diff --git a/drivers/staging/lustre/lustre/include/linux/lustre_intent.h b/drivers/staging/lustre/lustre/include/linux/lustre_intent.h
index b10ddfa7df29465cdb84613cf790d3b047623387..c491d52d86a238c0f7e0145f95728bc5893735d3 100644
--- a/drivers/staging/lustre/lustre/include/linux/lustre_intent.h
+++ b/drivers/staging/lustre/lustre/include/linux/lustre_intent.h
@@ -52,8 +52,8 @@ struct lustre_intent_data {
struct lookup_intent {
int it_op;
- int it_flags;
int it_create_mode;
+ __u64 it_flags;
union {
struct lustre_intent_data lustre;
} d;
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index 5ca18d01601429e5452bee9b1a839d7ce1df4bd3..e592a0e0f7947646941da3e0c2385980c05d78b9 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -2120,6 +2120,7 @@ extern void lustre_swab_generic_32s (__u32 *val);
#define DISP_ENQ_OPEN_REF 0x00800000
#define DISP_ENQ_CREATE_REF 0x01000000
#define DISP_OPEN_LOCK 0x02000000
+#define DISP_OPEN_LEASE 0x04000000
/* INODE LOCK PARTS */
#define MDS_INODELOCK_LOOKUP 0x000001 /* dentry, mode, owner, group */
@@ -2373,6 +2374,10 @@ extern void lustre_swab_mdt_rec_setattr (struct mdt_rec_setattr *sa);
* hsm restore) */
#define MDS_OPEN_VOLATILE 0400000000000ULL /* File is volatile = created
unlinked */
+#define MDS_OPEN_LEASE 01000000000000ULL /* Open the file and grant lease
+ * delegation, succeed if it's not
+ * being opened with conflict mode.
+ */
/* permission for create non-directory file */
#define MAY_CREATE (1 << 7)
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
index c7bd4473a1d0fab2e38591d814cbb6e34dfaa6fe..9fd1d3ba2a63a82c33a5377a9042affbd9cde137 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h
@@ -245,6 +245,9 @@ struct ost_id {
#define LL_IOC_LMV_GETSTRIPE _IOWR('f', 241, struct lmv_user_md)
#define LL_IOC_REMOVE_ENTRY _IOWR('f', 242, __u64)
+#define LL_IOC_SET_LEASE _IOWR('f', 243, long)
+#define LL_IOC_GET_LEASE _IO('f', 244)
+
#define LL_STATFS_LMV 1
#define LL_STATFS_LOV 2
#define LL_STATFS_NODELAY 4
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
index 8c34d9d4d2587b59d635c1f4bc7604f80f066b91..f8b4ba74968375cff3fdba2249fc7fd1f8615729 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
@@ -35,7 +35,7 @@
#ifndef LDLM_ALL_FLAGS_MASK
/** l_flags bits marked as "all_flags" bits */
-#define LDLM_FL_ALL_FLAGS_MASK 0x007FFFFFC08F132FULL
+#define LDLM_FL_ALL_FLAGS_MASK 0x00FFFFFFC08F132FULL
/** l_flags bits marked as "ast" bits */
#define LDLM_FL_AST_MASK 0x0000000080000000ULL
@@ -53,7 +53,7 @@
#define LDLM_FL_INHERIT_MASK 0x0000000000800000ULL
/** l_flags bits marked as "local_only" bits */
-#define LDLM_FL_LOCAL_ONLY_MASK 0x007FFFFF00000000ULL
+#define LDLM_FL_LOCAL_ONLY_MASK 0x00FFFFFF00000000ULL
