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Subject[PATCH 118/124] staging: lustre: lmv: fix parent FID for migration
Date
From: wang di <di.wang@intel.com>

If the migrating directory is under striped directory, it needs
to set right stripe FID for its parent.

Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6263
Reviewed-on: http://review.whamcloud.com/13817
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Fan Yong <fan.yong@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
---
drivers/staging/lustre/lustre/lmv/lmv_obd.c | 30 ++++++++++++++++++++++----
1 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index e4cf6d3..00a32e8 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -1581,6 +1581,8 @@ lmv_locate_target_for_name(struct lmv_obd *lmv, struct lmv_stripe_md *lsm,
struct lmv_tgt_desc *tgt;

if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_NAME_HASH)) {
+ if (cfs_fail_val >= lsm->lsm_md_stripe_count)
+ return ERR_PTR(-EBADF);
oinfo = &lsm->lsm_md_oinfo[cfs_fail_val];
} else {
oinfo = lsm_name_to_stripe_info(lsm, name, namelen);
@@ -1588,11 +1590,15 @@ lmv_locate_target_for_name(struct lmv_obd *lmv, struct lmv_stripe_md *lsm,
return ERR_CAST(oinfo);
}

- *fid = oinfo->lmo_fid;
- *mds = oinfo->lmo_mds;
- tgt = lmv_get_target(lmv, *mds, NULL);
+ if (fid)
+ *fid = oinfo->lmo_fid;
+ if (mds)
+ *mds = oinfo->lmo_mds;
+
+ tgt = lmv_get_target(lmv, oinfo->lmo_mds, NULL);

- CDEBUG(D_INFO, "locate on mds %u "DFID"\n", *mds, PFID(fid));
+ CDEBUG(D_INFO, "locate on mds %u " DFID "\n", oinfo->lmo_mds,
+ PFID(&oinfo->lmo_fid));
return tgt;
}

@@ -1955,10 +1961,24 @@ static int lmv_rename(struct obd_export *exp, struct md_op_data *op_data,
if (op_data->op_cli_flags & CLI_MIGRATE) {
LASSERTF(fid_is_sane(&op_data->op_fid3), "invalid FID "DFID"\n",
PFID(&op_data->op_fid3));
+
+ if (op_data->op_mea1) {
+ struct lmv_stripe_md *lsm = op_data->op_mea1;
+ struct lmv_tgt_desc *tmp;
+
+ /* Fix the parent fid for striped dir */
+ tmp = lmv_locate_target_for_name(lmv, lsm, old,
+ oldlen,
+ &op_data->op_fid1,
+ NULL);
+ if (IS_ERR(tmp))
+ return PTR_ERR(tmp);
+ }
+
rc = lmv_fid_alloc(NULL, exp, &op_data->op_fid2, op_data);
if (rc)
return rc;
- src_tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid3);
+ src_tgt = lmv_find_target(lmv, &op_data->op_fid3);
} else {
if (op_data->op_mea1) {
struct lmv_stripe_md *lsm = op_data->op_mea1;
--
1.7.1
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