch) | |
tree | 1df060f199effb8cfd52772e618c0bac7b8d0e9f /net/sunrpc/auth_gss | |
parent | 696e38df9d1b256e97b077ecde7afb8dd60364fd (diff) | |
download | kernel_samsung_tuna-fc432dd90760a629c57026e57f65ff80a1a31d2f.zip kernel_samsung_tuna-fc432dd90760a629c57026e57f65ff80a1a31d2f.tar.gz kernel_samsung_tuna-fc432dd90760a629c57026e57f65ff80a1a31d2f.tar.bz2 |
SUNRPC: Enforce atomic updates of rpc_cred->cr_flags
Convert to the use of atomic bitops...
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/auth_gss')
-rw-r--r-- | net/sunrpc/auth_gss/auth_gss.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index 766de0a..55c47ae 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -114,8 +114,8 @@ gss_cred_set_ctx(struct rpc_cred *cred, struct gss_cl_ctx *ctx) write_lock(&gss_ctx_lock); old = gss_cred->gc_ctx; gss_cred->gc_ctx = ctx; - cred->cr_flags |= RPCAUTH_CRED_UPTODATE; - cred->cr_flags &= ~RPCAUTH_CRED_NEW; + set_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags); + clear_bit(RPCAUTH_CRED_NEW, &cred->cr_flags); write_unlock(&gss_ctx_lock); if (old) gss_put_ctx(old); @@ -128,7 +128,7 @@ gss_cred_is_uptodate_ctx(struct rpc_cred *cred) int res = 0; read_lock(&gss_ctx_lock); - if ((cred->cr_flags & RPCAUTH_CRED_UPTODATE) && gss_cred->gc_ctx) + if (test_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) && gss_cred->gc_ctx) res = 1; read_unlock(&gss_ctx_lock); return res; @@ -732,7 +732,7 @@ gss_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags) * Note: in order to force a call to call_refresh(), we deliberately * fail to flag the credential as RPCAUTH_CRED_UPTODATE. */ - cred->gc_base.cr_flags = RPCAUTH_CRED_NEW; + cred->gc_base.cr_flags = 1UL << RPCAUTH_CRED_NEW; cred->gc_service = gss_auth->service; return &cred->gc_base; @@ -764,7 +764,7 @@ gss_match(struct auth_cred *acred, struct rpc_cred *rc, int flags) * we don't really care if the credential has expired or not, * since the caller should be prepared to reinitialise it. */ - if ((flags & RPCAUTH_LOOKUP_NEW) && (rc->cr_flags & RPCAUTH_CRED_NEW)) + if ((flags & RPCAUTH_LOOKUP_NEW) && test_bit(RPCAUTH_CRED_NEW, &rc->cr_flags)) goto out; /* Don't match with creds that have expired. */ if (gss_cred->gc_ctx && time_after(jiffies, gss_cred->gc_ctx->gc_expiry)) @@ -820,7 +820,7 @@ gss_marshal(struct rpc_task *task, __be32 *p) mic.data = (u8 *)(p + 1); maj_stat = gss_get_mic(ctx->gc_gss_ctx, &verf_buf, &mic); if (maj_stat == GSS_S_CONTEXT_EXPIRED) { - cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE; + clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags); } else if (maj_stat != 0) { printk("gss_marshal: gss_get_mic FAILED (%d)\n", maj_stat); goto out_put_ctx; @@ -873,7 +873,7 @@ gss_validate(struct rpc_task *task, __be32 *p) maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &verf_buf, &mic); if (maj_stat == GSS_S_CONTEXT_EXPIRED) - cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE; + clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags); if (maj_stat) goto out_bad; /* We leave it to unwrap to calculate au_rslack. For now we just @@ -927,7 +927,7 @@ gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx, maj_stat = gss_get_mic(ctx->gc_gss_ctx, &integ_buf, &mic); status = -EIO; /* XXX? */ if (maj_stat == GSS_S_CONTEXT_EXPIRED) - cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE; + clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags); else if (maj_stat) return status; q = xdr_encode_opaque(p, NULL, mic.len); @@ -1026,7 +1026,7 @@ gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx, /* We're assuming that when GSS_S_CONTEXT_EXPIRED, the encryption was * done anyway, so it's safe to put the request on the wire: */ if (maj_stat == GSS_S_CONTEXT_EXPIRED) - cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE; + clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags); else if (maj_stat) return status; @@ -1113,7 +1113,7 @@ gss_unwrap_resp_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx, maj_stat = gss_verify_mic(ctx->gc_gss_ctx, &integ_buf, &mic); if (maj_stat == GSS_S_CONTEXT_EXPIRED) - cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE; + clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags); if (maj_stat != GSS_S_COMPLETE) return status; return 0; @@ -1138,7 +1138,7 @@ gss_unwrap_resp_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx, maj_stat = gss_unwrap(ctx->gc_gss_ctx, offset, rcv_buf); if (maj_stat == GSS_S_CONTEXT_EXPIRED) - cred->cr_flags &= ~RPCAUTH_CRED_UPTODATE; + clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags); if (maj_stat != GSS_S_COMPLETE) return status; if (ntohl(*(*p)++) != rqstp->rq_seqno) |