/** l_flags bits marked as "on_wire" bits */
#define LDLM_FL_ON_WIRE_MASK 0x00000000C08F132FULL
@@ -358,6 +358,12 @@
#define ldlm_set_ns_srv(_l) LDLM_SET_FLAG(( _l), 1ULL << 54)
#define ldlm_clear_ns_srv(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 54)
+/** Flag whether this lock can be reused. Used by exclusive open. */
+#define LDLM_FL_EXCL 0x0080000000000000ULL /* bit 55 */
+#define ldlm_is_excl(_l) LDLM_TEST_FLAG((_l), 1ULL << 55)
+#define ldlm_set_excl(_l) LDLM_SET_FLAG((_l), 1ULL << 55)
+#define ldlm_clear_excl(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 55)
+
/** test for ldlm_lock flag bit set */
#define LDLM_TEST_FLAG(_l, _b) (((_l)->l_flags & (_b)) != 0)
@@ -414,6 +420,7 @@ static int hf_lustre_ldlm_fl_server_lock = -1;
static int hf_lustre_ldlm_fl_res_locked = -1;
static int hf_lustre_ldlm_fl_waited = -1;
static int hf_lustre_ldlm_fl_ns_srv = -1;
+static int hf_lustre_ldlm_fl_excl = -1;
const value_string lustre_ldlm_flags_vals[] = {
{LDLM_FL_LOCK_CHANGED, "LDLM_FL_LOCK_CHANGED"},
@@ -454,6 +461,7 @@ const value_string lustre_ldlm_flags_vals[] = {
{LDLM_FL_RES_LOCKED, "LDLM_FL_RES_LOCKED"},
{LDLM_FL_WAITED, "LDLM_FL_WAITED"},
{LDLM_FL_NS_SRV, "LDLM_FL_NS_SRV"},
+ {LDLM_FL_EXCL, "LDLM_FL_EXCL"},
{ 0, NULL }
};
#endif /* WIRESHARK_COMPILE */
diff --git a/drivers/staging/lustre/lustre/include/lustre_lib.h b/drivers/staging/lustre/lustre/include/lustre_lib.h
index b6fd03e45bb771554c995ca4c265d02340fa5d1f..609a090484a65a9e9d0b39b90dd598111316e993 100644
--- a/drivers/staging/lustre/lustre/include/lustre_lib.h
+++ b/drivers/staging/lustre/lustre/include/lustre_lib.h
@@ -81,11 +81,12 @@ struct client_obd *client_conn2cli(struct lustre_handle *conn);
struct md_open_data;
struct obd_client_handle {
- struct lustre_handle och_fh;
- struct lu_fid och_fid;
- struct md_open_data *och_mod;
- __u32 och_magic;
- fmode_t och_flags;
+ struct lustre_handle och_fh;
+ struct lu_fid och_fid;
+ struct md_open_data *och_mod;
+ struct lustre_handle och_lease_handle; /* open lock for lease */
+ __u32 och_magic;
+ fmode_t och_flags;
};
#define OBD_CLIENT_HANDLE_MAGIC 0xd15ea5ed
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
index 3900a69742fc5bc84b4b1ba99949a88ac2c99cc3..ef826e90df03b6e0391e8bf4cb9366b7fba2c39c 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
@@ -1129,6 +1129,11 @@ static struct ldlm_lock *search_queue(struct list_head *queue,
if (lock == old_lock)
break;
+ /* Check if this lock can be matched.
+ * Used by LU-2919(exclusive open) for open lease lock */
+ if (ldlm_is_excl(lock))
+ continue;
+
/* llite sometimes wants to match locks that will be
* canceled when their users drop, but we allow it to match
* if it passes in CBPENDING and the lock still has users.
