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Subject[PATCH] fix CONFIG_DEVFS=y root=<number>
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Based on a patch by Adam J. Richter <adam@yggdrasil.com> [1], this fixes
the problem since 2.5.47 with mounting a devfs=y system with root=<number>

sys_get_dents64 returns -EINVAL if there is not space for an entry, so
we need to activate the loop code to expand the buffer.

[1] http://marc.theaimsgroup.com/?l=linux-kernel&m=103762980207529&w=2
Tested with 2.5.53-um2


diff -Nru a/init/do_mounts.c b/init/do_mounts.c
--- a/init/do_mounts.c Sat Jan 4 00:14:34 2003
+++ b/init/do_mounts.c Sat Jan 4 00:14:34 2003
@@ -333,7 +333,7 @@
for (bytes = 0, p = buf; bytes < len; bytes += n, p+=n) {
n = sys_getdents64(fd, p, len - bytes);
if (n < 0)
- return -1;
+ return n;
if (n == 0)
return bytes;
}
@@ -361,7 +361,7 @@
return p;
}
kfree(p);
- if (n < 0)
+ if (n < 0 && n != -EINVAL)
break;
}
close(fd);
-
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