staging: lustre: dne: setdirstripe should fail if not supported
If MDS doesn't support striped directory, creating striped directory from a userland utility such as 'lfs setdirstripe' should fail. Signed-off-by: Lai Siyao <lai.siyao@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6661 Reviewed-on: http://review.whamcloud.com/15123 Reviewed-by: James Simmons <uja.ornl@yahoo.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: James Simmons <jsimmons@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -419,6 +419,10 @@ static int ll_dir_setdirstripe(struct inode *parent, struct lmv_user_md *lump,
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PFID(ll_inode2fid(parent)), parent, dirname,
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(int)lump->lum_stripe_offset, lump->lum_stripe_count);
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if (lump->lum_stripe_count > 1 &&
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!(exp_connect_flags(sbi->ll_md_exp) & OBD_CONNECT_DIR_STRIPE))
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return -EINVAL;
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if (lump->lum_magic != cpu_to_le32(LMV_USER_MAGIC))
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lustre_swab_lmv_user_md(lump);
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