* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_LLITE
-#ifdef __KERNEL__
-# include <libcfs/libcfs.h>
-# include <linux/fs.h>
-# include <linux/sched.h>
-# include <linux/mm.h>
-# include <linux/quotaops.h>
-# include <linux/highmem.h>
-# include <linux/pagemap.h>
-# include <linux/rbtree.h>
-#else /* __KERNEL__ */
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <time.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/queue.h>
-#include <fcntl.h>
-# include <liblustre.h>
-#endif
+#include <libcfs/libcfs.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/quotaops.h>
+#include <linux/highmem.h>
+#include <linux/pagemap.h>
+#include <linux/rbtree.h>
#include <obd.h>
#include <obd_support.h>
#include <lustre_fid.h>
-#include <lustre_lite.h>
#include <lustre_dlm.h>
#include <lustre_ver.h>
#include <lustre_mdc.h>
#include <cl_object.h>
-#include <lclient.h>
-
-#ifdef __KERNEL__
-#include "../llite/llite_internal.h"
-#else
-#include "../liblustre/llite_lib.h"
-#endif
+#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_lock_kmem;
-static struct kmem_cache *ccc_object_kmem;
static struct kmem_cache *ccc_thread_kmem;
-static struct kmem_cache *ccc_session_kmem;
static struct kmem_cache *ccc_req_kmem;
static struct lu_kmem_descr ccc_caches[] = {
{
- .ckd_cache = &ccc_lock_kmem,
- .ckd_name = "ccc_lock_kmem",
- .ckd_size = sizeof (struct ccc_lock)
- },
- {
- .ckd_cache = &ccc_object_kmem,
- .ckd_name = "ccc_object_kmem",
- .ckd_size = sizeof (struct ccc_object)
- },
- {
.ckd_cache = &ccc_thread_kmem,
.ckd_name = "ccc_thread_kmem",
.ckd_size = sizeof (struct ccc_thread_info),
},
{
- .ckd_cache = &ccc_session_kmem,
- .ckd_name = "ccc_session_kmem",
- .ckd_size = sizeof (struct ccc_session)
- },
- {
.ckd_cache = &ccc_req_kmem,
.ckd_name = "ccc_req_kmem",
.ckd_size = sizeof (struct ccc_req)
OBD_SLAB_FREE_PTR(info, ccc_thread_kmem);
}
-void *ccc_session_key_init(const struct lu_context *ctx,
- struct lu_context_key *key)
-{
- struct ccc_session *session;
-
- OBD_SLAB_ALLOC_PTR_GFP(session, ccc_session_kmem, GFP_NOFS);
- if (session == NULL)
- session = ERR_PTR(-ENOMEM);
- return session;
-}
-
-void ccc_session_key_fini(const struct lu_context *ctx,
- struct lu_context_key *key, void *data)
-{
- struct ccc_session *session = data;
- OBD_SLAB_FREE_PTR(session, ccc_session_kmem);
-}
-
struct lu_context_key ccc_key = {
.lct_tags = LCT_CL_THREAD,
.lct_init = ccc_key_init,
.lct_fini = ccc_key_fini
};
-struct lu_context_key ccc_session_key = {
- .lct_tags = LCT_SESSION,
- .lct_init = ccc_session_key_init,
- .lct_fini = ccc_session_key_fini
-};
-
-
-/* type constructor/destructor: ccc_type_{init,fini,start,stop}(). */
-// LU_TYPE_INIT_FINI(ccc, &ccc_key, &ccc_session_key);
-
-int ccc_device_init(const struct lu_env *env, struct lu_device *d,
- const char *name, struct lu_device *next)
-{
- struct ccc_device *vdv;
