*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* 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, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
- * cl code shared between vvp and liblustre (and other Lustre clients in the
- * future).
- *
* Author: Nikita Danilov <nikita.danilov@sun.com>
*/
#include <obd_support.h>
#include <lustre_fid.h>
#include <lustre_dlm.h>
-#include <lustre_ver.h>
#include <lustre_mdc.h>
#include <cl_object.h>
#include "llite_internal.h"
-
-static const struct cl_req_operations ccc_req_ops;
-
-/*
- * ccc_ prefix stands for "Common Client Code".
- */
-
-static struct kmem_cache *ccc_thread_kmem;
-static struct kmem_cache *ccc_req_kmem;
-
-static struct lu_kmem_descr ccc_caches[] = {
- {
- .ckd_cache = &ccc_thread_kmem,
- .ckd_name = "ccc_thread_kmem",
- .ckd_size = sizeof (struct ccc_thread_info),
- },
- {
- .ckd_cache = &ccc_req_kmem,
- .ckd_name = "ccc_req_kmem",
- .ckd_size = sizeof (struct ccc_req)
- },
- {
- .ckd_cache = NULL
- }
-};
-
-/*****************************************************************************
- *
- * Vvp device and device type functions.
- *
- */
-
-void *ccc_key_init(const struct lu_context *ctx, struct lu_context_key *key)
-{
- struct ccc_thread_info *info;
-
- OBD_SLAB_ALLOC_PTR_GFP(info, ccc_thread_kmem, GFP_NOFS);
- if (info == NULL)
- info = ERR_PTR(-ENOMEM);
- return info;
-}
-
-void ccc_key_fini(const struct lu_context *ctx,
- struct lu_context_key *key, void *data)
-{
- struct ccc_thread_info *info = data;
- OBD_SLAB_FREE_PTR(info, ccc_thread_kmem);
-}
-
-struct lu_context_key ccc_key = {
- .lct_tags = LCT_CL_THREAD,
- .lct_init = ccc_key_init,
- .lct_fini = ccc_key_fini
-};
-
-int ccc_req_init(const struct lu_env *env, struct cl_device *dev,
- struct cl_req *req)
-{
- struct ccc_req *vrq;
- int result;
-
- OBD_SLAB_ALLOC_PTR_GFP(vrq, ccc_req_kmem, GFP_NOFS);
- if (vrq != NULL) {
- cl_req_slice_add(req, &vrq->crq_cl, dev, &ccc_req_ops);
- result = 0;
- } else
- result = -ENOMEM;
- return result;
-}
+#include "vvp_internal.h"
/**
- * An `emergency' environment used by ccc_inode_fini() when cl_env_get()
- * fails. Access to this environment is serialized by ccc_inode_fini_guard
+ * An `emergency' environment used by cl_inode_fini() when cl_env_get()
+ * fails. Access to this environment is serialized by cl_inode_fini_guard
* mutex.
*/
-static struct lu_env *ccc_inode_fini_env = NULL;
+struct lu_env *cl_inode_fini_env;
+__u16 cl_inode_fini_refcheck;
/**
* A mutex serializing calls to slp_inode_fini() under extreme memory
* pressure, when environments cannot be allocated.
*/
-static DEFINE_MUTEX(ccc_inode_fini_guard);
-static int dummy_refcheck;
-
-int ccc_global_init(struct lu_device_type *device_type)
-{
- int result;
-
- result = lu_kmem_init(ccc_caches);
- if (result)
- return result;
-
- result = lu_device_type_init(device_type);
- if (result)
- goto out_kmem;
-
- ccc_inode_fini_env = cl_env_alloc(&dummy_refcheck,
- LCT_REMEMBER|LCT_NOREF);
- if (IS_ERR(ccc_inode_fini_env)) {
- result = PTR_ERR(ccc_inode_fini_env);
- goto out_device;
- }
-
- ccc_inode_fini_env->le_ctx.lc_cookie = 0x4;
- return 0;
-out_device:
- lu_device_type_fini(device_type);
-out_kmem:
- lu_kmem_fini(ccc_caches);
- return result;
-}
-
-void ccc_global_fini(struct lu_device_type *device_type)
-{
- if (ccc_inode_fini_env != NULL) {
- cl_env_put(ccc_inode_fini_env, &dummy_refcheck);
- ccc_inode_fini_env = NULL;
- }
- lu_device_type_fini(device_type);
- lu_kmem_fini(ccc_caches);
-}
-
-/*****************************************************************************
- *
- * Transfer operations.
