Increase the default buffer size for cachelist channel files.

Commit Message

Sean Finney March 29, 2011, 7:54 a.m. UTC

None

Patch

diff --git a/support/include/misc.h b/support/include/misc.h
index 9a1b25d..7e3874e 100644
--- a/support/include/misc.h
+++ b/support/include/misc.h
@@ -24,4 +24,7 @@  struct hostent *get_reliable_hostbyaddr(const char *addr, int len, int type);
 
 extern int is_mountpoint(char *path);
 
+/* size of the file pointer buffers for rpc procfs files */
+#define RPC_CHAN_BUF_SIZE 32768
+
 #endif /* MISC_H */
diff --git a/utils/gssd/svcgssd_proc.c b/utils/gssd/svcgssd_proc.c
index 6f2ba61..8f6548e 100644
--- a/utils/gssd/svcgssd_proc.c
+++ b/utils/gssd/svcgssd_proc.c
@@ -56,6 +56,7 @@ 
 #include "gss_util.h"
 #include "err_util.h"
 #include "context.h"
+#include "misc.h"
 
 extern char * mech2file(gss_OID mech);
 #define SVCGSSD_CONTEXT_CHANNEL "/proc/net/rpc/auth.rpcsec.context/channel"
@@ -78,6 +79,7 @@  do_svc_downcall(gss_buffer_desc *out_handle, struct svc_cred *cred,
 	FILE *f;
 	int i;
 	char *fname = NULL;
+	char vbuf[RPC_CHAN_BUF_SIZE];
 	int err;
 
 	printerr(1, "doing downcall\n");
@@ -90,6 +92,7 @@  do_svc_downcall(gss_buffer_desc *out_handle, struct svc_cred *cred,
 			     SVCGSSD_CONTEXT_CHANNEL, strerror(errno));
 		goto out_err;
 	}
+	setvbuf(f, vbuf, _IOLBF, RPC_CHAN_BUF_SIZE);
 	qword_printhex(f, out_handle->value, out_handle->length);
 	/* XXX are types OK for the rest of this? */
 	/* For context cache, use the actual context endtime */
diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
index 75a1052..b4bd6cf 100644
--- a/utils/mountd/cache.c
+++ b/utils/mountd/cache.c
@@ -729,6 +729,7 @@  struct {
 	char *cache_name;
 	void (*cache_handle)(FILE *f);
 	FILE *f;
+	char vbuf[RPC_CHAN_BUF_SIZE];
 } cachelist[] = {
 	{ "auth.unix.ip", auth_unix_ip},
 	{ "auth.unix.gid", auth_unix_gid},
@@ -747,6 +748,7 @@  void cache_open(void)
 			continue;
 		sprintf(path, "/proc/net/rpc/%s/channel", cachelist[i].cache_name);
 		cachelist[i].f = fopen(path, "r+");
+		setvbuf(cachelist[i].f, cachelist[i].vbuf, _IOLBF, RPC_CHAN_BUF_SIZE);
 	}
 }