- int rc;
- ENTRY;
-
- vdv = lu2ccc_dev(d);
- vdv->cdv_next = lu2cl_dev(next);
-
- LASSERT(d->ld_site != NULL && next->ld_type != NULL);
- next->ld_site = d->ld_site;
- rc = next->ld_type->ldt_ops->ldto_device_init(
- env, next, next->ld_type->ldt_name, NULL);
- if (rc == 0) {
- lu_device_get(next);
- lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init);
- }
- RETURN(rc);
-}
-
-struct lu_device *ccc_device_fini(const struct lu_env *env,
- struct lu_device *d)
-{
- return cl2lu_dev(lu2ccc_dev(d)->cdv_next);
-}
-
-struct lu_device *ccc_device_alloc(const struct lu_env *env,
- struct lu_device_type *t,
- struct lustre_cfg *cfg,
- const struct lu_device_operations *luops,
- const struct cl_device_operations *clops)
-{
- struct ccc_device *vdv;
- struct lu_device *lud;
- struct cl_site *site;
- int rc;
- ENTRY;
-
- OBD_ALLOC_PTR(vdv);
- if (vdv == NULL)
- RETURN(ERR_PTR(-ENOMEM));
-
- lud = &vdv->cdv_cl.cd_lu_dev;
- cl_device_init(&vdv->cdv_cl, t);
- ccc2lu_dev(vdv)->ld_ops = luops;
- vdv->cdv_cl.cd_ops = clops;
-
- OBD_ALLOC_PTR(site);
- if (site != NULL) {
- rc = cl_site_init(site, &vdv->cdv_cl);
- if (rc == 0)
- rc = lu_site_init_finish(&site->cs_lu);
- else {
- LASSERT(lud->ld_site == NULL);
- CERROR("Cannot init lu_site, rc %d.\n", rc);
- OBD_FREE_PTR(site);
- }
- } else
- rc = -ENOMEM;
- if (rc != 0) {
- ccc_device_free(env, lud);
- lud = ERR_PTR(rc);
- }
- RETURN(lud);
-}
-
-struct lu_device *ccc_device_free(const struct lu_env *env,
- struct lu_device *d)
-{
- struct ccc_device *vdv = lu2ccc_dev(d);
- struct cl_site *site = lu2cl_site(d->ld_site);
- struct lu_device *next = cl2lu_dev(vdv->cdv_next);
-
- if (d->ld_site != NULL) {
- cl_site_fini(site);
- OBD_FREE_PTR(site);
- }
- cl_device_fini(lu2cl_dev(d));
- OBD_FREE_PTR(vdv);
- return next;
-}
-
int ccc_req_init(const struct lu_env *env, struct cl_device *dev,
struct cl_req *req)
{
/*****************************************************************************
*
- * Object operations.
- *
- */
-
-struct lu_object *ccc_object_alloc(const struct lu_env *env,
- const struct lu_object_header *unused,
- struct lu_device *dev,
- const struct cl_object_operations *clops,
- const struct lu_object_operations *luops)
-{
- struct ccc_object *vob;
- struct lu_object *obj;
-
- OBD_SLAB_ALLOC_PTR_GFP(vob, ccc_object_kmem, GFP_NOFS);
- if (vob != NULL) {
- struct cl_object_header *hdr;
-
- obj = ccc2lu(vob);
- hdr = &vob->cob_header;
- cl_object_header_init(hdr);
- hdr->coh_page_bufsize = cfs_size_round(sizeof(struct cl_page));
-
- lu_object_init(obj, &hdr->coh_lu, dev);
- lu_object_add_top(&hdr->coh_lu, obj);
-
- vob->cob_cl.co_ops = clops;
- obj->lo_ops = luops;
- } else
- obj = NULL;
- return obj;
-}
-
-int ccc_object_init0(const struct lu_env *env,
- struct ccc_object *vob,
- const struct cl_object_conf *conf)
-{
- vob->cob_inode = conf->coc_inode;
