#include <linux/obd_class.h>
#include <linux/lustre_mds.h>
#include <linux/lustre_dlm.h>
+#include <linux/lustre_snap.h>
#include <linux/lprocfs_status.h>
#include "mdc_internal.h"
/* CREAT needs to be tested before open (both could be set) */
if (it->it_op & IT_CREAT)
return LCK_PW;
- else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP))
+ else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP |
+ IT_CHDIR))
return LCK_PR;
LBUG();
EXPORT_SYMBOL(it_open_error);
/* this must be called on a lockh that is known to have a referenced lock */
-void mdc_set_lock_data(__u64 *l, void *data)
+int mdc_set_lock_data(struct obd_export *exp, __u64 *l, void *data)
{
struct ldlm_lock *lock;
struct lustre_handle *lockh = (struct lustre_handle *)l;
if (!*l) {
EXIT;
- return;
+ return 0;
}
lock = ldlm_handle2lock(lockh);
LDLM_LOCK_PUT(lock);
EXIT;
+ return 0;
}
EXPORT_SYMBOL(mdc_set_lock_data);
return 0;
}
-
+#if CONFIG_SNAPFS
+int mdc_set_clone_info(struct obd_export *exp, struct lustre_msg *msg,
+ int offset)
+{
+ struct client_obd *cli_obd = &exp->exp_obd->u.cli;
+ struct clonefs_info *cl_info;
+ ENTRY;
+
+ if (cli_obd->cl_clone_info) {
+ cl_info = (struct clonefs_info *)lustre_msg_buf(msg, offset,
+ sizeof (*cl_info));
+ memcpy(cl_info, cli_obd->cl_clone_info, sizeof(*cl_info));
+ }
+ RETURN(0);
+}
+#endif
/* We always reserve enough space in the reply packet for a stripe MD, because
* we don't know in advance the file type. */
lit->opc = (__u64)it->it_op;
/* pack the intended request */
- mdc_open_pack(req, 2, data, it->it_create_mode, 0,
+ mdc_open_pack(req->rq_reqmsg, 2, data, it->it_create_mode, 0,
it->it_flags, lmm, lmmsize);
/* get ready for the reply */
reply_buffers = 3;
req->rq_replen = lustre_msg_size(3, repsize);
- } else if (it->it_op & IT_UNLINK) {
- size[2] = sizeof(struct mds_rec_unlink);
- size[3] = data->namelen + 1;
- req = ptlrpc_prep_req(class_exp2cliimp(exp), LDLM_ENQUEUE, 4,
- size, NULL);
- if (!req)
- RETURN(-ENOMEM);
-
- /* pack the intent */
- lit = lustre_msg_buf(req->rq_reqmsg, 1, sizeof (*lit));
- lit->opc = (__u64)it->it_op;
-
- /* pack the intended request */
- mdc_unlink_pack(req, 2, data);
- /* get ready for the reply */
- reply_buffers = 4;
- req->rq_replen = lustre_msg_size(4, repsize);
- } else if (it->it_op & (IT_GETATTR | IT_LOOKUP)) {
+ } else if (it->it_op & (IT_GETATTR | IT_LOOKUP | IT_CHDIR)) {
int valid = OBD_MD_FLNOTOBD | OBD_MD_FLEASIZE;
size[2] = sizeof(struct mds_body);
size[3] = data->namelen + 1;
if (it->it_op & IT_GETATTR)
policy.l_inodebits.bits = MDS_INODELOCK_UPDATE;
-
+#if CONFIG_SNAPFS
+ size[4] = sizeof(struct clonefs_info);
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LDLM_ENQUEUE, 5,
+ size, NULL);
+#else
req = ptlrpc_prep_req(class_exp2cliimp(exp), LDLM_ENQUEUE, 4,
size, NULL);
+
+#endif
if (!req)
RETURN(-ENOMEM);
lit->opc = (__u64)it->it_op;
/* pack the intended request */
