* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2014, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#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,
struct cl_object *obj, struct cl_io *io);
int (*llo_getattr)(const struct lu_env *env, struct cl_object *obj,
struct cl_attr *attr);
- int (*llo_find_cbdata)(const struct lu_env *env, struct cl_object *obj,
- ldlm_iterator_t iter, void *data);
};
static int lov_layout_wait(const struct lu_env *env, struct lov_object *lov);
*/
}
-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,
}
LU_OBJECT_DEBUG(mask, env, &stripe->co_lu,
- "stripe %d is already owned.\n", idx);
- LU_OBJECT_DEBUG(mask, env, old_obj, "owned.\n");
+ "stripe %d is already owned.", idx);
+ LU_OBJECT_DEBUG(mask, env, old_obj, "owned.");
LU_OBJECT_HEADER(mask, env, lov2lu(lov), "try to own.\n");
cl_object_put(env, stripe);
}
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;
if (result != 0)
GOTO(out, result);
+ if (dev->ld_target[ost_idx] == NULL) {
+ CERROR("%s: OST %04x is not initialized\n",
+ lov2obd(dev->ld_lov)->obd_name, ost_idx);
+ GOTO(out, result = -EIO);
+ }
+
subdev = lovsub2cl_dev(dev->ld_target[ost_idx]);
subconf->u.coc_oinfo = oinfo;
LASSERTF(subdev != NULL, "not init ost %d\n", ost_idx);
}
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);
RETURN(result);
}
-static int lov_find_cbdata_empty(const struct lu_env *env,
- struct cl_object *obj, ldlm_iterator_t iter,
- void *data)
-{
- return 0;
-}
-
-static int lov_find_cbdata_raid0(const struct lu_env *env,
- struct cl_object *obj, ldlm_iterator_t iter,
- void *data)
-{
- struct lov_object *lov = cl2lov(obj);
- struct lov_layout_raid0 *r0 = lov_r0(lov);
- struct cl_object *subobj;
- int i;
- int rc = 0;
-
- for (i = 0; i < r0->lo_nr; ++i) {
- if (r0->lo_sub[i] == NULL)
- continue;
-
- subobj = lovsub2cl(r0->lo_sub[i]);
-
- rc = cl_object_find_cbdata(env, subobj, iter, data);
- if (rc != 0)
- break;
- }
-
- return rc;
-}
-
const static struct lov_layout_operations lov_dispatch[] = {
[LLT_EMPTY] = {
.llo_init = lov_init_empty,
.llo_lock_init = lov_lock_init_empty,
.llo_io_init = lov_io_init_empty,
.llo_getattr = lov_attr_get_empty,
- .llo_find_cbdata = lov_find_cbdata_empty
},
[LLT_RAID0] = {
.llo_init = lov_init_raid0,
.llo_lock_init = lov_lock_init_raid0,
.llo_io_init = lov_io_init_raid0,
.llo_getattr = lov_attr_get_raid0,
- .llo_find_cbdata = lov_find_cbdata_raid0
},
[LLT_RELEASED] = {
.llo_init = lov_init_released,
.llo_lock_init = lov_lock_init_empty,
.llo_io_init = lov_io_init_released,
.llo_getattr = lov_attr_get_empty,
- .llo_find_cbdata = lov_find_cbdata_empty
}
};
static inline void lov_conf_freeze(struct lov_object *lov)
{
+ CDEBUG(D_INODE, "To take share lov(%p) owner %p/%p\n",
+ lov, lov->lo_owner, current);
if (lov->lo_owner != current)
down_read(&lov->lo_type_guard);
}
static inline void lov_conf_thaw(struct lov_object *lov)
{
+ CDEBUG(D_INODE, "To release share lov(%p) owner %p/%p\n",
+ lov, lov->lo_owner, current);
if (lov->lo_owner != current)
up_read(&lov->lo_type_guard);
}
down_write(&lov->lo_type_guard);
LASSERT(lov->lo_owner == NULL);
lov->lo_owner = current;
+ CDEBUG(D_INODE, "Took exclusive lov(%p) owner %p\n",
+ lov, lov->lo_owner);
}
static void lov_conf_unlock(struct lov_object *lov)
{
+ CDEBUG(D_INODE, "To release exclusive lov(%p) owner %p\n",
+ lov, lov->lo_owner);
lov->lo_owner = NULL;
up_write(&lov->lo_type_guard);
}
}
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 lov_device *lov_dev = lov_object_dev(lov);
struct lu_env *env;
- int refcheck;
