src/patches/suse-2.6.27.39/patches.fixes/nfs-honour-server-preferred-io-size

   1 From: NeilBrown <neilb@suse.de>
   2 Subject: NFS: Honour server-preferred io sizes
   3 Patch-mainline: not yet
   4 References: bnc#550648
   5
   6 When interpreting the preferred IO size sent by the server, linux/nfs
   7 assumes that a non-zero setting means a user-specified setting so
   8 it ignores the server specified setting.
   9
  10 This patch initialises rsize and wsize to zero so the server-preferred
  11 values get using (if no value is specified in a mount option).
  12
  13 Signed-off-by: Neil Brown <neilb@suse.de>
  14
  15 ---
  16  fs/nfs/super.c |    4 ++--
  17  1 file changed, 2 insertions(+), 2 deletions(-)
  18
  19 --- linux-2.6.27-SLE11_BRANCH.orig/fs/nfs/super.c
  20 +++ linux-2.6.27-SLE11_BRANCH/fs/nfs/super.c
  21 @@ -1536,8 +1536,8 @@ static int nfs_validate_mount_data(void
  22                 goto out_no_data;
  23
  24         args->flags             = (NFS_MOUNT_VER3 | NFS_MOUNT_TCP);
  25 -       args->rsize             = NFS_MAX_FILE_IO_SIZE;
  26 -       args->wsize             = NFS_MAX_FILE_IO_SIZE;
  27 +       args->rsize             = 0;
  28 +       args->wsize             = 0;
  29         args->acregmin          = NFS_DEF_ACREGMIN;
  30         args->acregmax          = NFS_DEF_ACREGMAX;
  31         args->acdirmin          = NFS_DEF_ACDIRMIN;