- vob->cob_transient_pages = 0;
- cl_object_page_init(&vob->cob_cl, sizeof(struct ccc_page));
- return 0;
-}
-
-int ccc_object_init(const struct lu_env *env, struct lu_object *obj,
- const struct lu_object_conf *conf)
-{
- struct ccc_device *dev = lu2ccc_dev(obj->lo_dev);
- struct ccc_object *vob = lu2ccc(obj);
- struct lu_object *below;
- struct lu_device *under;
- int result;
-
- under = &dev->cdv_next->cd_lu_dev;
- below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under);
- if (below != NULL) {
- const struct cl_object_conf *cconf;
-
- cconf = lu2cl_conf(conf);
- CFS_INIT_LIST_HEAD(&vob->cob_pending_list);
- lu_object_add(obj, below);
- result = ccc_object_init0(env, vob, cconf);
- } else
- result = -ENOMEM;
- return result;
-}
-
-void ccc_object_free(const struct lu_env *env, struct lu_object *obj)
-{
- struct ccc_object *vob = lu2ccc(obj);
-
- lu_object_fini(obj);
- lu_object_header_fini(obj->lo_header);
- OBD_SLAB_FREE_PTR(vob, ccc_object_kmem);
-}
-
-int ccc_lock_init(const struct lu_env *env,
- struct cl_object *obj, struct cl_lock *lock,
- const struct cl_io *unused,
- const struct cl_lock_operations *lkops)
-{
- struct ccc_lock *clk;
- int result;
-
- CLOBINVRNT(env, obj, ccc_object_invariant(obj));
-
- OBD_SLAB_ALLOC_PTR_GFP(clk, ccc_lock_kmem, GFP_NOFS);
- if (clk != NULL) {
- cl_lock_slice_add(lock, &clk->clk_cl, obj, lkops);
- result = 0;
- } else
- result = -ENOMEM;
- return result;
-}
-
-int ccc_attr_set(const struct lu_env *env, struct cl_object *obj,
- const struct cl_attr *attr, unsigned valid)
-{
- return 0;
-}
-
-int ccc_object_glimpse(const struct lu_env *env,
- const struct cl_object *obj, struct ost_lvb *lvb)
-{
- struct inode *inode = ccc_object_inode(obj);
-
- ENTRY;
- lvb->lvb_mtime = cl_inode_mtime(inode);
- lvb->lvb_atime = cl_inode_atime(inode);
- lvb->lvb_ctime = cl_inode_ctime(inode);
- /*
- * LU-417: Add dirty pages block count lest i_blocks reports 0, some
- * "cp" or "tar" on remote node may think it's a completely sparse file
- * and skip it.
- */
- if (lvb->lvb_size > 0 && lvb->lvb_blocks == 0)
- lvb->lvb_blocks = dirty_cnt(inode);
- RETURN(0);
-}
-
-
-
-int ccc_conf_set(const struct lu_env *env, struct cl_object *obj,
- const struct cl_object_conf *conf)
-{
- /* TODO: destroy all pages attached to this object. */
- return 0;
-}
-
-static void ccc_object_size_lock(struct cl_object *obj)
-{
- struct inode *inode = ccc_object_inode(obj);
-
- cl_isize_lock(inode);
- cl_object_attr_lock(obj);
-}
-
-static void ccc_object_size_unlock(struct cl_object *obj)
-{
- struct inode *inode = ccc_object_inode(obj);
-
- cl_object_attr_unlock(obj);
- cl_isize_unlock(inode);
-}
-
-/*****************************************************************************
- *
- * Page operations.
- *
- */
-
-int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice)
-{
- /*
- * Cached read?
