#include "lov_cl_internal.h"
+static inline struct lov_device *lov_object_dev(struct lov_object *obj)
+{
+ return lu2lov_dev(obj->lo_cl.co_lu.lo_dev);
+}
+
/** \addtogroup lov
* @{
*/
*/
struct lov_layout_operations {
- int (*llo_init)(const struct lu_env *env, struct lov_device *dev,
- struct lov_object *lov,
- const struct cl_object_conf *conf,
- union lov_layout_state *state);
+ int (*llo_init)(const struct lu_env *env, struct lov_device *dev,
+ struct lov_object *lov, struct lov_stripe_md *lsm,
+ const struct cl_object_conf *conf,
+ union lov_layout_state *state);
int (*llo_delete)(const struct lu_env *env, struct lov_object *lov,
union lov_layout_state *state);
void (*llo_fini)(const struct lu_env *env, struct lov_object *lov,
static int lov_layout_wait(const struct lu_env *env, struct lov_object *lov);
-struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj)
-{
- struct lu_object *luobj;
- struct lov_stripe_md *lsm = NULL;
-
- if (clobj == NULL)
- return NULL;
-
- luobj = lu_object_locate(&cl_object_header(clobj)->coh_lu,
- &lov_device_type);
- if (luobj != NULL)
- lsm = lov_lsm_addref(lu2lov(luobj));
- return lsm;
-}
-EXPORT_SYMBOL(lov_lsm_get);
-
-void lov_lsm_put(struct cl_object *unused, struct lov_stripe_md *lsm)
+static void lov_lsm_put(struct lov_stripe_md *lsm)
{
if (lsm != NULL)
lov_free_memmd(&lsm);
}
-EXPORT_SYMBOL(lov_lsm_put);
/*****************************************************************************
*
*/
}
-static int lov_init_empty(const struct lu_env *env,
- struct lov_device *dev, struct lov_object *lov,
- const struct cl_object_conf *conf,
- union lov_layout_state *state)
+static int lov_init_empty(const struct lu_env *env, struct lov_device *dev,
+ struct lov_object *lov, struct lov_stripe_md *lsm,
+ const struct cl_object_conf *conf,
+ union lov_layout_state *state)
{
- return 0;
+ return 0;
}
static void lov_install_raid0(const struct lu_env *env,
return cl_object_header(stripe)->coh_page_bufsize;
}
-static int lov_init_raid0(const struct lu_env *env,
- struct lov_device *dev, struct lov_object *lov,
- const struct cl_object_conf *conf,
- union lov_layout_state *state)
+static int lov_init_raid0(const struct lu_env *env, struct lov_device *dev,
+ struct lov_object *lov, struct lov_stripe_md *lsm,
+ const struct cl_object_conf *conf,
+ union lov_layout_state *state)
{
int result;
int i;
struct cl_object *stripe;
struct lov_thread_info *lti = lov_env_info(env);
struct cl_object_conf *subconf = <i->lti_stripe_conf;
- struct lov_stripe_md *lsm = conf->u.coc_md->lsm;
struct lu_fid *ofid = <i->lti_fid;
struct lov_layout_raid0 *r0 = &state->raid0;
LASSERT(lov->lo_lsm == NULL);
lov->lo_lsm = lsm_addref(lsm);
- r0->lo_nr = lsm->lsm_stripe_count;
+ r0->lo_nr = lsm->lsm_stripe_count;
LASSERT(r0->lo_nr <= lov_targets_nr(dev));
lov->lo_layout_invalid = true;
}
static int lov_init_released(const struct lu_env *env,
- struct lov_device *dev, struct lov_object *lov,
- const struct cl_object_conf *conf,
- union lov_layout_state *state)
+ struct lov_device *dev, struct lov_object *lov,
+ struct lov_stripe_md *lsm,
+ const struct cl_object_conf *conf,
+ union lov_layout_state *state)
{
- struct lov_stripe_md *lsm = conf->u.coc_md->lsm;
-
LASSERT(lsm != NULL);
LASSERT(lsm_is_released(lsm));
LASSERT(lov->lo_lsm == NULL);
* ->lo_sub[] slot in lovsub_object_fini() */
if (r0->lo_sub[idx] == los) {
waiter = &lov_env_info(env)->lti_waiter;
- init_waitqueue_entry_current(waiter);
+ init_waitqueue_entry(waiter, current);
add_wait_queue(&bkt->lsb_marche_funebre, waiter);
set_current_state(TASK_UNINTERRUPTIBLE);
while (1) {
spin_lock(&r0->lo_sub_lock);
if (r0->lo_sub[idx] == los) {
spin_unlock(&r0->lo_sub_lock);
- waitq_wait(waiter, TASK_UNINTERRUPTIBLE);
+ schedule();
} else {
spin_unlock(&r0->lo_sub_lock);
set_current_state(TASK_RUNNING);
}
static int lov_layout_change(const struct lu_env *unused,
- struct lov_object *lov,
+ struct lov_object *lov, struct lov_stripe_md *lsm,
const struct cl_object_conf *conf)
{
- int result;
- enum lov_layout_type llt = LLT_EMPTY;
+ enum lov_layout_type llt = lov_type(lsm);
union lov_layout_state *state = &lov->u;
const struct lov_layout_operations *old_ops;
const struct lov_layout_operations *new_ops;
-
void *cookie;
struct lu_env *env;
int refcheck;
+ int rc;
ENTRY;
LASSERT(0 <= lov->lo_type && lov->lo_type < ARRAY_SIZE(lov_dispatch));
- if (conf->u.coc_md != NULL)
- llt = lov_type(conf->u.coc_md->lsm);
- LASSERT(0 <= llt && llt < ARRAY_SIZE(lov_dispatch));
-
cookie = cl_env_reenter();
env = cl_env_get(&refcheck);
if (IS_ERR(env)) {
RETURN(PTR_ERR(env));
}
+ LASSERT(0 <= llt && llt < ARRAY_SIZE(lov_dispatch));
+
CDEBUG(D_INODE, DFID" from %s to %s\n",
PFID(lu_object_fid(lov2lu(lov))),
llt2str(lov->lo_type), llt2str(llt));
old_ops = &lov_dispatch[lov->lo_type];
new_ops = &lov_dispatch[llt];
- result = cl_object_prune(env, &lov->lo_cl);
- if (result != 0)
- GOTO(out, result);
+ rc = cl_object_prune(env, &lov->lo_cl);
+ if (rc != 0)
+ GOTO(out, rc);
- result = old_ops->llo_delete(env, lov, &lov->u);
- if (result == 0) {
- old_ops->llo_fini(env, lov, &lov->u);
+ rc = old_ops->llo_delete(env, lov, &lov->u);
+ if (rc != 0)
+ GOTO(out, rc);
- LASSERT(atomic_read(&lov->lo_active_ios) == 0);
+ old_ops->llo_fini(env, lov, &lov->u);
- lov->lo_type = LLT_EMPTY;
- /* page bufsize fixup */
- cl_object_header(&lov->lo_cl)->coh_page_bufsize -=
- lov_page_slice_fixup(lov, NULL);
+ LASSERT(atomic_read(&lov->lo_active_ios) == 0);
- result = new_ops->llo_init(env,
- lu2lov_dev(lov->lo_cl.co_lu.lo_dev),
- lov, conf, state);
- if (result == 0) {
- new_ops->llo_install(env, lov, state);
- lov->lo_type = llt;
- } else {
- new_ops->llo_delete(env, lov, state);
- new_ops->llo_fini(env, lov, state);
- /* this file becomes an EMPTY file. */
- }
+ lov->lo_type = LLT_EMPTY;
+
+ /* page bufsize fixup */
+ cl_object_header(&lov->lo_cl)->coh_page_bufsize -=
+ lov_page_slice_fixup(lov, NULL);
+
+ rc = new_ops->llo_init(env, lov_object_dev(lov), lov, lsm, conf, state);
+ if (rc != 0) {
+ new_ops->llo_delete(env, lov, state);
+ new_ops->llo_fini(env, lov, state);
+ /* this file becomes an EMPTY file. */
+ GOTO(out, rc);
}
+ new_ops->llo_install(env, lov, state);
+ lov->lo_type = llt;
+
out:
cl_env_put(env, &refcheck);
cl_env_reexit(cookie);
- RETURN(result);
+
+ RETURN(rc);
}
/*****************************************************************************
*
*/
int lov_object_init(const struct lu_env *env, struct lu_object *obj,
- const struct lu_object_conf *conf)
+ const struct lu_object_conf *conf)
{
- struct lov_device *dev = lu2lov_dev(obj->lo_dev);
- struct lov_object *lov = lu2lov(obj);
- const struct cl_object_conf *cconf = lu2cl_conf(conf);
- union lov_layout_state *set = &lov->u;
- const struct lov_layout_operations *ops;
- int result;
+ struct lov_object *lov = lu2lov(obj);
+ struct lov_device *dev = lov_object_dev(lov);
+ const struct cl_object_conf *cconf = lu2cl_conf(conf);
+ union lov_layout_state *set = &lov->u;
+ const struct lov_layout_operations *ops;
+ struct lov_stripe_md *lsm = NULL;
+ int rc;
+ ENTRY;
- ENTRY;
init_rwsem(&lov->lo_type_guard);
atomic_set(&lov->lo_active_ios, 0);
init_waitqueue_head(&lov->lo_waitq);
-
cl_object_page_init(lu2cl(obj), sizeof(struct lov_page));
- /* no locking is necessary, as object is being created */
- lov->lo_type = lov_type(cconf->u.coc_md->lsm);
- ops = &lov_dispatch[lov->lo_type];
- result = ops->llo_init(env, dev, lov, cconf, set);
- if (result == 0)
- ops->llo_install(env, lov, set);
- RETURN(result);
+ if (cconf->u.coc_layout.lb_buf != NULL) {
+ lsm = lov_unpackmd(dev->ld_lov,
+ cconf->u.coc_layout.lb_buf,
+ cconf->u.coc_layout.lb_len);
+ if (IS_ERR(lsm))
+ RETURN(PTR_ERR(lsm));
+ }
+
+ /* no locking is necessary, as object is being created */
+ lov->lo_type = lov_type(lsm);
+ ops = &lov_dispatch[lov->lo_type];
+ rc = ops->llo_init(env, dev, lov, lsm, cconf, set);
+ if (rc != 0)
+ GOTO(out_lsm, rc);
+
+ ops->llo_install(env, lov, set);
+
+out_lsm:
+ lov_lsm_put(lsm);
+
+ RETURN(rc);
}
static int lov_conf_set(const struct lu_env *env, struct cl_object *obj,
int result = 0;
ENTRY;
+ if (conf->coc_opc == OBJECT_CONF_SET &&
+ conf->u.coc_layout.lb_buf != NULL) {
+ lsm = lov_unpackmd(lov_object_dev(lov)->ld_lov,
+ conf->u.coc_layout.lb_buf,
+ conf->u.coc_layout.lb_len);
+ if (IS_ERR(lsm))
+ RETURN(PTR_ERR(lsm));
+ }
+
lov_conf_lock(lov);
if (conf->coc_opc == OBJECT_CONF_INVALIDATE) {
lov->lo_layout_invalid = true;
LASSERT(conf->coc_opc == OBJECT_CONF_SET);
- if (conf->u.coc_md != NULL)
- lsm = conf->u.coc_md->lsm;
if ((lsm == NULL && lov->lo_lsm == NULL) ||
((lsm != NULL && lov->lo_lsm != NULL) &&
(lov->lo_lsm->lsm_layout_gen == lsm->lsm_layout_gen) &&
GOTO(out, result = -EBUSY);
}
- result = lov_layout_change(env, lov, conf);
+ result = lov_layout_change(env, lov, lsm, conf);
lov->lo_layout_invalid = result != 0;
EXIT;
out:
lov_conf_unlock(lov);
+ lov_lsm_put(lsm);
CDEBUG(D_INODE, DFID" lo_layout_invalid=%d\n",
PFID(lu_object_fid(lov2lu(lov))), lov->lo_layout_invalid);
RETURN(result);
* \param current_extent [in] where to start copying in the extent array
*/
static void fiemap_prepare_and_copy_exts(struct fiemap *fiemap,
- struct ll_fiemap_extent *lcl_fm_ext,
+ struct fiemap_extent *lcl_fm_ext,
int ost_index, unsigned int ext_count,
int current_extent)
{
/* Copy fm_extent's from fm_local to return buffer */
to = (char *)fiemap + fiemap_count_to_size(current_extent);
- memcpy(to, lcl_fm_ext, ext_count * sizeof(struct ll_fiemap_extent));
+ memcpy(to, lcl_fm_ext, ext_count * sizeof(struct fiemap_extent));
}
#define FIEMAP_BUFFER_SIZE 4096
struct cl_object *subobj = NULL;
struct lov_obd *lov = lu2lov_dev(obj->co_lu.lo_dev)->ld_lov;
struct fiemap *fm_local = NULL;
- struct ll_fiemap_extent *lcl_fm_ext;
+ struct fiemap_extent *lcl_fm_ext;
loff_t fm_start;
loff_t fm_end;
loff_t fm_length;
GOTO(out, rc = -ENOTSUPP);
if (lsm_is_released(lsm)) {
- if (fiemap->fm_start < fmkey->oa.o_size) {
+ if (fiemap->fm_start < fmkey->lfik_oa.o_size) {
/**
* released file, return a minimal FIEMAP if
* request fits in file-size.
fiemap->fm_mapped_extents = 1;
fiemap->fm_extents[0].fe_logical = fiemap->fm_start;
if (fiemap->fm_start + fiemap->fm_length <
- fmkey->oa.o_size)
+ fmkey->lfik_oa.o_size)
fiemap->fm_extents[0].fe_length =
fiemap->fm_length;
else
fiemap->fm_extents[0].fe_length =
- fmkey->oa.o_size - fiemap->fm_start;
+ fmkey->lfik_oa.o_size -
+ fiemap->fm_start;
fiemap->fm_extents[0].fe_flags |=
FIEMAP_EXTENT_UNKNOWN | FIEMAP_EXTENT_LAST;
}
fm_length = fiemap->fm_length;
/* Calculate start stripe, last stripe and length of mapping */
start_stripe = lov_stripe_number(lsm, fm_start);
- fm_end = (fm_length == ~0ULL) ? fmkey->oa.o_size :
+ fm_end = (fm_length == ~0ULL) ? fmkey->lfik_oa.o_size :
fm_start + fm_length - 1;
/* If fm_length != ~0ULL but fm_start_fm_length-1 exceeds file size */
- if (fm_end > fmkey->oa.o_size)
- fm_end = fmkey->oa.o_size;
+ if (fm_end > fmkey->lfik_oa.o_size)
+ fm_end = fmkey->lfik_oa.o_size;
last_stripe = fiemap_calc_last_stripe(lsm, fm_start, fm_end,
start_stripe, &stripe_count);
fm_local->fm_start = lun_start;
fm_local->fm_flags &= ~FIEMAP_FLAG_DEVICE_ORDER;
- memcpy(&fmkey->fiemap, fm_local, sizeof(*fm_local));
+ memcpy(&fmkey->lfik_fiemap, fm_local,
+ sizeof(*fm_local));
*buflen = fiemap_count_to_size(
fm_local->fm_extent_count);