- *
- */
-
-void ccc_req_completion(const struct lu_env *env,
- const struct cl_req_slice *slice, int ioret)
-{
- struct ccc_req *vrq;
-
- if (ioret > 0)
- cl_stats_tally(slice->crs_dev, slice->crs_req->crq_type, ioret);
-
- vrq = cl2ccc_req(slice);
- OBD_SLAB_FREE_PTR(vrq, ccc_req_kmem);
-}
-
-/**
- * Implementation of struct cl_req_operations::cro_attr_set() for ccc
- * layer. ccc is responsible for
- *
- * - o_[mac]time
- *
- * - o_mode
- *
- * - o_parent_seq
- *
- * - o_[ug]id
- *
- * - o_parent_oid
- *
- * - o_parent_ver
- *
- * - o_ioepoch,
- *
- * and capability.
- */
-void ccc_req_attr_set(const struct lu_env *env,
- const struct cl_req_slice *slice,
- const struct cl_object *obj,
- struct cl_req_attr *attr, u64 flags)
-{
- struct inode *inode;
- struct obdo *oa;
- u32 valid_flags;
-
- oa = attr->cra_oa;
- inode = vvp_object_inode(obj);
- valid_flags = OBD_MD_FLTYPE;
-
- if ((flags & OBD_MD_FLOSSCAPA) != 0) {
- LASSERT(attr->cra_capa == NULL);
- attr->cra_capa = cl_capa_lookup(inode,
- slice->crs_req->crq_type);
- }
+static DEFINE_MUTEX(cl_inode_fini_guard);
- if (slice->crs_req->crq_type == CRT_WRITE) {
- if (flags & OBD_MD_FLEPOCH) {
- oa->o_valid |= OBD_MD_FLEPOCH;
- oa->o_ioepoch = ll_i2info(inode)->lli_ioepoch;
- valid_flags |= OBD_MD_FLMTIME | OBD_MD_FLCTIME |
- OBD_MD_FLUID | OBD_MD_FLGID;
- }
- }
- obdo_from_inode(oa, inode, valid_flags & flags);
- obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid);
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_INVALID_PFID))
- oa->o_parent_oid++;
- memcpy(attr->cra_jobid, ll_i2info(inode)->lli_jobid,
- LUSTRE_JOBID_SIZE);
-}
-
-static const struct cl_req_operations ccc_req_ops = {
- .cro_attr_set = ccc_req_attr_set,
- .cro_completion = ccc_req_completion
-};
-
-int cl_setattr_ost(struct inode *inode, const struct iattr *attr,
- struct obd_capa *capa)
+int cl_setattr_ost(struct cl_object *obj, const struct iattr *attr,
+ enum op_xvalid xvalid, unsigned int attr_flags)
{
- struct lu_env *env;
- struct cl_io *io;
- int result;
- int refcheck;
+ struct lu_env *env;
+ struct cl_io *io;
+ int result;
+ __u16 refcheck;
- ENTRY;
+ ENTRY;
- env = cl_env_get(&refcheck);
- if (IS_ERR(env))
- RETURN(PTR_ERR(env));
+ env = cl_env_get(&refcheck);
+ if (IS_ERR(env))
+ RETURN(PTR_ERR(env));
- io = ccc_env_thread_io(env);
- io->ci_obj = ll_i2info(inode)->lli_clob;
+ io = vvp_env_thread_io(env);
+ io->ci_obj = obj;
+ io->ci_verify_layout = 1;
- io->u.ci_setattr.sa_attr.lvb_atime = LTIME_S(attr->ia_atime);
- io->u.ci_setattr.sa_attr.lvb_mtime = LTIME_S(attr->ia_mtime);
- io->u.ci_setattr.sa_attr.lvb_ctime = LTIME_S(attr->ia_ctime);
+ io->u.ci_setattr.sa_attr.lvb_atime = attr->ia_atime.tv_sec;
+ io->u.ci_setattr.sa_attr.lvb_mtime = attr->ia_mtime.tv_sec;