- mdc_getattr_pack(req, valid, 2, it->it_flags, data);
+ mdc_getattr_pack(req->rq_reqmsg, valid, 2, it->it_flags, data);
+#if CONFIG_SNAPFS
+ mdc_set_clone_info(exp, req->rq_reqmsg, 4);
+#endif
/* get ready for the reply */
reply_buffers = 3;
req->rq_replen = lustre_msg_size(3, repsize);
} else if (it->it_op == IT_READDIR) {
- policy.l_inodebits.bits = MDS_INODELOCK_UPDATE;
+ policy.l_inodebits.bits = MDS_INODELOCK_UPDATE;
req = ptlrpc_prep_req(class_exp2cliimp(exp), LDLM_ENQUEUE, 1,
size, NULL);
+
if (!req)
RETURN(-ENOMEM);
-
/* get ready for the reply */
reply_buffers = 1;
req->rq_replen = lustre_msg_size(1, repsize);
- } else {
+ } else if (it->it_op == IT_UNLINK) {
+ size[2] = sizeof(struct mds_body);
+ policy.l_inodebits.bits = MDS_INODELOCK_UPDATE;
+ req = ptlrpc_prep_req(class_exp2cliimp(exp), LDLM_ENQUEUE, 3,
+ size, NULL);
+ if (!req)
+ RETURN(-ENOMEM);
+
+ /* pack the intended request */
+ mdc_getattr_pack(req->rq_reqmsg, 0, 2, 0, data);
+
+ /* pack the intent */
+ lit = lustre_msg_buf(req->rq_reqmsg, 1, sizeof (*lit));
+ lit->opc = (__u64)it->it_op;
+
+ /* get ready for the reply */
+ reply_buffers = 3;
+ req->rq_replen = lustre_msg_size(3, repsize);
+ } else {
LBUG();
RETURN(-EINVAL);
}
*/
int mdc_intent_lock(struct obd_export *exp, struct ll_uctxt *uctxt,
struct ll_fid *pfid, const char *name, int len,
- void *lmm, int lmmsize,
- struct ll_fid *cfid, struct lookup_intent *it,
- int lookup_flags, struct ptlrpc_request **reqp,
+ void *lmm, int lmmsize, struct ll_fid *cfid,
+ struct lookup_intent *it, int lookup_flags,
+ struct ptlrpc_request **reqp,
ldlm_blocking_callback cb_blocking)
{
struct lustre_handle lockh;
LASSERT(it);
CDEBUG(D_DLMTRACE, "name: %*s in %ld, intent: %s\n", len, name,
- (unsigned long)pfid->id, ldlm_it2str(it->it_op));
+ pfid ? (unsigned long) pfid->id : 0 , ldlm_it2str(it->it_op));
- if (cfid && (it->it_op == IT_LOOKUP || it->it_op == IT_GETATTR)) {
+ if (cfid && (it->it_op == IT_LOOKUP || it->it_op == IT_GETATTR ||
+ it->it_op == IT_CHDIR)) {
/* We could just return 1 immediately, but since we should only
* be called in revalidate_it if we already have a lock, let's
* verify that. */
if (cfid != NULL) {
it_set_disposition(it, DISP_ENQ_COMPLETE);
/* Also: did we find the same inode? */
- if (memcmp(cfid, &mds_body->fid1, sizeof(*cfid)))
+ /* we have to compare all the fields but type, because
+ * MDS can return mds/ino/generation triple if inode
+ * lives on another MDS -bzzz */
+ if (cfid->generation != mds_body->fid1.generation ||
+ cfid->id != mds_body->fid1.id ||
+ cfid->mds != mds_body->fid1.mds)
RETURN(-ESTALE);
}
} else if (it->it_op == IT_OPEN) {
LASSERT(!it_disposition(it, DISP_OPEN_CREATE));
} else {
- LASSERT(it->it_op & (IT_GETATTR | IT_LOOKUP));
+ LASSERT(it->it_op & (IT_GETATTR | IT_LOOKUP | IT_CHDIR));
}
/* If we already have a matching lock, then cancel the new
git://git.whamcloud.com / fs / lustre-release.git / blobdiff