if (lov_stripe_size(lsm,
lcl_fm_ext[ext_count - 1].fe_logical +
lcl_fm_ext[ext_count - 1].fe_length,
- cur_stripe) >= fmkey->oa.o_size)
+ cur_stripe) >= fmkey->lfik_oa.o_size)
ost_eof = true;
fiemap_prepare_and_copy_exts(fiemap, lcl_fm_ext,
out:
if (fm_local != NULL)
OBD_FREE_LARGE(fm_local, buffer_size);
- lov_lsm_put(obj, lsm);
- RETURN(rc);
+
+ lov_lsm_put(lsm);
+
+ return rc;
}
-static int lov_dispatch_obd_info_get(const struct lu_env *env,
- struct cl_object *obj,
- struct obd_info *oinfo,
- struct ptlrpc_request_set *set)
+static int lov_object_getstripe(const struct lu_env *env, struct cl_object *obj,
+ struct lov_user_md __user *lum)
{
- struct cl_object *subobj = NULL;
- struct lov_obd *lov = lu2lov_dev(obj->co_lu.lo_dev)->ld_lov;
- struct lov_request_set *lovset;
- struct list_head *pos;
- struct lov_request *req;
- int rc;
- int rc2;
+ struct lov_object *lov = cl2lov(obj);
+ struct lov_stripe_md *lsm;
+ int rc = 0;
ENTRY;
- rc = lov_prep_getattr_set(lov2obd(lov)->obd_self_export, oinfo,
- &lovset);
- if (rc != 0)
- RETURN(rc);
-
- CDEBUG(D_INFO, "objid "DOSTID": %ux%u byte stripes.\n",
- POSTID(&oinfo->oi_md->lsm_oi),
- oinfo->oi_md->lsm_stripe_count,
- oinfo->oi_md->lsm_stripe_size);
-
- list_for_each(pos, &lovset->set_list) {
- req = list_entry(pos, struct lov_request, rq_link);
-
- CDEBUG(D_INFO, "objid "DOSTID"[%d] has subobj "DOSTID" at idx"
- "%u\n", POSTID(&oinfo->oi_oa->o_oi), req->rq_stripe,
- POSTID(&req->rq_oi.oi_oa->o_oi), req->rq_idx);
- subobj = lov_find_subobj(env, cl2lov(obj), oinfo->oi_md,
- req->rq_stripe);
- if (IS_ERR(subobj))
- GOTO(errout, rc = PTR_ERR(subobj));
-
- rc = cl_object_obd_info_get(env, subobj, &req->rq_oi, set);
- cl_object_put(env, subobj);
- if (rc != 0) {
- CERROR("%s: getattr objid "DOSTID" subobj"
- DOSTID" on OST idx %d: rc = %d\n",
- lov2obd(lov)->obd_name,
- POSTID(&oinfo->oi_oa->o_oi),
- POSTID(&req->rq_oi.oi_oa->o_oi),
- req->rq_idx, rc);
- GOTO(errout, rc);
- }
- }
+ lsm = lov_lsm_addref(lov);
+ if (lsm == NULL)
+ RETURN(-ENODATA);
- if (!list_empty(&set->set_requests)) {
- LASSERT(rc == 0);
- LASSERT(set->set_interpret == NULL);
- set->set_interpret = lov_getattr_interpret;
- set->set_arg = lovset;
- GOTO(out, rc);
- }
-errout:
- if (rc)
- atomic_set(&lovset->set_completes, 0);
- rc2 = lov_fini_getattr_set(lovset);
- rc = rc != 0 ? rc : rc2;
-out:
+ rc = lov_getstripe(cl2lov(obj), lsm, lum);
+ lov_lsm_put(lsm);
RETURN(rc);
}
-static int lov_object_data_version(const struct lu_env *env,
- struct cl_object *obj, __u64 *data_version,
- int flags)
+static int lov_object_layout_get(const struct lu_env *env,
+ struct cl_object *obj,
+ struct cl_layout *cl)
{
- struct ptlrpc_request_set *set;
- struct obd_info oinfo = { { { 0 } } };
- struct obdo *obdo = NULL;
- struct lov_stripe_md *lsm;
- int rc;
+ struct lov_object *lov = cl2lov(obj);