+ __u16 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)) {
- cl_env_reexit(cookie);
+ 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))),
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. */
- }
+ CDEBUG(D_INODE, DFID "Apply new layout lov %p, type %d\n",
+ PFID(lu_object_fid(lov2lu(lov))), lov, llt);
+
+ 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_dev, lov, lsm, conf, state);
+ if (rc != 0) {
+ struct obd_device *obd = lov2obd(lov_dev->ld_lov);
+
+ CERROR("%s: cannot apply new layout on "DFID" : rc = %d\n",
+ obd->obd_name, PFID(lu_object_fid(lov2lu(lov))), rc);
+ 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);
+ lov->lo_type = LLT_EMPTY;
+ 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);
struct cl_io *io)
{
CL_IO_SLICE_CLEAN(lov_env_io(env), lis_cl);
+
+ CDEBUG(D_INODE, DFID "io %p type %d ignore/verify layout %d/%d\n",
+ PFID(lu_object_fid(&obj->co_lu)), io, io->ci_type,
+ io->ci_ignore_layout, io->ci_verify_layout);
+
return LOV_2DISPATCH_MAYLOCK(cl2lov(obj), llo_io_init,
!io->ci_ignore_layout, env, obj, io);
}
* \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;
*/
if (lsm->lsm_stripe_count > 1 && !(fiemap->fm_flags &
FIEMAP_FLAG_DEVICE_ORDER))
- GOTO(out, rc = -ENOTSUPP);
+ GOTO(out_lsm, 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;
}
- GOTO(out, rc = 0);
+ GOTO(out_lsm, rc = 0);
}
if (fiemap_count_to_size(fiemap->fm_extent_count) < buffer_size)
OBD_ALLOC_LARGE(fm_local, buffer_size);
if (fm_local == NULL)
- GOTO(out, rc = -ENOMEM);
+ GOTO(out_lsm, rc = -ENOMEM);
lcl_fm_ext = &fm_local->fm_extents[0];
count_local = fiemap_size_to_count(buffer_size);
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_end_offset = fiemap_calc_fm_end_offset(fiemap, lsm, fm_start, fm_end,
&start_stripe);
if (fm_end_offset == -EINVAL)
- GOTO(out, rc = -EINVAL);
+ GOTO(out_fm_local, rc = -EINVAL);
/**
* Requested extent count exceeds the fiemap buffer size, shrink our
continue;
if (lov_oinfo_is_dummy(lsm->lsm_oinfo[cur_stripe]))
- GOTO(out, rc = -EIO);
+ GOTO(out_fm_local, rc = -EIO);
/* If this is a continuation FIEMAP call and we are on
* starting stripe then lun_start needs to be set to
subobj = lov_find_subobj(env, cl2lov(obj), lsm,
cur_stripe);
if (IS_ERR(subobj))
- GOTO(out, rc = PTR_ERR(subobj));
+ GOTO(out_fm_local, rc = PTR_ERR(subobj));
/* If the output buffer is very large and the objects have many
* extents we may need to loop on a single OST repeatedly */
ost_eof = false;
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,
obj_put:
if (subobj != NULL)
cl_object_put(env, subobj);
-out:
- if (fm_local != NULL)
- OBD_FREE_LARGE(fm_local, buffer_size);
+out_fm_local:
+ OBD_FREE_LARGE(fm_local, buffer_size);
+out_lsm:
lov_lsm_put(lsm);
return rc;
if (lsm == NULL) {
cl->cl_size = 0;
cl->cl_layout_gen = CL_LAYOUT_GEN_EMPTY;
- cl->cl_is_released = false;
RETURN(0);
}
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);
rc = lov_lsm_pack(lsm, buf->lb_buf, buf->lb_len);
lov_lsm_put(lsm);
return maxbytes;
}
-static int lov_object_find_cbdata(const struct lu_env *env,
- struct cl_object *obj, ldlm_iterator_t iter,
- void *data)
-{
- int rc;
- ENTRY;
-
- /* call cl_object_find_cbdata for sub obj */
- rc = LOV_2DISPATCH_NOLOCK(cl2lov(obj), llo_find_cbdata,
- env, obj, iter, data);
- RETURN(rc);
-}
-
static const struct cl_object_operations lov_ops = {
.coo_page_init = lov_page_init,
.coo_lock_init = lov_lock_init,
.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,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff