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staging: lustre: lmv: add testing for bad name hash 

Enable testing of the lfsck recovery feature in the
client code for the case when name hash for some
entry becomes corrupt.

Signed-off-by: Fan Yong <fan.yong@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5519
Reviewed-on: http://review.whamcloud.com/11846
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@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>
This commit is contained in:
Fan Yong 2016-09-18 16:37:51 -04:00 committed by Greg Kroah-Hartman
parent 7510c5ca70
commit 1ebfdcac07
2 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/staging/lustre/lustre/include/obd_support.h
View File

@ -479,6 +479,7 @@ extern char obd_jobid_var[];
#define OBD_FAIL_LFSCK_NO_AUTO 0x160b
#define OBD_FAIL_LFSCK_NO_DOUBLESCAN 0x160c
#define OBD_FAIL_LFSCK_INVALID_PFID 0x1619
#define OBD_FAIL_LFSCK_BAD_NAME_HASH 0x1628
/* UPDATE */
#define OBD_FAIL_UPDATE_OBJ_NET 0x1700

10
drivers/staging/lustre/lustre/lmv/lmv_obd.c
View File

@ -1573,9 +1573,13 @@ lmv_locate_target_for_name(struct lmv_obd *lmv, struct lmv_stripe_md *lsm,
const struct lmv_oinfo *oinfo;
struct lmv_tgt_desc *tgt;
oinfo = lsm_name_to_stripe_info(lsm, name, namelen);
if (IS_ERR(oinfo))
return ERR_CAST(oinfo);
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_BAD_NAME_HASH)) {
oinfo = &lsm->lsm_md_oinfo[cfs_fail_val];
} else {
oinfo = lsm_name_to_stripe_info(lsm, name, namelen);
if (IS_ERR(oinfo))
return ERR_CAST(oinfo);
}
*fid = oinfo->lmo_fid;
*mds = oinfo->lmo_mds;