+ struct lov_stripe_md *lsm = lov_lsm_addref(lov);
+ struct lu_buf *buf = &cl->cl_buf;
+ ssize_t rc;
ENTRY;
- lsm = lov_lsm_addref(cl2lov(obj));
- if (!lsm_has_objects(lsm)) {
- /* If no stripe, we consider version is 0. */
- *data_version = 0;
- GOTO(out, rc = 0);
+ if (lsm == NULL) {
+ cl->cl_size = 0;
+ cl->cl_layout_gen = CL_LAYOUT_GEN_EMPTY;
+ cl->cl_is_released = false;
+
+ RETURN(0);
}
- OBD_ALLOC_PTR(obdo);
- if (obdo == NULL)
- GOTO(out, rc = -ENOMEM);
+ cl->cl_size = lov_mds_md_size(lsm->lsm_stripe_count, lsm->lsm_magic);
+ cl->cl_layout_gen = lsm->lsm_layout_gen;
+ cl->cl_is_released = lsm_is_released(lsm);
- oinfo.oi_md = lsm;
- oinfo.oi_oa = obdo;
- obdo->o_oi = lsm->lsm_oi;
- obdo->o_mode = S_IFREG;
- obdo->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP | OBD_MD_FLTYPE;
- if (flags & (LL_DV_RD_FLUSH | LL_DV_WR_FLUSH)) {
- obdo->o_valid |= OBD_MD_FLFLAGS;
- obdo->o_flags |= OBD_FL_SRVLOCK;
- if (flags & LL_DV_WR_FLUSH)
- obdo->o_flags |= OBD_FL_FLUSH;
- }
+ rc = lov_lsm_pack(lsm, buf->lb_buf, buf->lb_len);
+ lov_lsm_put(lsm);
- set = ptlrpc_prep_set();
- if (set == NULL)
- GOTO(out_obdo, rc = -ENOMEM);
-
- rc = lov_dispatch_obd_info_get(env, obj, &oinfo, set);
- if (rc == 0)
- rc = ptlrpc_set_wait(set);
- ptlrpc_set_destroy(set);
- if (rc == 0) {
- oinfo.oi_oa->o_valid &= OBD_MD_FLDATAVERSION | OBD_MD_FLFLAGS;
- if (flags & LL_DV_WR_FLUSH &&
- !(oinfo.oi_oa->o_valid & OBD_MD_FLFLAGS &&
- oinfo.oi_oa->o_flags & OBD_FL_FLUSH))
- rc = -EOPNOTSUPP;
- else if (!(obdo->o_valid & OBD_MD_FLDATAVERSION))
- rc = -EOPNOTSUPP;
- else
- *data_version = obdo->o_data_version;
- }
-out_obdo:
- OBD_FREE_PTR(obdo);
-out:
- lov_lsm_put(obj, lsm);
- RETURN(rc);
+ RETURN(rc < 0 ? rc : 0);
}
-static int lov_object_getstripe(const struct lu_env *env, struct cl_object *obj,
- struct lov_user_md __user *lum)
+static loff_t lov_object_maxbytes(struct cl_object *obj)
{
- struct lov_object *lov = cl2lov(obj);
- struct lov_stripe_md *lsm;
- int rc = 0;
- ENTRY;
+ struct lov_object *lov = cl2lov(obj);
+ struct lov_stripe_md *lsm = lov_lsm_addref(lov);
+ loff_t maxbytes;
- lsm = lov_lsm_addref(lov);
if (lsm == NULL)
- RETURN(-ENODATA);
+ return LLONG_MAX;
- rc = lov_getstripe(cl2lov(obj), lsm, lum);
- lov_lsm_put(obj, lsm);
- RETURN(rc);
+ maxbytes = lsm->lsm_maxbytes;
+
+ lov_lsm_put(lsm);
+
+ return maxbytes;
}
static int lov_object_find_cbdata(const struct lu_env *env,
.coo_attr_update = lov_attr_update,
.coo_conf_set = lov_conf_set,
.coo_getstripe = lov_object_getstripe,
+ .coo_layout_get = lov_object_layout_get,
+ .coo_maxbytes = lov_object_maxbytes,
.coo_find_cbdata = lov_object_find_cbdata,
.coo_fiemap = lov_object_fiemap,
- .coo_data_version = lov_object_data_version,
};
static const struct lu_object_operations lov_lu_obj_ops = {
git://git.whamcloud.com / fs / lustre-release.git / blobdiff