}
/* lock types */
-typedef enum {
+enum ldlm_mode {
LCK_MINMODE = 0,
LCK_EX = 1,
LCK_PW = 2,
LCK_GROUP = 64,
LCK_COS = 128,
LCK_MAXMODE
-} ldlm_mode_t;
+};
#define LCK_MODE_NUM 8
-typedef enum {
+enum ldlm_type {
LDLM_PLAIN = 10,
LDLM_EXTENT = 11,
LDLM_FLOCK = 12,
LDLM_IBITS = 13,
LDLM_MAX_TYPE
-} ldlm_type_t;
+};
#define LDLM_MIN_TYPE LDLM_PLAIN
void lustre_swab_ldlm_intent(struct ldlm_intent *i);
struct ldlm_resource_desc {
- ldlm_type_t lr_type;
+ enum ldlm_type lr_type;
__u32 lr_padding; /* also fix lustre_swab_ldlm_resource_desc */
struct ldlm_res_id lr_name;
};
struct ldlm_lock_desc {
struct ldlm_resource_desc l_resource;
- ldlm_mode_t l_req_mode;
- ldlm_mode_t l_granted_mode;
+ enum ldlm_mode l_req_mode;
+ enum ldlm_mode l_granted_mode;
ldlm_wire_policy_data_t l_policy_data;
};
#define LCK_COMPAT_COS (LCK_COS)
/** @} Lock Compatibility Matrix */
-extern ldlm_mode_t lck_compat_array[];
+extern enum ldlm_mode lck_compat_array[];
-static inline void lockmode_verify(ldlm_mode_t mode)
+static inline void lockmode_verify(enum ldlm_mode mode)
{
LASSERT(mode > LCK_MINMODE && mode < LCK_MAXMODE);
}
-static inline int lockmode_compat(ldlm_mode_t exist_mode, ldlm_mode_t new_mode)
+static inline int lockmode_compat(enum ldlm_mode exist_mode,
+ enum ldlm_mode new_mode)
{
return (lck_compat_array[exist_mode] & new_mode);
}
struct ldlm_interval_tree {
/** Tree size. */
int lit_size;
- ldlm_mode_t lit_mode; /* lock mode */
+ enum ldlm_mode lit_mode; /* lock mode */
struct interval_node *lit_root; /* actual ldlm_interval */
};
struct ldlm_inodebits l_inodebits;
} ldlm_policy_data_t;
-void ldlm_convert_policy_to_local(struct obd_export *exp, ldlm_type_t type,
+void ldlm_convert_policy_to_local(struct obd_export *exp, enum ldlm_type type,
const ldlm_wire_policy_data_t *wpolicy,
ldlm_policy_data_t *lpolicy);
* Requested mode.
* Protected by lr_lock.
*/
- ldlm_mode_t l_req_mode;
+ enum ldlm_mode l_req_mode;
/**
* Granted mode, also protected by lr_lock.