+ io->u.ci_setattr.sa_attr.lvb_ctime = attr->ia_ctime.tv_sec;
io->u.ci_setattr.sa_attr.lvb_size = attr->ia_size;
- io->u.ci_setattr.sa_valid = attr->ia_valid;
- io->u.ci_setattr.sa_parent_fid = ll_inode2fid(inode);
- io->u.ci_setattr.sa_capa = capa;
+ io->u.ci_setattr.sa_attr_flags = attr_flags;
+ io->u.ci_setattr.sa_avalid = attr->ia_valid;
+ io->u.ci_setattr.sa_xvalid = xvalid;
+ io->u.ci_setattr.sa_parent_fid = lu_object_fid(&obj->co_lu);
again:
- if (cl_io_init(env, io, CIT_SETATTR, io->ci_obj) == 0) {
+ if (attr->ia_valid & ATTR_FILE)
+ ll_io_set_mirror(io, attr->ia_file);
+
+ if (cl_io_init(env, io, CIT_SETATTR, io->ci_obj) == 0) {
struct vvp_io *vio = vvp_env_io(env);
if (attr->ia_valid & ATTR_FILE)
/* populate the file descriptor for ftruncate to honor
* group lock - see LU-787 */
- vio->vui_fd = LUSTRE_FPRIVATE(attr->ia_file);
+ vio->vui_fd = attr->ia_file->private_data;
- result = cl_io_loop(env, io);
- } else {
- result = io->ci_result;
- }
- cl_io_fini(env, io);
+ result = cl_io_loop(env, io);
+ } else {
+ result = io->ci_result;
+ }
+ cl_io_fini(env, io);
if (unlikely(io->ci_need_restart))
goto again;
- /* HSM import case: file is released, cannot be restored
- * no need to fail except if restore registration failed
- * with -ENODATA */
- if (result == -ENODATA && io->ci_restore_needed &&
- io->ci_result != -ENODATA)
- result = 0;
+
cl_env_put(env, &refcheck);
RETURN(result);
}
-/*****************************************************************************
- *
- * Type conversions.
- *
- */
-
-struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice)
-{
- return container_of0(slice, struct ccc_req, crq_cl);
-}
-
/**
* Initialize or update CLIO structures for regular files when new
* meta-data arrives from the server.
struct cl_object *clob;
struct lu_site *site;
struct lu_fid *fid;
- struct cl_object_conf conf = {
- .coc_inode = inode,
- .u = {
- .coc_md = md
- }
- };
+ struct cl_object_conf conf = {
+ .coc_inode = inode,
+ .u = {
+ .coc_layout = md->layout,
+ }
+ };
int result = 0;
- int refcheck;
+ __u16 refcheck;
LASSERT(md->body->mbo_valid & OBD_MD_FLID);
LASSERT(S_ISREG(inode->i_mode));
site = ll_i2sbi(inode)->ll_site;
lli = ll_i2info(inode);
- fid = &lli->lli_fid;
- LASSERT(fid_is_sane(fid));
-
- if (lli->lli_clob == NULL) {
- /* clob is slave of inode, empty lli_clob means for new inode,
- * there is no clob in cache with the given fid, so it is
- * unnecessary to perform lookup-alloc-lookup-insert, just
- * alloc and insert directly. */
- LASSERT(inode->i_state & I_NEW);
- conf.coc_lu.loc_flags = LOC_F_NEW;
- clob = cl_object_find(env, lu2cl_dev(site->ls_top_dev),
- fid, &conf);
- if (!IS_ERR(clob)) {
- /*
- * No locking is necessary, as new inode is
- * locked by I_NEW bit.