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
index dcc2784031367c0cd5187c2e3891f05be79957cd..1e2c0dd675698d75f73a5e54e287738c0557b5ff 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
@@ -910,7 +910,7 @@ int ldlm_cli_enqueue(struct obd_export *exp, struct ptlrpc_request **reqp,
lock->l_conn_export = exp;
lock->l_export = NULL;
lock->l_blocking_ast = einfo->ei_cb_bl;
- lock->l_flags |= (*flags & LDLM_FL_NO_LRU);
+ lock->l_flags |= (*flags & (LDLM_FL_NO_LRU | LDLM_FL_EXCL));
/* lock not sent to server yet */
@@ -1333,7 +1333,7 @@ int ldlm_cli_cancel(struct lustre_handle *lockh,
}
rc = ldlm_cli_cancel_local(lock);
- if (rc == LDLM_FL_LOCAL_ONLY) {
+ if (rc == LDLM_FL_LOCAL_ONLY || cancel_flags & LCF_LOCAL) {
LDLM_LOCK_RELEASE(lock);
return 0;
}
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 17064b4f61763af171dc6c61068983f28fee0003..971409ed52e7deb677defae0421d51ec41837e12 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -241,6 +241,24 @@ int ll_md_close(struct obd_export *md_exp, struct inode *inode,
if (unlikely(fd->fd_flags & LL_FILE_GROUP_LOCKED))
ll_put_grouplock(inode, file, fd->fd_grouplock.cg_gid);
+ if (fd->fd_lease_och != NULL) {
+ bool lease_broken;
+
+ /* Usually the lease is not released when the
+ * application crashed, we need to release here. */
+ rc = ll_lease_close(fd->fd_lease_och, inode, &lease_broken);
+ CDEBUG(rc ? D_ERROR : D_INODE, "Clean up lease "DFID" %d/%d\n",
+ PFID(&lli->lli_fid), rc, lease_broken);
+
+ fd->fd_lease_och = NULL;
+ }
+
+ if (fd->fd_och != NULL) {
+ rc = ll_close_inode_openhandle(md_exp, inode, fd->fd_och);
+ fd->fd_och = NULL;
+ GOTO(out, rc);
+ }
+
/* Let's see if we have good enough OPEN lock on the file and if
we can skip talking to MDS */
if (file->f_dentry->d_inode) { /* Can this ever be false? */
@@ -277,6 +295,7 @@ int ll_md_close(struct obd_export *md_exp, struct inode *inode,
file, file->f_dentry, file->f_dentry->d_name.name);
}
+out:
LUSTRE_FPRIVATE(file) = NULL;
ll_file_data_put(fd);
ll_capa_close(inode);
@@ -440,6 +459,7 @@ static int ll_och_fill(struct obd_export *md_exp, struct lookup_intent *it,
body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
och->och_fh = body->handle;
och->och_fid = body->fid1;
+ och->och_lease_handle.cookie = it->d.lustre.it_lock_handle;
och->och_magic = OBD_CLIENT_HANDLE_MAGIC;
och->och_flags = it->it_flags;
@@ -471,7 +491,7 @@ int ll_local_open(struct file *file, struct lookup_intent *it,
LUSTRE_FPRIVATE(file) = fd;
ll_readahead_init(inode, &fd->fd_ras);
- fd->fd_omode = it->it_flags;
+ fd->fd_omode = it->it_flags & (FMODE_READ | FMODE_WRITE | FMODE_EXEC);
return 0;
}
@@ -673,6 +693,196 @@ int ll_file_open(struct inode *inode, struct file *file)
return rc;
}
+static int ll_md_blocking_lease_ast(struct ldlm_lock *lock,
+ struct ldlm_lock_desc *desc, void *data, int flag)
+{
+ int rc;
+ struct lustre_handle lockh;
+
+ switch (flag) {
+ case LDLM_CB_BLOCKING:
+ ldlm_lock2handle(lock, &lockh);
+ rc = ldlm_cli_cancel(&lockh, LCF_ASYNC);
+ if (rc < 0) {
+ CDEBUG(D_INODE, "ldlm_cli_cancel: %d\n", rc);
+ return rc;
+ }
+ break;
+ case LDLM_CB_CANCELING:
+ /* do nothing */
+ break;
+ }
+ return 0;
+}
+
+/**
+ * Acquire a lease and open the file.
+ */
+struct obd_client_handle *ll_lease_open(struct inode *inode, struct file *file,
+ fmode_t fmode)
+{
+ struct lookup_intent it = { .it_op = IT_OPEN };
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct md_op_data *op_data;
+ struct ptlrpc_request *req;
+ struct lustre_handle old_handle = { 0 };
+ struct obd_client_handle *och = NULL;
+ int rc;
+ int rc2;
+
+ if (fmode != FMODE_WRITE && fmode != FMODE_READ)
+ return ERR_PTR(-EINVAL);
+
+ if (file != NULL) {
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
+ struct obd_client_handle **och_p;
+ __u64 *och_usecount;
+
+ if (!(fmode & file->f_mode) || (file->f_mode & FMODE_EXEC))
+ return ERR_PTR(-EPERM);
+
+ /* Get the openhandle of the file */
+ rc = -EBUSY;
+ mutex_lock(&lli->lli_och_mutex);
+ if (fd->fd_lease_och != NULL) {
+ mutex_unlock(&lli->lli_och_mutex);
+ return ERR_PTR(rc);
+ }
+
+ if (fd->fd_och == NULL) {
+ if (file->f_mode & FMODE_WRITE) {
+ LASSERT(lli->lli_mds_write_och != NULL);
+ och_p = &lli->lli_mds_write_och;
+ och_usecount = &lli->lli_open_fd_write_count;
+ } else {
+ LASSERT(lli->lli_mds_read_och != NULL);
+ och_p = &lli->lli_mds_read_och;
+ och_usecount = &lli->lli_open_fd_read_count;
+ }
+ if (*och_usecount == 1) {
+ fd->fd_och = *och_p;
+ *och_p = NULL;
+ *och_usecount = 0;
+ rc = 0;
+ }
+ }
+ mutex_unlock(&lli->lli_och_mutex);
+ if (rc < 0) /* more than 1 opener */
+ return ERR_PTR(rc);
+
+ LASSERT(fd->fd_och != NULL);
+ old_handle = fd->fd_och->och_fh;
+ }
+
+ OBD_ALLOC_PTR(och);
+ if (och == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ op_data = ll_prep_md_op_data(NULL, inode, inode, NULL, 0, 0,
+ LUSTRE_OPC_ANY, NULL);
+ if (IS_ERR(op_data))
+ GOTO(out, rc = PTR_ERR(op_data));
+
+ /* To tell the MDT this openhandle is from the same owner */
+ op_data->op_handle = old_handle;
+
+ it.it_flags = fmode | MDS_OPEN_LOCK | MDS_OPEN_BY_FID | MDS_OPEN_LEASE;
+ rc = md_intent_lock(sbi->ll_md_exp, op_data, NULL, 0, &it, 0, &req,
+ ll_md_blocking_lease_ast,
+ /* LDLM_FL_NO_LRU: To not put the lease lock into LRU list, otherwise
+ * it can be cancelled which may mislead applications that the lease is
+ * broken;
+ * LDLM_FL_EXCL: Set this flag so that it won't be matched by normal
+ * open in ll_md_blocking_ast(). Otherwise as ll_md_blocking_lease_ast
+ * doesn't deal with openhandle, so normal openhandle will be leaked. */
+ LDLM_FL_NO_LRU | LDLM_FL_EXCL);
+ ll_finish_md_op_data(op_data);
+ if (req != NULL) {
+ ptlrpc_req_finished(req);
+ it_clear_disposition(&it, DISP_ENQ_COMPLETE);
+ }
+ if (rc < 0)
+ GOTO(out_release_it, rc);
+
+ if (it_disposition(&it, DISP_LOOKUP_NEG))
+ GOTO(out_release_it, rc = -ENOENT);
+
+ rc = it_open_error(DISP_OPEN_OPEN, &it);
+ if (rc)
+ GOTO(out_release_it, rc);
+
+ LASSERT(it_disposition(&it, DISP_ENQ_OPEN_REF));
+ ll_och_fill(sbi->ll_md_exp, &it, och);
+
+ if (!it_disposition(&it, DISP_OPEN_LEASE)) /* old server? */
+ GOTO(out_close, rc = -EOPNOTSUPP);
+
+ /* already get lease, handle lease lock */
+ ll_set_lock_data(sbi->ll_md_exp, inode, &it, NULL);
+ if (it.d.lustre.it_lock_mode == 0 ||
+ it.d.lustre.it_lock_bits != MDS_INODELOCK_OPEN) {
+ /* open lock must return for lease */
+ CERROR(DFID "lease granted but no open lock, %d/%llu.\n",
+ PFID(ll_inode2fid(inode)), it.d.lustre.it_lock_mode,
+ it.d.lustre.it_lock_bits);
+ GOTO(out_close, rc = -EPROTO);
+ }
+
+ ll_intent_release(&it);
+ return och;
+
+out_close:
+ rc2 = ll_close_inode_openhandle(sbi->ll_md_exp, inode, och);
+ if (rc2)
+ CERROR("Close openhandle returned %d\n", rc2);
+
+ /* cancel open lock */
+ if (it.d.lustre.it_lock_mode != 0) {
+ ldlm_lock_decref_and_cancel(&och->och_lease_handle,
+ it.d.lustre.it_lock_mode);
+ it.d.lustre.it_lock_mode = 0;
+ }
+out_release_it:
+ ll_intent_release(&it);
+out:
+ OBD_FREE_PTR(och);
+ return ERR_PTR(rc);
+}
+EXPORT_SYMBOL(ll_lease_open);
+
+/**
+ * Release lease and close the file.
+ * It will check if the lease has ever broken.
+ */
+int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
+ bool *lease_broken)
+{
+ struct ldlm_lock *lock;
+ bool cancelled = true;
+ int rc;
+
+ lock = ldlm_handle2lock(&och->och_lease_handle);
+ if (lock != NULL) {
+ lock_res_and_lock(lock);
+ cancelled = ldlm_is_cancel(lock);
+ unlock_res_and_lock(lock);
+ ldlm_lock_put(lock);
+ }
+
+ CDEBUG(D_INODE, "lease for "DFID" broken? %d\n",
+ PFID(&ll_i2info(inode)->lli_fid), cancelled);
+
+ if (!cancelled)
+ ldlm_cli_cancel(&och->och_lease_handle, 0);
+ if (lease_broken != NULL)
+ *lease_broken = cancelled;
+
+ rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp, inode, och);
+ return rc;
+}
+EXPORT_SYMBOL(ll_lease_close);
+
/* Fills the obdo with the attributes for the lsm */
static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp,
struct obd_capa *capa, struct obdo *obdo,
@@ -2066,6 +2276,91 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
OBD_FREE_PTR(hca);
return rc;
}
+ case LL_IOC_SET_LEASE: {
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct obd_client_handle *och = NULL;
+ bool lease_broken;
+ fmode_t mode = 0;
+
+ switch (arg) {
+ case F_WRLCK:
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EPERM;
+ mode = FMODE_WRITE;
+ break;
+ case F_RDLCK:
+ if (!(file->f_mode & FMODE_READ))
+ return -EPERM;
+ mode = FMODE_READ;
+ break;
+ case F_UNLCK:
+ mutex_lock(&lli->lli_och_mutex);
+ if (fd->fd_lease_och != NULL) {
+ och = fd->fd_lease_och;
+ fd->fd_lease_och = NULL;
+ }
+ mutex_unlock(&lli->lli_och_mutex);
+
+ if (och != NULL) {
+ mode = och->och_flags &
+ (FMODE_READ|FMODE_WRITE);
+ rc = ll_lease_close(och, inode, &lease_broken);
+ if (rc == 0 && lease_broken)
+ mode = 0;
+ } else {
+ rc = -ENOLCK;
+ }
+
+ /* return the type of lease or error */
+ return rc < 0 ? rc : (int)mode;
+ default:
+ return -EINVAL;
+ }
+
+ CDEBUG(D_INODE, "Set lease with mode %d\n", mode);
+
+ /* apply for lease */
+ och = ll_lease_open(inode, file, mode);
+ if (IS_ERR(och))
+ return PTR_ERR(och);
+
+ rc = 0;
+ mutex_lock(&lli->lli_och_mutex);
+ if (fd->fd_lease_och == NULL) {
+ fd->fd_lease_och = och;
+ och = NULL;
+ }
+ mutex_unlock(&lli->lli_och_mutex);
+ if (och != NULL) {
+ /* impossible now that only excl is supported for now */
+ ll_lease_close(och, inode, &lease_broken);
+ rc = -EBUSY;
+ }
+ return rc;
+ }
+ case LL_IOC_GET_LEASE: {
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct ldlm_lock *lock = NULL;
+
+ rc = 0;
+ mutex_lock(&lli->lli_och_mutex);
+ if (fd->fd_lease_och != NULL) {
+ struct obd_client_handle *och = fd->fd_lease_och;
+
+ lock = ldlm_handle2lock(&och->och_lease_handle);
+ if (lock != NULL) {
+ lock_res_and_lock(lock);
+ if (!ldlm_is_cancel(lock))
+ rc = och->och_flags &
+ (FMODE_READ | FMODE_WRITE);
+ unlock_res_and_lock(lock);
+ ldlm_lock_put(lock);
+ }
+ }
+ mutex_unlock(&lli->lli_och_mutex);
+
+ return rc;
+ }
default: {
int err;
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index d37c183109baf8e7c162160b6a25913c1ad9e638..1a13330ac966ebc5c39a4f0c254518ca8369909f 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -608,10 +608,14 @@ extern struct kmem_cache *ll_file_data_slab;
struct lustre_handle;
struct ll_file_data {
struct ll_readahead_state fd_ras;
- int fd_omode;
struct ccc_grouplock fd_grouplock;
__u64 lfd_pos;
__u32 fd_flags;
+ fmode_t fd_omode;
+ /* openhandle if lease exists for this file.