- */
- LBUG();
- return 0;
-}
-
-void ccc_transient_page_verify(const struct cl_page *page)
-{
-}
-
-int ccc_transient_page_own(const struct lu_env *env,
- const struct cl_page_slice *slice,
- struct cl_io *unused,
- int nonblock)
-{
- ccc_transient_page_verify(slice->cpl_page);
- return 0;
-}
-
-void ccc_transient_page_assume(const struct lu_env *env,
- const struct cl_page_slice *slice,
- struct cl_io *unused)
-{
- ccc_transient_page_verify(slice->cpl_page);
-}
-
-void ccc_transient_page_unassume(const struct lu_env *env,
- const struct cl_page_slice *slice,
- struct cl_io *unused)
-{
- ccc_transient_page_verify(slice->cpl_page);
-}
-
-void ccc_transient_page_disown(const struct lu_env *env,
- const struct cl_page_slice *slice,
- struct cl_io *unused)
-{
- ccc_transient_page_verify(slice->cpl_page);
-}
-
-void ccc_transient_page_discard(const struct lu_env *env,
- const struct cl_page_slice *slice,
- struct cl_io *unused)
-{
- struct cl_page *page = slice->cpl_page;
-
- ccc_transient_page_verify(slice->cpl_page);
-
- /*
- * For transient pages, remove it from the radix tree.
- */
- cl_page_delete(env, page);
-}
-
-int ccc_transient_page_prep(const struct lu_env *env,
- const struct cl_page_slice *slice,
- struct cl_io *unused)
-{
- ENTRY;
- /* transient page should always be sent. */
- RETURN(0);
-}
-
-/*****************************************************************************
- *
- * Lock operations.
- *
- */
-
-void ccc_lock_delete(const struct lu_env *env,
- const struct cl_lock_slice *slice)
-{
- CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj));
-}
-
-void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice)
-{
- struct ccc_lock *clk = cl2ccc_lock(slice);
- OBD_SLAB_FREE_PTR(clk, ccc_lock_kmem);
-}
-
-int ccc_lock_enqueue(const struct lu_env *env,
- const struct cl_lock_slice *slice,
- struct cl_io *unused, __u32 enqflags)
-{
- CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj));
- return 0;
-}
-
-int ccc_lock_use(const struct lu_env *env, const struct cl_lock_slice *slice)
-{
- CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj));
- return 0;
-}
-
-int ccc_lock_unuse(const struct lu_env *env, const struct cl_lock_slice *slice)
-{
- CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj));
- return 0;
-}
-
-int ccc_lock_wait(const struct lu_env *env, const struct cl_lock_slice *slice)
-{
- CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj));
- return 0;
-}
-
-/**
- * Implementation of cl_lock_operations::clo_fits_into() methods for ccc
- * layer. This function is executed every time io finds an existing lock in
- * the lock cache while creating new lock. This function has to decide whether
- * cached lock "fits" into io.
- *
- * \param slice lock to be checked
- * \param io IO that wants a lock.
- *
- * \see lov_lock_fits_into().
- */
-int ccc_lock_fits_into(const struct lu_env *env,
- const struct cl_lock_slice *slice,
- const struct cl_lock_descr *need,
- const struct cl_io *io)
-{
- const struct cl_lock *lock = slice->cls_lock;
- const struct cl_lock_descr *descr = &lock->cll_descr;
- const struct ccc_io *cio = ccc_env_io(env);
- int result;
-
- ENTRY;
- /*
- * Work around DLM peculiarity: it assumes that glimpse
- * (LDLM_FL_HAS_INTENT) lock is always LCK_PR, and returns reads lock
- * when asked for LCK_PW lock with LDLM_FL_HAS_INTENT flag set. Make
- * sure that glimpse doesn't get CLM_WRITE top-lock, so that it
- * doesn't enqueue CLM_WRITE sub-locks.
- */
- if (cio->cui_glimpse)
- result = descr->cld_mode != CLM_WRITE;
-
- /*
- * Also, don't match incomplete write locks for read, otherwise read
- * would enqueue missing sub-locks in the write mode.
- */
- else if (need->cld_mode != descr->cld_mode)
- result = lock->cll_state >= CLS_ENQUEUED;
- else
- result = 1;
- RETURN(result);
-}
-
-/**
- * Implements cl_lock_operations::clo_state() method for ccc layer, invoked
- * whenever lock state changes. Transfers object attributes, that might be
- * updated as a result of lock acquiring into inode.
