1 files changed, 18 insertions, 1 deletions

diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 19443056ec30..0603baad5426 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -198,9 +198,26 @@ int nfsd_create_serv(void)
                 unlock_kernel();
                 return 0;
         }
+        if (nfsd_max_blksize == 0) {
+                /* choose a suitable default */
+                struct sysinfo i;
+                si_meminfo(&i);
+                /* Aim for 1/4096 of memory per thread
+                 * This gives 1MB on 4Gig machines
+                 * But only uses 32K on 128M machines.
+                 * Bottom out at 8K on 32M and smaller.
+                 * Of course, this is only a default.
+                 */
+                nfsd_max_blksize = NFSSVC_MAXBLKSIZE;
+                i.totalram >>= 12;
+                while (nfsd_max_blksize > i.totalram &&
+                       nfsd_max_blksize >= 8*1024*2)
+                        nfsd_max_blksize /= 2;
+        }
 
         atomic_set(&nfsd_busy, 0);
-        nfsd_serv = svc_create_pooled(&nfsd_program, NFSD_BUFSIZE,
+        nfsd_serv = svc_create_pooled(&nfsd_program,
+                                      NFSD_BUFSIZE - NFSSVC_MAXBLKSIZE + nfsd_max_blksize,
                                       nfsd_last_thread,
                                       nfsd, SIG_NOCLEAN, THIS_MODULE);
         if (nfsd_serv == NULL)