+ * Borrow lli->lli_och_mutex to protect assignment */
+ struct obd_client_handle *fd_lease_och;
+ struct obd_client_handle *fd_och;
struct file *fd_file;
/* Indicate whether need to report failure when close.
* true: failure is known, not report again.
@@ -777,6 +781,11 @@ int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg);
int ll_fid2path(struct inode *inode, void *arg);
int ll_data_version(struct inode *inode, __u64 *data_version, int extent_lock);
+struct obd_client_handle *ll_lease_open(struct inode *inode, struct file *file,
+ fmode_t mode);
+int ll_lease_close(struct obd_client_handle *och, struct inode *inode,
+ bool *lease_broken);
+
/* llite/dcache.c */
int ll_dops_init(struct dentry *de, int block, int init_sa);
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_internal.h b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
index 2aeff0ecec34d662146a842dbf1986da5083f155..b995af6a2782cb4343e042e7ef59e93a07ae502a 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_internal.h
+++ b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
@@ -69,7 +69,7 @@ void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
const void *data, int datalen, __u32 mode, __u32 uid,
__u32 gid, cfs_cap_t capability, __u64 rdev);
void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
- __u32 mode, __u64 rdev, __u32 flags, const void *data,
+ __u32 mode, __u64 rdev, __u64 flags, const void *data,
int datalen);
void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_lib.c b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
index b2de478036795a2b4c3607b474ab5ff397726218..3e7702075bf9a75b5664e5ffeffa78e1eaca90ee 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_lib.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
@@ -174,12 +174,12 @@ void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
}
}
-static __u64 mds_pack_open_flags(__u32 flags, __u32 mode)
+static __u64 mds_pack_open_flags(__u64 flags, __u32 mode)
{
__u64 cr_flags = (flags & (FMODE_READ | FMODE_WRITE |
MDS_OPEN_HAS_EA | MDS_OPEN_HAS_OBJS |
MDS_OPEN_OWNEROVERRIDE | MDS_OPEN_LOCK |
- MDS_OPEN_BY_FID));
+ MDS_OPEN_BY_FID | MDS_OPEN_LEASE));
if (flags & O_CREAT)
cr_flags |= MDS_OPEN_CREAT;
if (flags & O_EXCL)
@@ -207,7 +207,7 @@ static __u64 mds_pack_open_flags(__u32 flags, __u32 mode)
/* packing of MDS records */
void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
- __u32 mode, __u64 rdev, __u32 flags, const void *lmm,
+ __u32 mode, __u64 rdev, __u64 flags, const void *lmm,
int lmmlen)
{
struct mdt_rec_create *rec;
@@ -234,6 +234,7 @@ void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
rec->cr_suppgid2 = op_data->op_suppgids[1];
rec->cr_bias = op_data->op_bias;
rec->cr_umask = current_umask();
+ rec->cr_old_handle = op_data->op_handle;
mdc_pack_capa(req, &RMF_CAPA1, op_data->op_capa1);
/* the next buffer is child capa, which is used for replay,
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
index fb5a9959bf7ac652880a6d16448310cbeef22cd7..eccbab7561fe9dc02b5c638fd03030196cda63d9 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
@@ -75,6 +75,12 @@ 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 +287,21 @@ 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);
@@ -1065,10 +1078,10 @@ 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 +1207,10 @@ 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);