- */
-void ccc_lock_state(const struct lu_env *env,
- const struct cl_lock_slice *slice,
- enum cl_lock_state state)
-{
- struct cl_lock *lock = slice->cls_lock;
- ENTRY;
-
- /*
- * Refresh inode attributes when the lock is moving into CLS_HELD
- * state, and only when this is a result of real enqueue, rather than
- * of finding lock in the cache.
- */
- if (state == CLS_HELD && lock->cll_state < CLS_HELD) {
- struct cl_object *obj;
- struct inode *inode;
-
- obj = slice->cls_obj;
- inode = ccc_object_inode(obj);
-
- /* vmtruncate() sets the i_size
- * under both a DLM lock and the
- * ll_inode_size_lock(). If we don't get the
- * ll_inode_size_lock() here we can match the DLM lock and
- * reset i_size. generic_file_write can then trust the
- * stale i_size when doing appending writes and effectively
- * cancel the result of the truncate. Getting the
- * ll_inode_size_lock() after the enqueue maintains the DLM
- * -> ll_inode_size_lock() acquiring order. */
- if (lock->cll_descr.cld_start == 0 &&
- lock->cll_descr.cld_end == CL_PAGE_EOF)
- cl_merge_lvb(env, inode);
- }
- EXIT;
-}
-
-/*****************************************************************************
- *
- * io operations.
- *
- */
-
-void ccc_io_fini(const struct lu_env *env, const struct cl_io_slice *ios)
-{
- struct cl_io *io = ios->cis_io;
-
- CLOBINVRNT(env, io->ci_obj, ccc_object_invariant(io->ci_obj));
-}
-
-int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io,
- __u32 enqflags, enum cl_lock_mode mode,
- pgoff_t start, pgoff_t end)
-{
- struct ccc_io *cio = ccc_env_io(env);
- struct cl_lock_descr *descr = &cio->cui_link.cill_descr;
- struct cl_object *obj = io->ci_obj;
-
- CLOBINVRNT(env, obj, ccc_object_invariant(obj));
- ENTRY;
-
- CDEBUG(D_VFSTRACE, "lock: %d [%lu, %lu]\n", mode, start, end);
-
- memset(&cio->cui_link, 0, sizeof cio->cui_link);
-
- if (cio->cui_fd && (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
- descr->cld_mode = CLM_GROUP;
- descr->cld_gid = cio->cui_fd->fd_grouplock.cg_gid;
- } else {
- descr->cld_mode = mode;
- }
- descr->cld_obj = obj;
- descr->cld_start = start;
- descr->cld_end = end;
- descr->cld_enq_flags = enqflags;
-
- cl_io_lock_add(env, io, &cio->cui_link);
- RETURN(0);
-}
-
-void ccc_io_update_iov(const struct lu_env *env,
- struct ccc_io *cio, struct cl_io *io)
-{
- int i;
- size_t size = io->u.ci_rw.crw_count;
-
- cio->cui_iov_olen = 0;
- if (!cl_is_normalio(env, io) || cio->cui_tot_nrsegs == 0)
- return;
-
- for (i = 0; i < cio->cui_tot_nrsegs; i++) {
- struct iovec *iv = &cio->cui_iov[i];
-
- if (iv->iov_len < size)
- size -= iv->iov_len;
- else {
- if (iv->iov_len > size) {
- cio->cui_iov_olen = iv->iov_len;
- iv->iov_len = size;
- }
- break;
- }
- }
-
- cio->cui_nrsegs = i + 1;
- LASSERTF(cio->cui_tot_nrsegs >= cio->cui_nrsegs,
- "tot_nrsegs: %lu, nrsegs: %lu\n",
- cio->cui_tot_nrsegs, cio->cui_nrsegs);
-}
-
-int ccc_io_one_lock(const struct lu_env *env, struct cl_io *io,
- __u32 enqflags, enum cl_lock_mode mode,
- loff_t start, loff_t end)
-{
- struct cl_object *obj = io->ci_obj;
- return ccc_io_one_lock_index(env, io, enqflags, mode,
- cl_index(obj, start), cl_index(obj, end));
-}
-
-void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios)
