Commit 2b69c839 authored by NeilBrown's avatar NeilBrown

md: improve errno return when setting array_size

Instead of always returns EINVAL if anything goes wrong
when setting the array size, add the option of
  E2BIG
if the size requested is too large.  This makes it easier
for user-space to be sure what went wrong.
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 62e1e389
...@@ -3683,7 +3683,7 @@ array_size_store(mddev_t *mddev, const char *buf, size_t len) ...@@ -3683,7 +3683,7 @@ array_size_store(mddev_t *mddev, const char *buf, size_t len)
if (strict_blocks_to_sectors(buf, &sectors) < 0) if (strict_blocks_to_sectors(buf, &sectors) < 0)
return -EINVAL; return -EINVAL;
if (mddev->pers && mddev->pers->size(mddev, 0, 0) < sectors) if (mddev->pers && mddev->pers->size(mddev, 0, 0) < sectors)
return -EINVAL; return -E2BIG;
mddev->external_size = 1; mddev->external_size = 1;
} }
......
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