nfsd: fix default iosize calculation on 32bit
The rpc buffers will be allocated out of low memory, so we should really
only be taking that into account.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index e9eb408..aacf1f4 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -314,7 +314,7 @@
unsigned long ret;
si_meminfo(&i);
- target = i.totalram << PAGE_SHIFT;
+ target = (i.totalram - i.totalhigh) << PAGE_SHIFT;
/*
* Aim for 1/4096 of memory per thread This gives 1MB on 4Gig
* machines, but only uses 32K on 128M machines. Bottom out at