-{
- CLOBINVRNT(env, ios->cis_io->ci_obj,
- ccc_object_invariant(ios->cis_io->ci_obj));
-}
-
-void ccc_io_advance(const struct lu_env *env,
- const struct cl_io_slice *ios,
- size_t nob)
-{
- struct ccc_io *cio = cl2ccc_io(env, ios);
- struct cl_io *io = ios->cis_io;
- struct cl_object *obj = ios->cis_io->ci_obj;
-
- CLOBINVRNT(env, obj, ccc_object_invariant(obj));
-
- if (!cl_is_normalio(env, io))
- return;
-
- LASSERT(cio->cui_tot_nrsegs >= cio->cui_nrsegs);
- LASSERT(cio->cui_tot_count >= nob);
-
- cio->cui_iov += cio->cui_nrsegs;
- cio->cui_tot_nrsegs -= cio->cui_nrsegs;
- cio->cui_tot_count -= nob;
-
- /* update the iov */
- if (cio->cui_iov_olen > 0) {
- struct iovec *iv;
-
- cio->cui_iov--;
- cio->cui_tot_nrsegs++;
- iv = &cio->cui_iov[0];
- if (io->ci_continue) {
- iv->iov_base += iv->iov_len;
- LASSERT(cio->cui_iov_olen > iv->iov_len);
- iv->iov_len = cio->cui_iov_olen - iv->iov_len;
- } else {
- /* restore the iov_len, in case of restart io. */
- iv->iov_len = cio->cui_iov_olen;
- }
- cio->cui_iov_olen = 0;
- }
-}
-
-/**
- * Helper function that if necessary adjusts file size (inode->i_size), when
- * position at the offset \a pos is accessed. File size can be arbitrary stale
- * on a Lustre client, but client at least knows KMS. If accessed area is
- * inside [0, KMS], set file size to KMS, otherwise glimpse file size.
- *
- * Locking: cl_isize_lock is used to serialize changes to inode size and to
- * protect consistency between inode size and cl_object
- * attributes. cl_object_size_lock() protects consistency between cl_attr's of
- * top-object and sub-objects.
- */
-int ccc_prep_size(const struct lu_env *env, struct cl_object *obj,
- struct cl_io *io, loff_t start, size_t count, int *exceed)
-{
- struct cl_attr *attr = ccc_env_thread_attr(env);
- struct inode *inode = ccc_object_inode(obj);
- loff_t pos = start + count - 1;
- loff_t kms;
- int result;
-
- /*
- * Consistency guarantees: following possibilities exist for the
- * relation between region being accessed and real file size at this
- * moment:
- *
- * (A): the region is completely inside of the file;
- *
- * (B-x): x bytes of region are inside of the file, the rest is
- * outside;
- *
- * (C): the region is completely outside of the file.
- *
- * This classification is stable under DLM lock already acquired by
- * the caller, because to change the class, other client has to take
- * DLM lock conflicting with our lock. Also, any updates to ->i_size
- * by other threads on this client are serialized by
- * ll_inode_size_lock(). This guarantees that short reads are handled
- * correctly in the face of concurrent writes and truncates.
- */
- ccc_object_size_lock(obj);
- result = cl_object_attr_get(env, obj, attr);
- if (result == 0) {
- kms = attr->cat_kms;
- if (pos > kms) {
- /*
- * A glimpse is necessary to determine whether we
- * return a short read (B) or some zeroes at the end
- * of the buffer (C)
- */
- ccc_object_size_unlock(obj);
- result = cl_glimpse_lock(env, io, inode, obj, 0);
- if (result == 0 && exceed != NULL) {
- /* If objective page index exceed end-of-file
- * page index, return directly. Do not expect
- * kernel will check such case correctly.
