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sunrpc: Rewrite with explicit TLS access using __thread

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This commit is contained in:
Florian Weimer 2015-10-17 12:07:04 +02:00
parent 6782806d8f
commit 4e1665024a
2 changed files with 17 additions and 14 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2015-10-17 Florian Weimer <fweimer@redhat.com>
sunrpc: Rewrite with explicit TLS access using __thread.
* sunrpc/rpc_thread.c (thread_rpc_vars): New TLS variable.
(__rpc_thread_destroy, rpc_thread_multi): Access thread_rpc_vars
directly.
(__rpc_thread_variables): Access thread_rpc_vars directly.
Eliminate redundant assignment of the tvp variable.
2015-10-17 Florian Weimer <fweimer@redhat.com>
malloc: Rewrite with explicit TLS access using __thread.

22
sunrpc/rpc_thread.c
View File

@ -10,7 +10,8 @@
/* Variable used in non-threaded applications or for the first thread. */
static struct rpc_thread_variables __libc_tsd_RPC_VARS_mem;
__libc_tsd_define (, struct rpc_thread_variables *, RPC_VARS)
static __thread struct rpc_thread_variables *thread_rpc_vars
attribute_tls_model_ie;
/*
* Task-variable destructor
@ -18,8 +19,7 @@ __libc_tsd_define (, struct rpc_thread_variables *, RPC_VARS)
void __attribute__ ((section ("__libc_thread_freeres_fn")))
__rpc_thread_destroy (void)
{
struct rpc_thread_variables *tvp
= __libc_tsd_get (struct rpc_thread_variables *, RPC_VARS);
struct rpc_thread_variables *tvp = thread_rpc_vars;
if (tvp != NULL) {
__rpc_thread_svc_cleanup ();
@ -34,7 +34,7 @@ __rpc_thread_destroy (void)
free (tvp->svc_pollfd_s);
if (tvp != &__libc_tsd_RPC_VARS_mem)
free (tvp);
__libc_tsd_set (struct rpc_thread_variables *, RPC_VARS, NULL);
thread_rpc_vars = NULL;
}
}
#ifdef _LIBC_REENTRANT
@ -49,8 +49,7 @@ text_set_element (__libc_subfreeres, __rpc_thread_destroy);
static void
rpc_thread_multi (void)
{
__libc_tsd_set (struct rpc_thread_variables *, RPC_VARS,
&__libc_tsd_RPC_VARS_mem);
thread_rpc_vars = &__libc_tsd_RPC_VARS_mem;
}
@ -58,20 +57,15 @@ struct rpc_thread_variables *
__rpc_thread_variables (void)
{
__libc_once_define (static, once);
struct rpc_thread_variables *tvp;
struct rpc_thread_variables *tvp = thread_rpc_vars;
tvp = __libc_tsd_get (struct rpc_thread_variables *, RPC_VARS);
if (tvp == NULL) {
__libc_once (once, rpc_thread_multi);
tvp = __libc_tsd_get (struct rpc_thread_variables *, RPC_VARS);
tvp = thread_rpc_vars;
if (tvp == NULL) {
tvp = calloc (1, sizeof *tvp);
if (tvp != NULL)
__libc_tsd_set (struct rpc_thread_variables *,
RPC_VARS, tvp);
else
tvp = __libc_tsd_get (struct rpc_thread_variables *,
RPC_VARS);
thread_rpc_vars = tvp;
}
}
return tvp;