- */
- lli->lli_clob = clob;
- lli->lli_has_smd = lsm_has_objects(md->lsm);
- lu_object_ref_add(&clob->co_lu, "inode", inode);
- } else
- result = PTR_ERR(clob);
+ fid = &lli->lli_fid;
+ LASSERT(fid_is_sane(fid));
+
+ if (lli->lli_clob == NULL) {
+ /* clob is slave of inode, empty lli_clob means for new inode,
+ * there is no clob in cache with the given fid, so it is
+ * unnecessary to perform lookup-alloc-lookup-insert, just
+ * alloc and insert directly.
+ */
+ if (!(inode->i_state & I_NEW)) {
+ result = -EIO;
+ CERROR("%s: unexpected not-NEW inode "DFID": rc = %d\n",
+ ll_i2sbi(inode)->ll_fsname, PFID(fid), result);
+ goto out;
+ }
+
+ conf.coc_lu.loc_flags = LOC_F_NEW;
+ clob = cl_object_find(env, lu2cl_dev(site->ls_top_dev),
+ fid, &conf);
+ if (!IS_ERR(clob)) {
+ /*
+ * No locking is necessary, as new inode is
+ * locked by I_NEW bit.
+ */
+ lli->lli_clob = clob;
+ lu_object_ref_add(&clob->co_lu, "inode", inode);
+ } else {
+ result = PTR_ERR(clob);
+ }
} else {
result = cl_conf_set(env, lli->lli_clob, &conf);
+ if (result == -EBUSY) {
+ /* ignore the error since I/O will handle it later */
+ result = 0;
+ }
}
- cl_env_put(env, &refcheck);
+ if (result != 0)
+ CERROR("%s: failed to initialize cl_object "DFID": rc = %d\n",
+ ll_i2sbi(inode)->ll_fsname, PFID(fid), result);
+
+out:
+ cl_env_put(env, &refcheck);
- if (result != 0)
- CERROR("Failure to initialize cl object "DFID": %d\n",
- PFID(fid), result);
- return result;
+ return result;
}
/**
static void cl_object_put_last(struct lu_env *env, struct cl_object *obj)
{
struct lu_object_header *header = obj->co_lu.lo_header;
- wait_queue_t waiter;
if (unlikely(atomic_read(&header->loh_ref) != 1)) {
struct lu_site *site = obj->co_lu.lo_dev->ld_site;
- struct lu_site_bkt_data *bkt;
-
- bkt = lu_site_bkt_from_fid(site, &header->loh_fid);
+ wait_queue_head_t *wq;
- init_waitqueue_entry_current(&waiter);
- add_wait_queue(&bkt->lsb_marche_funebre, &waiter);
-
- while (1) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- if (atomic_read(&header->loh_ref) == 1)
- break;
- waitq_wait(&waiter, TASK_UNINTERRUPTIBLE);
- }
+ wq = lu_site_wq_from_fid(site, &header->loh_fid);
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&bkt->lsb_marche_funebre, &waiter);
+ wait_event(*wq, atomic_read(&header->loh_ref) == 1);
}
cl_object_put(env, obj);
{
struct lu_env *env;
struct ll_inode_info *lli = ll_i2info(inode);
- struct cl_object *clob = lli->lli_clob;
- int refcheck;
- int emergency;
-
- if (clob != NULL) {
- void *cookie;
-
- cookie = cl_env_reenter();
- env = cl_env_get(&refcheck);
- emergency = IS_ERR(env);
- if (emergency) {
- mutex_lock(&ccc_inode_fini_guard);
- LASSERT(ccc_inode_fini_env != NULL);
- cl_env_implant(ccc_inode_fini_env, &refcheck);
- env = ccc_inode_fini_env;
- }
+ struct cl_object *clob = lli->lli_clob;
+ __u16 refcheck;
+ int emergency;
+
+ if (clob != NULL) {
+ env = cl_env_get(&refcheck);
+ emergency = IS_ERR(env);
+ if (emergency) {
+ mutex_lock(&cl_inode_fini_guard);
+ LASSERT(cl_inode_fini_env != NULL);
+ env = cl_inode_fini_env;
+ }
+
/*
* cl_object cache is a slave to inode cache (which, in turn
* is a slave to dentry cache), don't keep cl_object in memory
lu_object_ref_del(&clob->co_lu, "inode", inode);
cl_object_put_last(env, clob);
lli->lli_clob = NULL;
- if (emergency) {
- cl_env_unplant(ccc_inode_fini_env, &refcheck);
- mutex_unlock(&ccc_inode_fini_guard);
- } else
- cl_env_put(env, &refcheck);
- cl_env_reexit(cookie);
- }
-}
-
-/**
- * return IF_* type for given lu_dirent entry.