- * linux-2.6.18-128.1.1 miss to do that.
- * --bug 17336 */
- loff_t size = cl_isize_read(inode);
- unsigned long cur_index = start >>
- PAGE_CACHE_SHIFT;
-
- if ((size == 0 && cur_index != 0) ||
- (((size - 1) >> PAGE_CACHE_SHIFT) <
- cur_index))
- *exceed = 1;
- }
- return result;
- } else {
- /*
- * region is within kms and, hence, within real file
- * size (A). We need to increase i_size to cover the
- * read region so that generic_file_read() will do its
- * job, but that doesn't mean the kms size is
- * _correct_, it is only the _minimum_ size. If
- * someone does a stat they will get the correct size
- * which will always be >= the kms value here.
- * b=11081
- */
- if (cl_isize_read(inode) < kms) {
- cl_isize_write_nolock(inode, kms);
- CDEBUG(D_VFSTRACE,
- DFID" updating i_size "LPU64"\n",
- PFID(lu_object_fid(&obj->co_lu)),
- (__u64)cl_isize_read(inode));
-
- }
- }
- }
- ccc_object_size_unlock(obj);
- return result;
-}
-
-/*****************************************************************************
- *
* Transfer operations.
*
*/
* 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, obd_valid flags)
+ const struct cl_req_slice *slice,
+ const struct cl_object *obj,
+ struct cl_req_attr *attr, u64 flags)
{
- struct inode *inode;
- struct obdo *oa;
- obd_flag valid_flags;
+ struct inode *inode;
+ struct obdo *oa;
+ u32 valid_flags;
oa = attr->cra_oa;
- inode = ccc_object_inode(obj);
+ inode = vvp_object_inode(obj);
valid_flags = OBD_MD_FLTYPE;
if ((flags & OBD_MD_FLOSSCAPA) != 0) {
if (slice->crs_req->crq_type == CRT_WRITE) {
if (flags & OBD_MD_FLEPOCH) {
oa->o_valid |= OBD_MD_FLEPOCH;
- oa->o_ioepoch = cl_i2info(inode)->lli_ioepoch;
+ 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, &cl_i2info(inode)->lli_fid);
+ obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid);
if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_INVALID_PFID))
oa->o_parent_oid++;
-#ifdef __KERNEL__
- memcpy(attr->cra_jobid, cl_i2info(inode)->lli_jobid,
- JOBSTATS_JOBID_SIZE);
-#endif
+ memcpy(attr->cra_jobid, ll_i2info(inode)->lli_jobid,
+ LUSTRE_JOBID_SIZE);
}
static const struct cl_req_operations ccc_req_ops = {
RETURN(PTR_ERR(env));
io = ccc_env_thread_io(env);
- io->ci_obj = cl_i2info(inode)->lli_clob;
+ io->ci_obj = ll_i2info(inode)->lli_clob;
- 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_size = attr->ia_size;
- io->u.ci_setattr.sa_valid = attr->ia_valid;
- io->u.ci_setattr.sa_capa = capa;
+ 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_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;
again:
if (cl_io_init(env, io, CIT_SETATTR, io->ci_obj) == 0) {
- struct ccc_io *cio = ccc_env_io(env);
+ 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 */
- cio->cui_fd = cl_iattr2fd(inode, attr);
+ 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);
result = cl_io_loop(env, io);
} else {
*
*/
-struct lu_device *ccc2lu_dev(struct ccc_device *vdv)
-{
- return &vdv->cdv_cl.cd_lu_dev;
-}
-
-struct ccc_device *lu2ccc_dev(const struct lu_device *d)
-{
- return container_of0(d, struct ccc_device, cdv_cl.cd_lu_dev);
-}
-
-struct ccc_device *cl2ccc_dev(const struct cl_device *d)
-{
- return container_of0(d, struct ccc_device, cdv_cl);
