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Index: lib/libstand/nfs.c
===================================================================
--- lib/libstand/nfs.c
+++ lib/libstand/nfs.c
@@ -214,6 +214,38 @@
static int nfs_read_size = NFSREAD_MIN_SIZE;
+/*
+ * Improve boot performance over NFS
+ */
+static void
+set_nfs_read_size(void)
+{
+ char *env, *end;
+ char buf[10];
+
+ if ((env = getenv("nfs.read_size")) != NULL) {
+ errno = 0;
+ nfs_read_size = (int)strtol(env, &end, 0);
+ if (errno != 0 || *env == '\0' || *end != '\0') {
+ printf("%s: bad value: \"%s\", defaulting to %d\n",
+ "nfs.read_size", env, NFSREAD_MIN_SIZE);
+ nfs_read_size = NFSREAD_MIN_SIZE;
+ }
+ }
+ if (nfs_read_size < NFSREAD_MIN_SIZE) {
+ printf("%s: bad value: \"%d\", defaulting to %d\n",
+ "nfs.read_size", nfs_read_size, NFSREAD_MIN_SIZE);
+ nfs_read_size = NFSREAD_MIN_SIZE;
+ }
+ if (nfs_read_size > NFSREAD_MAX_SIZE) {
+ printf("%s: bad value: \"%d\", defaulting to %d\n",
+ "nfs.read_size", nfs_read_size, NFSREAD_MIN_SIZE);
+ nfs_read_size = NFSREAD_MAX_SIZE;
+ }
+ snprintf(buf, sizeof (buf), "%d", nfs_read_size);
+ setenv("nfs.read_size", buf, 1);
+}
+
#ifdef OLD_NFSV2
/*
* Fetch the root file handle (call mount daemon)
@@ -269,16 +301,7 @@
return (ntohl(repl->errno));
bcopy(repl->fh, fhp, sizeof(repl->fh));
- /*
- * Improve boot performance over NFS
- */
- if (getenv("nfs.read_size") != NULL)
- nfs_read_size = strtol(getenv("nfs.read_size"), NULL, 0);
- if (nfs_read_size < NFSREAD_MIN_SIZE)
- nfs_read_size = NFSREAD_MIN_SIZE;
- if (nfs_read_size > NFSREAD_MAX_SIZE)
- nfs_read_size = NFSREAD_MAX_SIZE;
-
+ set_nfs_read_size();
return (0);
}
@@ -885,6 +908,8 @@
return (ntohl(repl->errno));
*fhlenp = ntohl(repl->fhsize);
bcopy(repl->fh, fhp, *fhlenp);
+
+ set_nfs_read_size();
return (0);
}

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