1 files changed, 16 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 03eb5ed503f7..6e92ba61f7c0 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1685,6 +1685,22 @@ and is between 256 and 4096 characters. It is defined in the file
         stifb=          [HW]
                         Format: bpp:<bpp1>[:<bpp2>[:<bpp3>...]]
 
+        sunrpc.pool_mode=
+                        [NFS]
+                        Control how the NFS server code allocates CPUs to
+                        service thread pools.  Depending on how many NICs
+                        you have and where their interrupts are bound, this
+                        option will affect which CPUs will do NFS serving.
+                        Note: this parameter cannot be changed while the
+                        NFS server is running.
+
+                        auto        the server chooses an appropriate mode
+                                    automatically using heuristics
+                        global      a single global pool contains all CPUs
+                        percpu      one pool for each CPU
+                        pernode     one pool for each NUMA node (equivalent
+                                    to global on non-NUMA machines)
+
         swiotlb=        [IA-64] Number of I/O TLB slabs
 
         switches=       [HW,M68k]