*/
- ldlm_mode_t l_granted_mode;
+ enum ldlm_mode l_granted_mode;
/** Lock completion handler pointer. Called when lock is granted. */
ldlm_completion_callback l_completion_ast;
/**
/** @} */
/** Type of locks this resource can hold. Only one type per resource. */
- ldlm_type_t lr_type; /* LDLM_{PLAIN,EXTENT,FLOCK,IBITS} */
+ enum ldlm_type lr_type; /* LDLM_{PLAIN,EXTENT,FLOCK,IBITS} */
/** Resource name */
struct ldlm_res_id lr_name;
void ldlm_lock_fail_match_locked(struct ldlm_lock *lock);
void ldlm_lock_allow_match(struct ldlm_lock *lock);
void ldlm_lock_allow_match_locked(struct ldlm_lock *lock);
-ldlm_mode_t ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
- const struct ldlm_res_id *, ldlm_type_t type,
- ldlm_policy_data_t *, ldlm_mode_t mode,
- struct lustre_handle *, int unref);
-ldlm_mode_t ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
- __u64 *bits);
+enum ldlm_mode ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
+ const struct ldlm_res_id *,
+ enum ldlm_type type, ldlm_policy_data_t *,
+ enum ldlm_mode mode, struct lustre_handle *,
+ int unref);
+enum ldlm_mode ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
+ __u64 *bits);
void ldlm_lock_cancel(struct ldlm_lock *lock);
void ldlm_lock_dump_handle(int level, struct lustre_handle *);
void ldlm_unlink_lock_skiplist(struct ldlm_lock *req);
struct ldlm_resource *ldlm_resource_get(struct ldlm_namespace *ns,
struct ldlm_resource *parent,
const struct ldlm_res_id *,
- ldlm_type_t type, int create);
+ enum ldlm_type type, int create);
int ldlm_resource_putref(struct ldlm_resource *res);
void ldlm_resource_add_lock(struct ldlm_resource *res,
struct list_head *head,
struct list_head *cancels, int count);
int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
- ldlm_type_t type, __u8 with_policy, ldlm_mode_t mode,
+ enum ldlm_type type, __u8 with_policy,
+ enum ldlm_mode mode,
__u64 *flags, void *lvb, __u32 lvb_len,
struct lustre_handle *lockh, int rc);
int ldlm_cli_update_pool(struct ptlrpc_request *req);
int ldlm_cli_cancel_unused_resource(struct ldlm_namespace *ns,
const struct ldlm_res_id *res_id,
ldlm_policy_data_t *policy,
- ldlm_mode_t mode,
+ enum ldlm_mode mode,
ldlm_cancel_flags_t flags,
void *opaque);
int ldlm_cancel_resource_local(struct ldlm_resource *res,
struct list_head *cancels,
ldlm_policy_data_t *policy,
- ldlm_mode_t mode, __u64 lock_flags,
+ enum ldlm_mode mode, __u64 lock_flags,
ldlm_cancel_flags_t cancel_flags, void *opaque);
int ldlm_cli_cancel_list_local(struct list_head *cancels, int count,
ldlm_cancel_flags_t flags);
/** Handles of locks awaiting client reply ACK */
struct lustre_handle rs_locks[RS_MAX_LOCKS];
/** Lock modes of locks in \a rs_locks */
- ldlm_mode_t rs_modes[RS_MAX_LOCKS];
+ enum ldlm_mode rs_modes[RS_MAX_LOCKS];
};
struct ptlrpc_thread;
struct obd_client_handle *);
int (*set_lock_data)(struct obd_export *, __u64 *, void *, __u64 *);
- ldlm_mode_t (*lock_match)(struct obd_export *, __u64,
- const struct lu_fid *, ldlm_type_t,
- ldlm_policy_data_t *, ldlm_mode_t,
- struct lustre_handle *);
+ enum ldlm_mode (*lock_match)(struct obd_export *, __u64,
+ const struct lu_fid *, enum ldlm_type,
+ ldlm_policy_data_t *, enum ldlm_mode,
+ struct lustre_handle *);
int (*cancel_unused)(struct obd_export *, const struct lu_fid *,
- ldlm_policy_data_t *, ldlm_mode_t,
+ ldlm_policy_data_t *, enum ldlm_mode,
ldlm_cancel_flags_t flags, void *opaque);
int (*get_remote_perm)(struct obd_export *, const struct lu_fid *,
static inline int md_cancel_unused(struct obd_export *exp,
const struct lu_fid *fid,
ldlm_policy_data_t *policy,
- ldlm_mode_t mode,
+ enum ldlm_mode mode,
ldlm_cancel_flags_t flags,
void *opaque)
{
return rc;
}
-static inline ldlm_mode_t md_lock_match(struct obd_export *exp, __u64 flags,
- const struct lu_fid *fid,
- ldlm_type_t type,
- ldlm_policy_data_t *policy,
- ldlm_mode_t mode,
- struct lustre_handle *lockh)
+static inline enum ldlm_mode md_lock_match(struct obd_export *exp, __u64 flags,
+ const struct lu_fid *fid,
+ enum ldlm_type type,
+ ldlm_policy_data_t *policy,
+ enum ldlm_mode mode,
+ struct lustre_handle *lockh)
{
EXP_CHECK_MD_OP(exp, lock_match);
EXP_MD_COUNTER_INCREMENT(exp, lock_match);
return list_empty(&n->li_group) ? n : NULL;
}
-static inline int lock_mode_to_index(ldlm_mode_t mode)
+static inline int lock_mode_to_index(enum ldlm_mode mode)
{
int index;
}
static inline void
-ldlm_flock_destroy(struct ldlm_lock *lock, ldlm_mode_t mode, __u64 flags)
+ldlm_flock_destroy(struct ldlm_lock *lock, enum ldlm_mode mode, __u64 flags)
{
LDLM_DEBUG(lock, "ldlm_flock_destroy(mode: %d, flags: 0x%llx)",
mode, flags);
struct ldlm_lock *lock = NULL;
struct ldlm_lock *new = req;
struct ldlm_lock *new2 = NULL;
- ldlm_mode_t mode = req->l_req_mode;
+ enum ldlm_mode mode = req->l_req_mode;
int added = (mode == LCK_NL);
int overlaps = 0;
int splitted = 0;
enum req_location loc, void *data, int size);
struct ldlm_lock *
ldlm_lock_create(struct ldlm_namespace *ns, const struct ldlm_res_id *,
- ldlm_type_t type, ldlm_mode_t,
+ enum ldlm_type type, enum ldlm_mode mode,
const struct ldlm_callback_suite *cbs,
void *data, __u32 lvb_len, enum lvb_type lvb_type);
ldlm_error_t ldlm_lock_enqueue(struct ldlm_namespace *, struct ldlm_lock **,
}
EXPORT_SYMBOL(target_send_reply);
-ldlm_mode_t lck_compat_array[] = {
+enum ldlm_mode lck_compat_array[] = {
[LCK_EX] = LCK_COMPAT_EX,
[LCK_PW] = LCK_COMPAT_PW,
[LCK_PR] = LCK_COMPAT_PR,
/**
* Converts lock policy from local format to on the wire lock_desc format
*/
-static void ldlm_convert_policy_to_wire(ldlm_type_t type,
+static void ldlm_convert_policy_to_wire(enum ldlm_type type,
const ldlm_policy_data_t *lpolicy,
ldlm_wire_policy_data_t *wpolicy)
{
/**
* Converts lock policy from on the wire lock_desc format to local format
*/
-void ldlm_convert_policy_to_local(struct obd_export *exp, ldlm_type_t type,
+void ldlm_convert_policy_to_local(struct obd_export *exp, enum ldlm_type type,
const ldlm_wire_policy_data_t *wpolicy,
ldlm_policy_data_t *lpolicy)
{
* comment above ldlm_lock_match
*/
static struct ldlm_lock *search_queue(struct list_head *queue,
- ldlm_mode_t *mode,
+ enum ldlm_mode *mode,
ldlm_policy_data_t *policy,
struct ldlm_lock *old_lock,
__u64 flags, int unref)
struct list_head *tmp;
list_for_each(tmp, queue) {
- ldlm_mode_t match;
+ enum ldlm_mode match;
lock = list_entry(tmp, struct ldlm_lock, l_res_link);
* keep caller code unchanged), the context failure will be discovered by
* caller sometime later.
