LU_KEY_FINI(dt_global, struct dt_thread_info);
struct lu_context_key dt_key = {
- .lct_tags = LCT_MD_THREAD | LCT_DT_THREAD | LCT_MG_THREAD | LCT_LOCAL,
- .lct_init = dt_global_key_init,
- .lct_fini = dt_global_key_fini
+ .lct_tags = LCT_MD_THREAD | LCT_DT_THREAD | LCT_MG_THREAD | LCT_LOCAL,
+ .lct_init = dt_global_key_init,
+ .lct_fini = dt_global_key_fini
};
-/* no lock is necessary to protect the list, because call-backs
+/*
+ * no lock is necessary to protect the list, because call-backs
* are added during system startup. Please refer to "struct dt_device".
*/
void dt_txn_callback_add(struct dt_device *dev, struct dt_txn_callback *cb)
EXPORT_SYMBOL(dt_txn_callback_del);
int dt_txn_hook_start(const struct lu_env *env,
- struct dt_device *dev, struct thandle *th)
+ struct dt_device *dev, struct thandle *th)
{
int rc = 0;
struct dt_txn_callback *cb;
!(cb->dtc_tag & env->le_ctx.lc_tags))
continue;
- /* Usually dt_txn_hook_start is called from bottom device,
+ /*
+ * Usually dt_txn_hook_start is called from bottom device,
* and if the thandle has th_top, then we need use top
- * thandle for the callback in the top thandle layer */
+ * thandle for the callback in the top thandle layer
+ */
if (th->th_top != NULL)
dtc_th = th->th_top;
int dt_txn_hook_stop(const struct lu_env *env, struct thandle *th)
{
- struct dt_device *dev = th->th_dev;
+ struct dt_device *dev = th->th_dev;
struct dt_txn_callback *cb;
- int rc = 0;
+ int rc = 0;
if (th->th_local)
return 0;
!(cb->dtc_tag & env->le_ctx.lc_tags))
continue;
- /* Usually dt_txn_hook_stop is called from bottom device,
+ /*
+ * Usually dt_txn_hook_stop is called from bottom device,
* and if the thandle has th_top, then we need use top
- * thandle for the callback in the top thandle layer */
+ * thandle for the callback in the top thandle layer
+ */
if (th->th_top != NULL)
dtc_th = th->th_top;
list_for_each_entry(cb, &th->th_dev->dd_txn_callbacks,
dtc_linkage) {
- /* Right now, the bottom device (OSD) will use this hook
+ /*
+ * Right now, the bottom device (OSD) will use this hook
* commit to notify OSP, so we do not check and replace
- * the thandle to top thandle now */
+ * the thandle to top thandle now
+ */
if (cb->dtc_txn_commit)
cb->dtc_txn_commit(th, cb->dtc_cookie);
}
void dt_device_fini(struct dt_device *dev)
{
- lu_device_fini(&dev->dd_lu_dev);
+ lu_device_fini(&dev->dd_lu_dev);
}
EXPORT_SYMBOL(dt_device_fini);
int dt_object_init(struct dt_object *obj,
- struct lu_object_header *h, struct lu_device *d)
+ struct lu_object_header *h, struct lu_device *d)
{
- return lu_object_init(&obj->do_lu, h, d);
+ return lu_object_init(&obj->do_lu, h, d);
}
EXPORT_SYMBOL(dt_object_init);
void dt_object_fini(struct dt_object *obj)
{
- lu_object_fini(&obj->do_lu);
+ lu_object_fini(&obj->do_lu);
}
EXPORT_SYMBOL(dt_object_fini);
int dt_try_as_dir(const struct lu_env *env, struct dt_object *obj)
{
- if (obj->do_index_ops == NULL)
- obj->do_ops->do_index_try(env, obj, &dt_directory_features);
- return obj->do_index_ops != NULL;
+ if (obj->do_index_ops == NULL)
+ obj->do_ops->do_index_try(env, obj, &dt_directory_features);
+ return obj->do_index_ops != NULL;
}
EXPORT_SYMBOL(dt_try_as_dir);
enum dt_format_type dt_mode_to_dft(__u32 mode)
{
- enum dt_format_type result;
-
- switch (mode & S_IFMT) {
- case S_IFDIR:
- result = DFT_DIR;
- break;
- case S_IFREG:
- result = DFT_REGULAR;
- break;
- case S_IFLNK:
- result = DFT_SYM;
- break;
- case S_IFCHR:
- case S_IFBLK:
- case S_IFIFO:
- case S_IFSOCK:
- result = DFT_NODE;
- break;
- default:
+ enum dt_format_type result;
+
+ switch (mode & S_IFMT) {
+ case S_IFDIR:
+ result = DFT_DIR;
+ break;
+ case S_IFREG:
+ result = DFT_REGULAR;
+ break;
+ case S_IFLNK:
+ result = DFT_SYM;
+ break;
+ case S_IFCHR:
+ case S_IFBLK:
+ case S_IFIFO:
+ case S_IFSOCK:
+ result = DFT_NODE;
+ break;
+ default:
LASSERTF(0, "invalid mode %o\n", mode);
result = 0; /* Just for satisfying compiler. */
break;
}
EXPORT_SYMBOL(dt_lookup_dir);
-/* this differs from dt_locate by top_dev as parameter
- * but not one from lu_site */
+/*
+ * this differs from dt_locate by top_dev as parameter
+ * but not one from lu_site
+ */
struct dt_object *dt_locate_at(const struct lu_env *env,
struct dt_device *dev,
const struct lu_fid *fid,
* path component to \a entry_func.
*/
int dt_path_parser(const struct lu_env *env,
- char *path, dt_entry_func_t entry_func,
- void *data)
+ char *path, dt_entry_func_t entry_func,
+ void *data)
{
- char *e;
- int rc = 0;
-
- while (1) {
- e = strsep(&path, "/");
- if (e == NULL)
- break;
-
- if (e[0] == 0) {
- if (!path || path[0] == '\0')
- break;
- continue;
- }
- rc = entry_func(env, e, data);
- if (rc)
- break;
- }
-
- return rc;
+ char *e;
+ int rc = 0;
+
+ while (1) {
+ e = strsep(&path, "/");
+ if (e == NULL)
+ break;
+
+ if (e[0] == 0) {
+ if (!path || path[0] == '\0')
+ break;
+ continue;
+ }
+ rc = entry_func(env, e, data);
+ if (rc)
+ break;
+ }
+
+ return rc;
}
struct dt_object *
const char *path, struct lu_fid *fid)
{
struct dt_thread_info *info = dt_info(env);
- struct dt_find_hint *dfh = &info->dti_dfh;
- struct dt_object *obj;
- int result;
+ struct dt_find_hint *dfh = &info->dti_dfh;
+ struct dt_object *obj;
+ int result;
- dfh->dfh_dt = dt;
- dfh->dfh_fid = fid;
+ dfh->dfh_dt = dt;
+ dfh->dfh_fid = fid;
strlcpy(info->dti_buf, path, sizeof(info->dti_buf));
- result = dt->dd_ops->dt_root_get(env, dt, fid);
- if (result == 0) {
- obj = dt_locate(env, dt, fid);
- if (!IS_ERR(obj)) {
- dfh->dfh_o = obj;
+ result = dt->dd_ops->dt_root_get(env, dt, fid);
+ if (result == 0) {
+ obj = dt_locate(env, dt, fid);
+ if (!IS_ERR(obj)) {
+ dfh->dfh_o = obj;
result = dt_path_parser(env, info->dti_buf,
dt_find_entry, dfh);
- if (result != 0)
- obj = ERR_PTR(result);
- else
- obj = dfh->dfh_o;
- }
- } else {
- obj = ERR_PTR(result);
- }
- return obj;
+ if (result != 0)
+ obj = ERR_PTR(result);
+ else
+ obj = dfh->dfh_o;
+ }
+ } else {
+ obj = ERR_PTR(result);
+ }
+ return obj;
}
static struct dt_object *dt_reg_open(const struct lu_env *env,
- struct dt_device *dt,
- struct dt_object *p,
- const char *name,
- struct lu_fid *fid)
+ struct dt_device *dt,
+ struct dt_object *p,
+ const char *name,
+ struct lu_fid *fid)
{
- struct dt_object *o;
- int result;
+ struct dt_object *o;
+ int result;
- result = dt_lookup_dir(env, p, name, fid);
- if (result == 0){
- o = dt_locate(env, dt, fid);
- }
- else
- o = ERR_PTR(result);
+ result = dt_lookup_dir(env, p, name, fid);
+ if (result == 0)
+ o = dt_locate(env, dt, fid);
+ else
+ o = ERR_PTR(result);
- return o;
+ return o;
}
/**
}
struct dt_object *dt_find_or_create(const struct lu_env *env,
- struct dt_device *dt,
- const struct lu_fid *fid,
- struct dt_object_format *dof,
- struct lu_attr *at)
+ struct dt_device *dt,
+ const struct lu_fid *fid,
+ struct dt_object_format *dof,
+ struct lu_attr *at)
{
- struct dt_object *dto;
- struct thandle *th;
- int rc;
+ struct dt_object *dto;
+ struct thandle *th;
+ int rc;
- ENTRY;
+ ENTRY;
- dto = dt_locate(env, dt, fid);
- if (IS_ERR(dto))
- RETURN(dto);
+ dto = dt_locate(env, dt, fid);
+ if (IS_ERR(dto))
+ RETURN(dto);
- LASSERT(dto != NULL);
- if (dt_object_exists(dto))
- RETURN(dto);
+ LASSERT(dto != NULL);
+ if (dt_object_exists(dto))
+ RETURN(dto);
- th = dt_trans_create(env, dt);
- if (IS_ERR(th))
- GOTO(out, rc = PTR_ERR(th));
+ th = dt_trans_create(env, dt);
+ if (IS_ERR(th))
+ GOTO(out, rc = PTR_ERR(th));
- rc = dt_declare_create(env, dto, at, NULL, dof, th);
- if (rc)
- GOTO(trans_stop, rc);
+ rc = dt_declare_create(env, dto, at, NULL, dof, th);
+ if (rc)
+ GOTO(trans_stop, rc);
- rc = dt_trans_start_local(env, dt, th);
- if (rc)
- GOTO(trans_stop, rc);
+ rc = dt_trans_start_local(env, dt, th);
+ if (rc)
+ GOTO(trans_stop, rc);
- dt_write_lock(env, dto, 0);
- if (dt_object_exists(dto))
- GOTO(unlock, rc = 0);
+ dt_write_lock(env, dto, 0);
+ if (dt_object_exists(dto))
+ GOTO(unlock, rc = 0);
- CDEBUG(D_OTHER, "create new object "DFID"\n", PFID(fid));
+ CDEBUG(D_OTHER, "create new object "DFID"\n", PFID(fid));
- rc = dt_create(env, dto, at, NULL, dof, th);
- if (rc)
+ rc = dt_create(env, dto, at, NULL, dof, th);
+ if (rc)
GOTO(unlock, rc);
- LASSERT(dt_object_exists(dto));
+ LASSERT(dt_object_exists(dto));
unlock:
dt_write_unlock(env, dto);
trans_stop:
/* dt class init function. */
int dt_global_init(void)
{
- int result;
+ int result;
- LU_CONTEXT_KEY_INIT(&dt_key);
- result = lu_context_key_register(&dt_key);
- return result;
+ LU_CONTEXT_KEY_INIT(&dt_key);
+ result = lu_context_key_register(&dt_key);
+ return result;
}
void dt_global_fini(void)
{
- lu_context_key_degister(&dt_key);
+ lu_context_key_degister(&dt_key);
}
/**
* \retval -ve errno on failure
*/
int dt_read(const struct lu_env *env, struct dt_object *dt,
- struct lu_buf *buf, loff_t *pos)
+ struct lu_buf *buf, loff_t *pos)
{
LASSERTF(dt != NULL, "dt is NULL when we want to read record\n");
return dt->do_body_ops->dbo_read(env, dt, buf, pos);
EXPORT_SYMBOL(dt_record_read);
int dt_record_write(const struct lu_env *env, struct dt_object *dt,
- const struct lu_buf *buf, loff_t *pos, struct thandle *th)
+ const struct lu_buf *buf, loff_t *pos, struct thandle *th)
{
ssize_t size;
EXPORT_SYMBOL(dt_record_write);
int dt_declare_version_set(const struct lu_env *env, struct dt_object *o,
- struct thandle *th)
+ struct thandle *th)
{
- struct lu_buf vbuf;
- char *xname = XATTR_NAME_VERSION;
+ struct lu_buf vbuf;
+ char *xname = XATTR_NAME_VERSION;
- LASSERT(o);
- vbuf.lb_buf = NULL;
- vbuf.lb_len = sizeof(dt_obj_version_t);
- return dt_declare_xattr_set(env, o, &vbuf, xname, 0, th);
+ LASSERT(o);
+ vbuf.lb_buf = NULL;
+ vbuf.lb_len = sizeof(dt_obj_version_t);
+ return dt_declare_xattr_set(env, o, &vbuf, xname, 0, th);
}
EXPORT_SYMBOL(dt_declare_version_set);
void dt_version_set(const struct lu_env *env, struct dt_object *o,
- dt_obj_version_t version, struct thandle *th)
+ dt_obj_version_t version, struct thandle *th)
{
- struct lu_buf vbuf;
- char *xname = XATTR_NAME_VERSION;
- int rc;
+ struct lu_buf vbuf;
+ char *xname = XATTR_NAME_VERSION;
+ int rc;
- LASSERT(o);
- vbuf.lb_buf = &version;
- vbuf.lb_len = sizeof(version);
+ LASSERT(o);
+ vbuf.lb_buf = &version;
+ vbuf.lb_len = sizeof(version);
rc = dt_xattr_set(env, o, &vbuf, xname, 0, th);
- if (rc < 0)
- CDEBUG(D_INODE, "Can't set version, rc %d\n", rc);
- return;
+ if (rc < 0)
+ CDEBUG(D_INODE, "Can't set version, rc %d\n", rc);
+ return;
}
EXPORT_SYMBOL(dt_version_set);
dt_obj_version_t dt_version_get(const struct lu_env *env, struct dt_object *o)
{
- struct lu_buf vbuf;
- char *xname = XATTR_NAME_VERSION;
- dt_obj_version_t version;
- int rc;
-
- LASSERT(o);
