src/patches/suse-2.6.27.31/patches.fixes/0027-md-improve-errno-return-when-setting-array_size.patch

   1 From 2b69c83924396ad1eda36fdd267c9d2f360f5555 Mon Sep 17 00:00:00 2001
   2 From: NeilBrown <neilb@suse.de>
   3 Date: Tue, 26 May 2009 09:41:17 +1000
   4 Subject: [PATCH] md: improve errno return when setting array_size
   5
   6 Instead of always returns EINVAL if anything goes wrong
   7 when setting the array size, add the option of
   8   E2BIG
   9 if the size requested is too large.  This makes it easier
  10 for user-space to be sure what went wrong.
  11
  12 Signed-off-by: NeilBrown <neilb@suse.de>
  13 ---
  14  drivers/md/md.c |    2 +-
  15  1 file changed, 1 insertion(+), 1 deletion(-)
  16
  17 --- linux-2.6.27-SLE11_BRANCH.orig/drivers/md/md.c
  18 +++ linux-2.6.27-SLE11_BRANCH/drivers/md/md.c
  19 @@ -3449,7 +3449,7 @@ array_size_store(mddev_t *mddev, const c
  20                 if (strict_blocks_to_sectors(buf, &sectors) < 0)
  21                         return -EINVAL;
  22                 if (mddev->pers && mddev->pers->size(mddev, 0, 0) < sectors)
  23 -                       return -EINVAL;
  24 +                       return -E2BIG;
  25
  26                 mddev->external_size = 1;
  27         }