*/
-ldlm_mode_t ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
- const struct ldlm_res_id *res_id, ldlm_type_t type,
- ldlm_policy_data_t *policy, ldlm_mode_t mode,
- struct lustre_handle *lockh, int unref)
+enum ldlm_mode ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags,
+ const struct ldlm_res_id *res_id,
+ enum ldlm_type type,
+ ldlm_policy_data_t *policy,
+ enum ldlm_mode mode,
+ struct lustre_handle *lockh, int unref)
{
struct ldlm_resource *res;
struct ldlm_lock *lock, *old_lock = NULL;
}
EXPORT_SYMBOL(ldlm_lock_match);
-ldlm_mode_t ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
- __u64 *bits)
+enum ldlm_mode ldlm_revalidate_lock_handle(struct lustre_handle *lockh,
+ __u64 *bits)
{
struct ldlm_lock *lock;
- ldlm_mode_t mode = 0;
+ enum ldlm_mode mode = 0;
lock = ldlm_handle2lock(lockh);
if (lock) {
*/
struct ldlm_lock *ldlm_lock_create(struct ldlm_namespace *ns,
const struct ldlm_res_id *res_id,
- ldlm_type_t type,
- ldlm_mode_t mode,
+ enum ldlm_type type,
+ enum ldlm_mode mode,
const struct ldlm_callback_suite *cbs,
void *data, __u32 lvb_len,
enum lvb_type lvb_type)
* Called after receiving reply from server.
*/
int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
- ldlm_type_t type, __u8 with_policy, ldlm_mode_t mode,
+ enum ldlm_type type, __u8 with_policy,
+ enum ldlm_mode mode,
__u64 *flags, void *lvb, __u32 lvb_len,
struct lustre_handle *lockh, int rc)
{
int ldlm_cancel_resource_local(struct ldlm_resource *res,
struct list_head *cancels,
ldlm_policy_data_t *policy,
- ldlm_mode_t mode, __u64 lock_flags,
+ enum ldlm_mode mode, __u64 lock_flags,
ldlm_cancel_flags_t cancel_flags, void *opaque)
{
struct ldlm_lock *lock;
int ldlm_cli_cancel_unused_resource(struct ldlm_namespace *ns,
const struct ldlm_res_id *res_id,
ldlm_policy_data_t *policy,
- ldlm_mode_t mode,
+ enum ldlm_mode mode,
ldlm_cancel_flags_t flags,
void *opaque)
{
*/
struct ldlm_resource *
ldlm_resource_get(struct ldlm_namespace *ns, struct ldlm_resource *parent,
- const struct ldlm_res_id *name, ldlm_type_t type, int create)
+ const struct ldlm_res_id *name, enum ldlm_type type,
+ int create)
{
struct hlist_node *hnode;
struct ldlm_resource *res;
struct lustre_handle lockh;
struct lu_dirpage *dp;
struct page *page;
- ldlm_mode_t mode;
+ enum ldlm_mode mode;
int rc;
__u64 start = 0;
__u64 end = 0;
* \param l_req_mode [IN] searched lock mode
* \retval boolean, true iff all bits are found
*/
-int ll_have_md_lock(struct inode *inode, __u64 *bits, ldlm_mode_t l_req_mode)
+int ll_have_md_lock(struct inode *inode, __u64 *bits,
+ enum ldlm_mode l_req_mode)
{
struct lustre_handle lockh;
ldlm_policy_data_t policy;
- ldlm_mode_t mode = (l_req_mode == LCK_MINMODE) ?
+ enum ldlm_mode mode = (l_req_mode == LCK_MINMODE) ?
(LCK_CR|LCK_CW|LCK_PR|LCK_PW) : l_req_mode;
struct lu_fid *fid;
__u64 flags;
return *bits == 0;
}
-ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
- struct lustre_handle *lockh, __u64 flags,
- ldlm_mode_t mode)
+enum ldlm_mode ll_take_md_lock(struct inode *inode, __u64 bits,
+ struct lustre_handle *lockh, __u64 flags,
+ enum ldlm_mode mode)
{
ldlm_policy_data_t policy = { .l_inodebits = {bits} };
struct lu_fid *fid;
- ldlm_mode_t rc;
+ enum ldlm_mode rc;
fid = &ll_i2info(inode)->lli_fid;
CDEBUG(D_INFO, "trying to match res "DFID"\n", PFID(fid));
* Apply the layout to the inode. Layout lock is held and will be released
* in this function.
*/
-static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode,
- struct inode *inode, __u32 *gen, bool reconf)
+static int ll_layout_lock_set(struct lustre_handle *lockh, enum ldlm_mode mode,
+ struct inode *inode, __u32 *gen, bool reconf)
{
struct ll_inode_info *lli = ll_i2info(inode);
struct ll_sb_info *sbi = ll_i2sbi(inode);
struct md_op_data *op_data;
struct lookup_intent it;
struct lustre_handle lockh;
- ldlm_mode_t mode;
+ enum ldlm_mode mode;
struct ldlm_enqueue_info einfo = {
.ei_type = LDLM_IBITS,
.ei_mode = LCK_CR,
extern struct file_operations ll_file_operations_noflock;
extern const struct inode_operations ll_file_inode_operations;
int ll_have_md_lock(struct inode *inode, __u64 *bits,
- ldlm_mode_t l_req_mode);
-ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits,
- struct lustre_handle *lockh, __u64 flags,
- ldlm_mode_t mode);
+ enum ldlm_mode l_req_mode);
+enum ldlm_mode ll_take_md_lock(struct inode *inode, __u64 bits,
+ struct lustre_handle *lockh, __u64 flags,
+ enum ldlm_mode mode);
int ll_file_open(struct inode *inode, struct file *file);
int ll_file_release(struct inode *inode, struct file *file);
int ll_glimpse_ioctl(struct ll_sb_info *sbi,
if (exp_connect_som(ll_i2mdexp(inode)) &&
S_ISREG(inode->i_mode)) {
struct lustre_handle lockh;
- ldlm_mode_t mode;
+ enum ldlm_mode mode;
/* As it is possible a blocking ast has been processed
* by this time, we need to check there is an UPDATE
struct lookup_intent *oit,
struct ptlrpc_request **req)
{
- ldlm_mode_t mode;
+ enum ldlm_mode mode;
struct lustre_handle lockh = { 0 };
struct md_op_data *op_data;
struct ll_inode_info *lli = ll_i2info(inode);
NULL)
static int lmv_early_cancel(struct obd_export *exp, struct md_op_data *op_data,
- int op_tgt, ldlm_mode_t mode, int bits, int flag)
+ int op_tgt, enum ldlm_mode mode, int bits,
+ int flag)
{
struct lu_fid *fid = md_op_data_fid(op_data, flag);
struct obd_device *obd = exp->exp_obd;
}
static int lmv_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
- ldlm_policy_data_t *policy, ldlm_mode_t mode,
+ ldlm_policy_data_t *policy, enum ldlm_mode mode,
ldlm_cancel_flags_t flags, void *opaque)
{
struct obd_device *obd = exp->exp_obd;
return rc;
}
-static ldlm_mode_t lmv_lock_match(struct obd_export *exp, __u64 flags,
- const struct lu_fid *fid, ldlm_type_t type,
- ldlm_policy_data_t *policy, ldlm_mode_t mode,
- struct lustre_handle *lockh)
+static enum ldlm_mode lmv_lock_match(struct obd_export *exp, __u64 flags,
+ const struct lu_fid *fid,
+ enum ldlm_type type,
+ ldlm_policy_data_t *policy,
+ enum ldlm_mode mode,
+ struct lustre_handle *lockh)
{
struct obd_device *obd = exp->exp_obd;
struct lmv_obd *lmv = &obd->u.lmv;
- ldlm_mode_t rc;
+ enum ldlm_mode rc;
int i;
CDEBUG(D_INODE, "Lock match for "DFID"\n", PFID(fid));
struct ptlrpc_request **req, __u64 extra_lock_flags);
int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
- struct list_head *cancels, ldlm_mode_t mode,
+ struct list_head *cancels, enum ldlm_mode mode,
__u64 bits);
/* mdc/mdc_request.c */
int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request);
int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
- ldlm_policy_data_t *policy, ldlm_mode_t mode,
+ ldlm_policy_data_t *policy, enum ldlm_mode mode,
ldlm_cancel_flags_t flags, void *opaque);
int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
struct md_enqueue_info *minfo,
struct ldlm_enqueue_info *einfo);
-ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags,
- const struct lu_fid *fid, ldlm_type_t type,
- ldlm_policy_data_t *policy, ldlm_mode_t mode,
- struct lustre_handle *lockh);
+enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
+ const struct lu_fid *fid, enum ldlm_type type,
+ ldlm_policy_data_t *policy, enum ldlm_mode mode,
+ struct lustre_handle *lockh);
static inline int mdc_prep_elc_req(struct obd_export *exp,
struct ptlrpc_request *req, int opc,
return 0;
}
-ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags,
- const struct lu_fid *fid, ldlm_type_t type,
- ldlm_policy_data_t *policy, ldlm_mode_t mode,
- struct lustre_handle *lockh)
+enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
+ const struct lu_fid *fid, enum ldlm_type type,
+ ldlm_policy_data_t *policy, enum ldlm_mode mode,
+ struct lustre_handle *lockh)
{
struct ldlm_res_id res_id;
- ldlm_mode_t rc;
+ enum ldlm_mode rc;
fid_build_reg_res_name(fid, &res_id);
/* LU-4405: Clear bits not supported by server */
int mdc_cancel_unused(struct obd_export *exp,
const struct lu_fid *fid,
ldlm_policy_data_t *policy,
- ldlm_mode_t mode,
+ enum ldlm_mode mode,
ldlm_cancel_flags_t flags,
void *opaque)
{
struct ldlm_res_id res_id;
struct lustre_handle lockh;
ldlm_policy_data_t policy;
- ldlm_mode_t mode;
+ enum ldlm_mode mode;
if (it->d.lustre.it_lock_handle) {
lockh.cookie = it->d.lustre.it_lock_handle;
* found by @fid. Found locks are added into @cancel list. Returns the amount of
* locks added to @cancels list. */
int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
- struct list_head *cancels, ldlm_mode_t mode,
+ struct list_head *cancels, enum ldlm_mode mode,
__u64 bits)
{
struct ldlm_namespace *ns = exp->exp_obd->obd_namespace;
return (struct cl_object *)&obj->oo_cl;
}
-static inline ldlm_mode_t osc_cl_lock2ldlm(enum cl_lock_mode mode)
+static inline enum ldlm_mode osc_cl_lock2ldlm(enum cl_lock_mode mode)
{
LASSERT(mode == CLM_READ || mode == CLM_WRITE || mode == CLM_GROUP);
if (mode == CLM_READ)
return LCK_GROUP;
}
-static inline enum cl_lock_mode osc_ldlm2cl_lock(ldlm_mode_t mode)
+static inline enum cl_lock_mode osc_ldlm2cl_lock(enum ldlm_mode mode)
{
LASSERT(mode == LCK_PR || mode == LCK_PW || mode == LCK_GROUP);
if (mode == LCK_PR)
* locks added to @cancels list. */
static int osc_resource_get_unused(struct obd_export *exp, struct obdo *oa,
struct list_head *cancels,
- ldlm_mode_t mode, __u64 lock_flags)
+ enum ldlm_mode mode, __u64 lock_flags)
{
struct ldlm_namespace *ns = exp->exp_obd->obd_namespace;
struct ldlm_res_id res_id;
struct ptlrpc_request *req = NULL;
int intent = *flags & LDLM_FL_HAS_INTENT;
__u64 match_lvb = (agl != 0 ? 0 : LDLM_FL_LVB_READY);
- ldlm_mode_t mode;
+ enum ldlm_mode mode;
int rc;
/* Filesystem lock extents are extended to page boundaries so that
{
struct obd_device *obd = exp->exp_obd;
__u64 lflags = *flags;
- ldlm_mode_t rc;
+ enum ldlm_mode rc;
if (OBD_FAIL_CHECK(OBD_FAIL_OSC_MATCH))
return -EIO;
struct ldlm_res_id res_id;
ldlm_policy_data_t policy;
struct lustre_handle lockh;
- ldlm_mode_t mode = 0;
+ enum ldlm_mode mode = 0;
struct ptlrpc_request *req;
struct ll_user_fiemap *reply;
char *tmp;