- vbuf.lb_buf = &version;
- vbuf.lb_len = sizeof(version);
+ struct lu_buf vbuf;
+ char *xname = XATTR_NAME_VERSION;
+ dt_obj_version_t version;
+ int rc;
+
+ LASSERT(o);
+ vbuf.lb_buf = &version;
+ vbuf.lb_len = sizeof(version);
rc = dt_xattr_get(env, o, &vbuf, xname);
- if (rc != sizeof(version)) {
- CDEBUG(D_INODE, "Can't get version, rc %d\n", rc);
- version = 0;
- }
- return version;
+ if (rc != sizeof(version)) {
+ CDEBUG(D_INODE, "Can't get version, rc %d\n", rc);
+ version = 0;
+ }
+ return version;
}
EXPORT_SYMBOL(dt_version_get);
};
EXPORT_SYMBOL(dt_nodemap_features);
-/* helper function returning what dt_index_features structure should be used
- * based on the FID sequence. This is used by OBD_IDX_READ RPC */
+/*
+ * helper function returning what dt_index_features structure should be used
+ * based on the FID sequence. This is used by OBD_IDX_READ RPC
+ */
static inline const struct dt_index_features *dt_index_feat_select(__u64 seq,
__u32 mode)
{
size_t nob, const struct dt_it_ops *iops,
struct dt_it *it, __u32 attr, void *arg)
{
- struct idx_info *ii = (struct idx_info *)arg;
- struct lu_idxpage *lip = &lp->lp_idx;
- char *entry;
- size_t size;
- int rc;
+ struct idx_info *ii = (struct idx_info *)arg;
+ struct lu_idxpage *lip = &lp->lp_idx;
+ char *entry;
+ size_t size;
+ int rc;
ENTRY;
if (nob < LIP_HDR_SIZE)
entry = lip->lip_entries;
do {
- char *tmp_entry = entry;
- struct dt_key *key;
- __u64 hash;
- __u16 keysize;
- __u16 recsize;
+ char *tmp_entry = entry;
+ struct dt_key *key;
+ __u64 hash;
+ __u16 keysize;
+ __u16 recsize;
/* fetch 64-bit hash value */
hash = iops->store(env, it);
}
if (!(ii->ii_flags & II_FL_NOHASH)) {
- /* client wants to the 64-bit hash value associated with
- * each record */
+ /*
+ * client wants to the 64-bit hash value associated
+ * with each record
+ */
memcpy(tmp_entry, &hash, sizeof(hash));
tmp_entry += sizeof(hash);
}
const struct lu_rdpg *rdpg, dt_index_page_build_t filler,
void *arg)
{
- struct dt_it *it;
- const struct dt_it_ops *iops;
- size_t pageidx, nob, nlupgs = 0;
- int rc;
+ struct dt_it *it;
+ const struct dt_it_ops *iops;
+ size_t pageidx, nob, nlupgs = 0;
+ int rc;
ENTRY;
LASSERT(rdpg->rp_pages != NULL);
GOTO(out, rc);
}
- /* Fill containers one after the other. There might be multiple
+ /*
+ * Fill containers one after the other. There might be multiple
* containers per physical page.
*
* At this point and across for-loop:
* rc == 0 -> ok, proceed.
* rc > 0 -> end of index.
- * rc < 0 -> error. */
+ * rc < 0 -> error.
+ */
for (pageidx = 0; rc == 0 && nob > 0; pageidx++) {
union lu_page *lp;
int i;
int rc;
ENTRY;
- /* rp_count shouldn't be null and should be a multiple of the container
- * size */
+ /*
+ * rp_count shouldn't be null and should be a multiple of the container
+ * size
+ */
if (rdpg->rp_count == 0 || (rdpg->rp_count & (LU_PAGE_SIZE - 1)) != 0)
RETURN(-EFAULT);
return rc;
}
- /* No need to register debugfs if no enteries. This allows us to
+ /*
+ * No need to register debugfs if no enteries. This allows us to
* choose between using dt_device or obd_device for debugfs.
*/
if (!list)
git://git.whamcloud.com / fs / lustre-release.git / commitdiff