* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*/
#define DEBUG_SUBSYSTEM S_LMV
-#ifdef __KERNEL__
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/math64.h>
#include <linux/seq_file.h>
#include <linux/namei.h>
-#include <linux/lustre_intent.h>
-#else
-#include <liblustre.h>
-#endif
+#include <lustre_intent.h>
#include <obd_support.h>
#include <lustre/lustre_idl.h>
* see mdt_cross_open */
LASSERT(it->it_op & IT_OPEN);
op_data->op_fid2 = *parent_fid;
- /* Add object FID to op_fid3, in case it needs to check stale
- * (M_CHECK_STALE), see mdc_finish_intent_lock */
- op_data->op_fid3 = body->mbo_fid1;
}
op_data->op_bias = MDS_CROSS_REF;
- CDEBUG(D_INODE, "REMOTE_INTENT with fid="DFID" -> mds #%d\n",
+ CDEBUG(D_INODE, "REMOTE_INTENT with fid="DFID" -> mds #%u\n",
PFID(&body->mbo_fid1), tgt->ltd_idx);
rc = md_intent_lock(tgt->ltd_exp, op_data, it, &req, cb_blocking,
return rc;
}
-#ifdef __KERNEL__
-int lmv_revalidate_slaves(struct obd_export *exp, struct mdt_body *mbody,
- struct lmv_stripe_md *lsm,
+int lmv_revalidate_slaves(struct obd_export *exp,
+ const struct lmv_stripe_md *lsm,
ldlm_blocking_callback cb_blocking,
int extra_lock_flags)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
+ struct ptlrpc_request *req = NULL;
struct mdt_body *body;
struct md_op_data *op_data;
- unsigned long size = 0;
- unsigned long nlink = 0;
- obd_time atime = 0;
- obd_time ctime = 0;
- obd_time mtime = 0;
int i;
int rc = 0;
for (i = 0; i < lsm->lsm_md_stripe_count; i++) {
struct lu_fid fid;
struct lookup_intent it = { .it_op = IT_GETATTR };
- struct ptlrpc_request *req = NULL;
struct lustre_handle *lockh = NULL;
struct lmv_tgt_desc *tgt = NULL;
struct inode *inode;
if (IS_ERR(tgt))
GOTO(cleanup, rc = PTR_ERR(tgt));
- CDEBUG(D_INODE, "Revalidate slave "DFID" -> mds #%d\n",
+ CDEBUG(D_INODE, "Revalidate slave "DFID" -> mds #%u\n",
PFID(&fid), tgt->ltd_idx);
+ if (req != NULL) {
+ ptlrpc_req_finished(req);
+ req = NULL;
+ }
+
rc = md_intent_lock(tgt->ltd_exp, op_data, &it, &req,
cb_blocking, extra_lock_flags);
if (rc < 0)
PFID(&lsm->lsm_md_oinfo[i].lmo_fid),
PFID(&lsm->lsm_md_oinfo[0].lmo_fid));
- if (req != NULL)
- ptlrpc_req_finished(req);
-
if (it.d.lustre.it_lock_mode && lockh) {
ldlm_lock_decref(lockh,
it.d.lustre.it_lock_mode);
i_size_write(inode, body->mbo_size);
+ inode->i_blocks = body->mbo_blocks;
set_nlink(inode, body->mbo_nlink);
LTIME_S(inode->i_atime) = body->mbo_atime;
LTIME_S(inode->i_ctime) = body->mbo_ctime;
LTIME_S(inode->i_mtime) = body->mbo_mtime;
-
- if (req != NULL)
- ptlrpc_req_finished(req);
}
md_set_lock_data(tgt->ltd_exp, &lockh->cookie, inode, NULL);
-
- size += i_size_read(inode);
-
- if (i != 0)
- nlink += inode->i_nlink - 2;
- else
- nlink += inode->i_nlink;
-
- atime = LTIME_S(inode->i_atime) > atime ?
- LTIME_S(inode->i_atime) : atime;
- ctime = LTIME_S(inode->i_ctime) > ctime ?
- LTIME_S(inode->i_ctime) : ctime;
- mtime = LTIME_S(inode->i_mtime) > mtime ?
- LTIME_S(inode->i_mtime) : mtime;
-
if (it.d.lustre.it_lock_mode != 0 && lockh != NULL) {
ldlm_lock_decref(lockh, it.d.lustre.it_lock_mode);
it.d.lustre.it_lock_mode = 0;
}
-
- CDEBUG(D_INODE, "i %d "DFID" size %llu, nlink %u, atime "
- "%lu, mtime %lu, ctime %lu.\n", i, PFID(&fid),
- i_size_read(inode), inode->i_nlink,
- LTIME_S(inode->i_atime), LTIME_S(inode->i_mtime),
- LTIME_S(inode->i_ctime));
}
- /*
- * update attr of master request.
- */
- CDEBUG(D_INODE, "Return refreshed attrs: size = %lu nlink %lu atime "
- LPU64 "ctime "LPU64" mtime "LPU64" for " DFID"\n", size, nlink,
- atime, ctime, mtime, PFID(&lsm->lsm_md_oinfo[0].lmo_fid));
-
- if (mbody != NULL) {
- mbody->mbo_atime = atime;
- mbody->mbo_ctime = ctime;
- mbody->mbo_mtime = mtime;
- }
cleanup:
+ if (req != NULL)
+ ptlrpc_req_finished(req);
+
OBD_FREE_PTR(op_data);
RETURN(rc);
}
-#else
-
-int lmv_revalidate_slaves(struct obd_export *exp, struct mdt_body *mbody,
- struct lmv_stripe_md *lsm,
- ldlm_blocking_callback cb_blocking,
- int extra_lock_flags)
-{
- return 0;
-}
-
-#endif
/*
* IT_OPEN is intended to open (and create, possible) an object. Parent (pid)
* may be split dir.
*/
-int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
- struct lookup_intent *it, struct ptlrpc_request **reqp,
- ldlm_blocking_callback cb_blocking, __u64 extra_lock_flags)
+static int lmv_intent_open(struct obd_export *exp, struct md_op_data *op_data,
+ struct lookup_intent *it,
+ struct ptlrpc_request **reqp,
+ ldlm_blocking_callback cb_blocking,
+ __u64 extra_lock_flags)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
int rc;
ENTRY;
- /* Note: client might open with some random flags(sanity 33b), so we can
- * not make sure op_fid2 is being initialized with BY_FID flag */
- if (it->it_flags & MDS_OPEN_BY_FID && fid_is_sane(&op_data->op_fid2)) {
- if (op_data->op_mea1 != NULL) {
- struct lmv_stripe_md *lsm = op_data->op_mea1;
- const struct lmv_oinfo *oinfo;
-
- oinfo = lsm_name_to_stripe_info(lsm, op_data->op_name,
- op_data->op_namelen);
- if (IS_ERR(oinfo))
- RETURN(PTR_ERR(oinfo));
- op_data->op_fid1 = oinfo->lmo_fid;
- }
+ if (it->it_flags & MDS_OPEN_BY_FID) {
+ LASSERT(fid_is_sane(&op_data->op_fid2));
+
+ /* for striped directory, we can't know parent stripe fid
+ * without name, but we can set it to child fid, and MDT
+ * will obtain it from linkea in open in such case. */
+ if (op_data->op_mea1 != NULL)
+ op_data->op_fid1 = op_data->op_fid2;
tgt = lmv_find_target(lmv, &op_data->op_fid2);
if (IS_ERR(tgt))
op_data->op_mds = tgt->ltd_idx;
} else {
+ LASSERT(fid_is_sane(&op_data->op_fid1));
+ LASSERT(fid_is_zero(&op_data->op_fid2));
+ LASSERT(op_data->op_name != NULL);
+
tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
if (IS_ERR(tgt))
RETURN(PTR_ERR(tgt));
/* If it is ready to open the file by FID, do not need
* allocate FID at all, otherwise it will confuse MDT */
- if ((it->it_op & IT_CREAT) &&
- !(it->it_flags & MDS_OPEN_BY_FID)) {
+ if ((it->it_op & IT_CREAT) && !(it->it_flags & MDS_OPEN_BY_FID)) {
/*
- * For open with IT_CREATE and for IT_CREATE cases allocate new
- * fid and setup FLD for it.
+ * For lookup(IT_CREATE) cases allocate new fid and setup FLD
+ * for it.
*/
- op_data->op_fid3 = op_data->op_fid2;
rc = lmv_fid_alloc(NULL, exp, &op_data->op_fid2, op_data);
if (rc != 0)
RETURN(rc);
}
CDEBUG(D_INODE, "OPEN_INTENT with fid1="DFID", fid2="DFID","
- " name='%s' -> mds #%d\n", PFID(&op_data->op_fid1),
+ " name='%s' -> mds #%u\n", PFID(&op_data->op_fid1),
PFID(&op_data->op_fid2), op_data->op_name, tgt->ltd_idx);
rc = md_intent_lock(tgt->ltd_exp, op_data, it, reqp, cb_blocking,
int rc = 0;
ENTRY;
+ /* If it returns ERR_PTR(-EBADFD) then it is an unknown hash type
+ * it will try all stripes to locate the object */
tgt = lmv_locate_mds(lmv, op_data, &op_data->op_fid1);
- if (IS_ERR(tgt))
+ if (IS_ERR(tgt) && (PTR_ERR(tgt) != -EBADFD))
RETURN(PTR_ERR(tgt));
+ /* Both migrating dir and unknown hash dir need to try
+ * all of sub-stripes */
+ if (lsm != NULL && !lmv_is_known_hash_type(lsm->lsm_md_hash_type)) {
+ struct lmv_oinfo *oinfo;
+
+ oinfo = &lsm->lsm_md_oinfo[0];
+
+ op_data->op_fid1 = oinfo->lmo_fid;
+ op_data->op_mds = oinfo->lmo_mds;
+ tgt = lmv_get_target(lmv, oinfo->lmo_mds, NULL);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+ }
+
if (!fid_is_sane(&op_data->op_fid2))
fid_zero(&op_data->op_fid2);
CDEBUG(D_INODE, "LOOKUP_INTENT with fid1="DFID", fid2="DFID
- ", name='%s' -> mds #%d lsm=%p lsm_magic=%x\n",
+ ", name='%s' -> mds #%u lsm=%p lsm_magic=%x\n",
PFID(&op_data->op_fid1), PFID(&op_data->op_fid2),
op_data->op_name ? op_data->op_name : "<NULL>",
tgt->ltd_idx, lsm, lsm == NULL ? -1 : lsm->lsm_md_magic);
/* If RPC happens, lsm information will be revalidated
* during update_inode process (see ll_update_lsm_md) */
if (op_data->op_mea2 != NULL) {
- rc = lmv_revalidate_slaves(exp, NULL, op_data->op_mea2,
+ rc = lmv_revalidate_slaves(exp, op_data->op_mea2,
cb_blocking,
extra_lock_flags);
if (rc != 0)
}
RETURN(rc);
} else if (it_disposition(it, DISP_LOOKUP_NEG) && lsm != NULL &&
- lsm->lsm_md_hash_type & LMV_HASH_FLAG_MIGRATION) {
- /* For migrating directory, if it can not find the child in
- * the source directory(master stripe), try the targeting
- * directory(stripe 1) */
- tgt = lmv_find_target(lmv, &lsm->lsm_md_oinfo[1].lmo_fid);
- if (IS_ERR(tgt))
- RETURN(PTR_ERR(tgt));
+ lmv_need_try_all_stripes(lsm)) {
+ /* For migrating and unknown hash type directory, it will
+ * try to target the entry on other stripes */
+ int stripe_index;
- ptlrpc_req_finished(*reqp);
- it->d.lustre.it_data = NULL;
- *reqp = NULL;
+ for (stripe_index = 1;
+ stripe_index < lsm->lsm_md_stripe_count &&
+ it_disposition(it, DISP_LOOKUP_NEG); stripe_index++) {
+ struct lmv_oinfo *oinfo;
- CDEBUG(D_INODE, "For migrating dir, try target dir "DFID"\n",
- PFID(&lsm->lsm_md_oinfo[1].lmo_fid));
+ /* release the previous request */
+ ptlrpc_req_finished(*reqp);
+ it->d.lustre.it_data = NULL;
+ *reqp = NULL;
- op_data->op_fid1 = lsm->lsm_md_oinfo[1].lmo_fid;
- it->d.lustre.it_disposition &= ~DISP_ENQ_COMPLETE;
- rc = md_intent_lock(tgt->ltd_exp, op_data, it, reqp,
- cb_blocking, extra_lock_flags);
+ oinfo = &lsm->lsm_md_oinfo[stripe_index];
+ tgt = lmv_find_target(lmv, &oinfo->lmo_fid);
+ if (IS_ERR(tgt))
+ RETURN(PTR_ERR(tgt));
+
+ CDEBUG(D_INODE, "Try other stripes " DFID"\n",
+ PFID(&oinfo->lmo_fid));
+
+ op_data->op_fid1 = oinfo->lmo_fid;
+ it->d.lustre.it_disposition &= ~DISP_ENQ_COMPLETE;
+ rc = md_intent_lock(tgt->ltd_exp, op_data, it, reqp,
+ cb_blocking, extra_lock_flags);
+ if (rc != 0)
+ RETURN(rc);
+ }
}
+
/*
* MDS has returned success. Probably name has been resolved in
* remote inode. Let's check this.
ldlm_blocking_callback cb_blocking,
__u64 extra_lock_flags)
{
- struct obd_device *obd = exp->exp_obd;
- int rc;
- ENTRY;
+ struct obd_device *obd = exp->exp_obd;
+ int rc;
+ ENTRY;
- LASSERT(it != NULL);
- LASSERT(fid_is_sane(&op_data->op_fid1));
+ LASSERT(it != NULL);
+ LASSERT(fid_is_sane(&op_data->op_fid1));
- CDEBUG(D_INODE, "INTENT LOCK '%s' for '%*s' on "DFID"\n",
- LL_IT2STR(it), op_data->op_namelen, op_data->op_name,
- PFID(&op_data->op_fid1));
+ CDEBUG(D_INODE, "INTENT LOCK '%s' for "DFID" '%.*s' on "DFID"\n",
+ LL_IT2STR(it), PFID(&op_data->op_fid2),
+ (int)op_data->op_namelen, op_data->op_name,
+ PFID(&op_data->op_fid1));
- rc = lmv_check_connect(obd);
- if (rc)
- RETURN(rc);
+ rc = lmv_check_connect(obd);
+ if (rc)
+ RETURN(rc);
if (it->it_op & (IT_LOOKUP | IT_GETATTR | IT_LAYOUT))
rc = lmv_intent_lookup(exp, op_data, it, reqp, cb_blocking,
else
LBUG();
+ if (rc < 0) {
+ struct lustre_handle lock_handle;
+
+ if (it->d.lustre.it_lock_mode != 0) {
+ lock_handle.cookie = it->d.lustre.it_lock_handle;
+ ldlm_lock_decref(&lock_handle,
+ it->d.lustre.it_lock_mode);
+ }
+
+ it->d.lustre.it_lock_handle = 0;
+ it->d.lustre.it_lock_mode = 0;
+
+ if (it->d.lustre.it_remote_lock_mode != 0) {
+ lock_handle.cookie = it->d.lustre.it_remote_lock_handle;
+ ldlm_lock_decref(&lock_handle,
+ it->d.lustre.it_remote_lock_mode);
+ }
+
+ it->d.lustre.it_remote_lock_handle = 0;
+ it->d.lustre.it_remote_lock_mode = 0;
+ }
+
RETURN(rc);
}