- * IF_* flag shld be converted to particular OS file type in
- * platform llite module.
- */
-__u16 ll_dirent_type_get(struct lu_dirent *ent)
-{
- __u16 type = 0;
- struct luda_type *lt;
- int len = 0;
-
- if (le32_to_cpu(ent->lde_attrs) & LUDA_TYPE) {
- const unsigned align = sizeof(struct luda_type) - 1;
-
- len = le16_to_cpu(ent->lde_namelen);
- len = (len + align) & ~align;
- lt = (void *)ent->lde_name + len;
- type = IFTODT(le16_to_cpu(lt->lt_type));
+ if (emergency)
+ mutex_unlock(&cl_inode_fini_guard);
+ else
+ cl_env_put(env, &refcheck);
}
- return type;
}
/**
- * build inode number from passed @fid */
+ * build inode number from passed @fid.
+ *
+ * For 32-bit systems or syscalls limit the inode number to a 32-bit value
+ * to avoid EOVERFLOW errors. This will inevitably result in inode number
+ * collisions, but fid_flatten32() tries hard to avoid this if possible.
+ */
__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32)
{
- if (BITS_PER_LONG == 32 || api32)
- RETURN(fid_flatten32(fid));
- else
- RETURN(fid_flatten(fid));
+ if (BITS_PER_LONG == 32 || api32)
+ RETURN(fid_flatten32(fid));
+
+ RETURN(fid_flatten(fid));
}
/**
* build inode generation from passed @fid. If our FID overflows the 32-bit
- * inode number then return a non-zero generation to distinguish them. */
+ * inode number then return a non-zero generation to distinguish them.
+ */
__u32 cl_fid_build_gen(const struct lu_fid *fid)
{
- __u32 gen;
- ENTRY;
-
- if (fid_is_igif(fid)) {
- gen = lu_igif_gen(fid);
- RETURN(gen);
- }
-
- gen = (fid_flatten(fid) >> 32);
- RETURN(gen);
-}
-
-/* lsm is unreliable after hsm implementation as layout can be changed at
- * any time. This is only to support old, non-clio-ized interfaces. It will
- * cause deadlock if clio operations are called with this extra layout refcount
- * because in case the layout changed during the IO, ll_layout_refresh() will
- * have to wait for the refcount to become zero to destroy the older layout.
- *
- * Notice that the lsm returned by this function may not be valid unless called
- * inside layout lock - MDS_INODELOCK_LAYOUT. */
-struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode)
-{
- return lov_lsm_get(ll_i2info(inode)->lli_clob);
-}
+ if (fid_is_igif(fid))
+ RETURN(lu_igif_gen(fid));
-void inline ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm)
-{
- lov_lsm_put(ll_i2info(inode)->lli_clob, lsm);
+ RETURN(fid_flatten(fid) >> 32);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff