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path: root/drivers/staging/lustre/lustre/mdc/mdc_locks.c
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Diffstat (limited to 'drivers/staging/lustre/lustre/mdc/mdc_locks.c')
-rw-r--r--drivers/staging/lustre/lustre/mdc/mdc_locks.c113
1 files changed, 91 insertions, 22 deletions
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
index fb5a9959bf7a..8aa7c80c2002 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
@@ -39,7 +39,6 @@
# include <linux/module.h>
# include <linux/pagemap.h>
# include <linux/miscdevice.h>
-# include <linux/init.h>
#include <lustre_acl.h>
#include <obd_class.h>
@@ -75,6 +74,12 @@ EXPORT_SYMBOL(it_clear_disposition);
int it_open_error(int phase, struct lookup_intent *it)
{
+ if (it_disposition(it, DISP_OPEN_LEASE)) {
+ if (phase >= DISP_OPEN_LEASE)
+ return it->d.lustre.it_status;
+ else
+ return 0;
+ }
if (it_disposition(it, DISP_OPEN_OPEN)) {
if (phase >= DISP_OPEN_OPEN)
return it->d.lustre.it_status;
@@ -281,14 +286,21 @@ static struct ptlrpc_request *mdc_intent_open_pack(struct obd_export *exp,
/* XXX: openlock is not cancelled for cross-refs. */
/* If inode is known, cancel conflicting OPEN locks. */
if (fid_is_sane(&op_data->op_fid2)) {
- if (it->it_flags & (FMODE_WRITE|MDS_OPEN_TRUNC))
- mode = LCK_CW;
+ if (it->it_flags & MDS_OPEN_LEASE) { /* try to get lease */
+ if (it->it_flags & FMODE_WRITE)
+ mode = LCK_EX;
+ else
+ mode = LCK_PR;
+ } else {
+ if (it->it_flags & (FMODE_WRITE|MDS_OPEN_TRUNC))
+ mode = LCK_CW;
#ifdef FMODE_EXEC
- else if (it->it_flags & FMODE_EXEC)
- mode = LCK_PR;
+ else if (it->it_flags & FMODE_EXEC)
+ mode = LCK_PR;
#endif
- else
- mode = LCK_CR;
+ else
+ mode = LCK_CR;
+ }
count = mdc_resource_get_unused(exp, &op_data->op_fid2,
&cancels, mode,
MDS_INODELOCK_OPEN);
@@ -347,6 +359,62 @@ static struct ptlrpc_request *mdc_intent_open_pack(struct obd_export *exp,
return req;
}
+static struct ptlrpc_request *
+mdc_intent_getxattr_pack(struct obd_export *exp,
+ struct lookup_intent *it,
+ struct md_op_data *op_data)
+{
+ struct ptlrpc_request *req;
+ struct ldlm_intent *lit;
+ int rc, count = 0, maxdata;
+ LIST_HEAD(cancels);
+
+
+
+ req = ptlrpc_request_alloc(class_exp2cliimp(exp),
+ &RQF_LDLM_INTENT_GETXATTR);
+ if (req == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
+
+ if (it->it_op == IT_SETXATTR)
+ /* If we want to upgrade to LCK_PW, let's cancel LCK_PR
+ * locks now. This avoids unnecessary ASTs. */
+ count = mdc_resource_get_unused(exp, &op_data->op_fid1,
+ &cancels, LCK_PW,
+ MDS_INODELOCK_XATTR);
+
+ rc = ldlm_prep_enqueue_req(exp, req, &cancels, count);
+ if (rc) {
+ ptlrpc_request_free(req);
+ return ERR_PTR(rc);
+ }
+
+ /* pack the intent */
+ lit = req_capsule_client_get(&req->rq_pill, &RMF_LDLM_INTENT);
+ lit->opc = IT_GETXATTR;
+
+ maxdata = class_exp2cliimp(exp)->imp_connect_data.ocd_max_easize;
+
+ /* pack the intended request */
+ mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
+ op_data->op_valid, maxdata, -1, 0);
+
+ req_capsule_set_size(&req->rq_pill, &RMF_EADATA,
+ RCL_SERVER, maxdata);
+
+ req_capsule_set_size(&req->rq_pill, &RMF_EAVALS,
+ RCL_SERVER, maxdata);
+
+ req_capsule_set_size(&req->rq_pill, &RMF_EAVALS_LENS,
+ RCL_SERVER, maxdata);
+
+ ptlrpc_request_set_replen(req);
+
+ return req;
+}
+
static struct ptlrpc_request *mdc_intent_unlink_pack(struct obd_export *exp,
struct lookup_intent *it,
struct md_op_data *op_data)
@@ -722,6 +790,8 @@ int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
{ .l_inodebits = { MDS_INODELOCK_UPDATE } };
static const ldlm_policy_data_t layout_policy =
{ .l_inodebits = { MDS_INODELOCK_LAYOUT } };
+ static const ldlm_policy_data_t getxattr_policy = {
+ .l_inodebits = { MDS_INODELOCK_XATTR } };
ldlm_policy_data_t const *policy = &lookup_policy;
int generation, resends = 0;
struct ldlm_reply *lockrep;
@@ -738,6 +808,8 @@ int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
policy = &update_policy;
else if (it->it_op & IT_LAYOUT)
policy = &layout_policy;
+ else if (it->it_op & (IT_GETXATTR | IT_SETXATTR))
+ policy = &getxattr_policy;
}
LASSERT(reqp == NULL);
@@ -768,9 +840,10 @@ resend:
} else if (it->it_op & IT_LAYOUT) {
if (!imp_connect_lvb_type(class_exp2cliimp(exp)))
return -EOPNOTSUPP;
-
req = mdc_intent_layout_pack(exp, it, op_data);
lvb_type = LVB_T_LAYOUT;
+ } else if (it->it_op & (IT_GETXATTR | IT_SETXATTR)) {
+ req = mdc_intent_getxattr_pack(exp, it, op_data);
} else {
LBUG();
return -EINVAL;
@@ -958,13 +1031,8 @@ static int mdc_finish_intent_lock(struct obd_export *exp,
LASSERTF(fid_res_name_eq(&mdt_body->fid1,
&lock->l_resource->lr_name),
- "Lock res_id: %lu/%lu/%lu, fid: %lu/%lu/%lu.\n",
- (unsigned long)lock->l_resource->lr_name.name[0],
- (unsigned long)lock->l_resource->lr_name.name[1],
- (unsigned long)lock->l_resource->lr_name.name[2],
- (unsigned long)fid_seq(&mdt_body->fid1),
- (unsigned long)fid_oid(&mdt_body->fid1),
- (unsigned long)fid_ver(&mdt_body->fid1));
+ "Lock res_id: "DLDLMRES", fid: "DFID"\n",
+ PLDLMRES(lock->l_resource), PFID(&mdt_body->fid1));
LDLM_LOCK_PUT(lock);
memcpy(&old_lock, lockh, sizeof(*lockh));
@@ -1065,10 +1133,10 @@ int mdc_intent_lock(struct obd_export *exp, struct md_op_data *op_data,
LASSERT(it);
CDEBUG(D_DLMTRACE, "(name: %.*s,"DFID") in obj "DFID
- ", intent: %s flags %#o\n", op_data->op_namelen,
- op_data->op_name, PFID(&op_data->op_fid2),
- PFID(&op_data->op_fid1), ldlm_it2str(it->it_op),
- it->it_flags);
+ ", intent: %s flags %#Lo\n", op_data->op_namelen,
+ op_data->op_name, PFID(&op_data->op_fid2),
+ PFID(&op_data->op_fid1), ldlm_it2str(it->it_op),
+ it->it_flags);
lockh.cookie = 0;
if (fid_is_sane(&op_data->op_fid2) &&
@@ -1194,9 +1262,10 @@ int mdc_intent_getattr_async(struct obd_export *exp,
int rc = 0;
__u64 flags = LDLM_FL_HAS_INTENT;
- CDEBUG(D_DLMTRACE,"name: %.*s in inode "DFID", intent: %s flags %#o\n",
- op_data->op_namelen, op_data->op_name, PFID(&op_data->op_fid1),
- ldlm_it2str(it->it_op), it->it_flags);
+ CDEBUG(D_DLMTRACE,
+ "name: %.*s in inode "DFID", intent: %s flags %#Lo\n",
+ op_data->op_namelen, op_data->op_name, PFID(&op_data->op_fid1),
+ ldlm_it2str(it->it_op), it->it_flags);
fid_build_reg_res_name(&op_data->op_fid1, &res_id);
req = mdc_intent_getattr_pack(exp, it, op_data);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.