-}
-
-struct lu_object *ccc2lu(struct ccc_object *vob)
-{
- return &vob->cob_cl.co_lu;
-}
-
-struct ccc_object *lu2ccc(const struct lu_object *obj)
-{
- return container_of0(obj, struct ccc_object, cob_cl.co_lu);
-}
-
-struct ccc_object *cl2ccc(const struct cl_object *obj)
-{
- return container_of0(obj, struct ccc_object, cob_cl);
-}
-
-struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice)
-{
- return container_of(slice, struct ccc_lock, clk_cl);
-}
-
-struct ccc_io *cl2ccc_io(const struct lu_env *env,
- const struct cl_io_slice *slice)
-{
- struct ccc_io *cio;
-
- cio = container_of(slice, struct ccc_io, cui_cl);
- LASSERT(cio == ccc_env_io(env));
- return cio;
-}
-
struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice)
{
return container_of0(slice, struct ccc_req, crq_cl);
}
-struct page *cl2vm_page(const struct cl_page_slice *slice)
-{
- return cl2ccc_page(slice)->cpg_page;
-}
-
-/*****************************************************************************
- *
- * Accessors.
- *
- */
-int ccc_object_invariant(const struct cl_object *obj)
-{
- struct inode *inode = ccc_object_inode(obj);
- struct cl_inode_info *lli = cl_i2info(inode);
-
- return (S_ISREG(cl_inode_mode(inode)) ||
- /* i_mode of unlinked inode is zeroed. */
- cl_inode_mode(inode) == 0) && lli->lli_clob == obj;
-}
-
-struct inode *ccc_object_inode(const struct cl_object *obj)
-{
- return cl2ccc(obj)->cob_inode;
-}
-
-/**
- * Returns a pointer to cl_page associated with \a vmpage, without acquiring
- * additional reference to the resulting page. This is an unsafe version of
- * cl_vmpage_page() that can only be used under vmpage lock.
- */
-struct cl_page *ccc_vmpage_page_transient(struct page *vmpage)
-{
- KLASSERT(PageLocked(vmpage));
- return (struct cl_page *)vmpage->private;
-}
-
/**
* Initialize or update CLIO structures for regular files when new
* meta-data arrives from the server.
*/
int cl_file_inode_init(struct inode *inode, struct lustre_md *md)
{
- struct lu_env *env;
- struct cl_inode_info *lli;
+ struct lu_env *env;
+ struct ll_inode_info *lli;
struct cl_object *clob;
struct lu_site *site;
struct lu_fid *fid;
int refcheck;
LASSERT(md->body->mbo_valid & OBD_MD_FLID);
- LASSERT(S_ISREG(cl_inode_mode(inode)));
+ LASSERT(S_ISREG(inode->i_mode));
- 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);
- site = cl_i2sbi(inode)->ll_site;
- lli = cl_i2info(inode);
+ site = ll_i2sbi(inode)->ll_site;
+ lli = ll_i2info(inode);
fid = &lli->lli_fid;
LASSERT(fid_is_sane(fid));
* 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. */
-#ifdef __KERNEL__
LASSERT(inode->i_state & I_NEW);
-#endif
conf.coc_lu.loc_flags = LOC_F_NEW;
clob = cl_object_find(env, lu2cl_dev(site->ls_top_dev),
fid, &conf);
void cl_inode_fini(struct inode *inode)
{
- struct lu_env *env;
- struct cl_inode_info *lli = cl_i2info(inode);
+ struct lu_env *env;
+ struct ll_inode_info *lli = ll_i2info(inode);
struct cl_object *clob = lli->lli_clob;
int refcheck;
int emergency;
* inside layout lock - MDS_INODELOCK_LAYOUT. */
struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode)
{
- return lov_lsm_get(cl_i2info(inode)->lli_clob);
+ return lov_lsm_get(ll_i2info(inode)->lli_clob);
}
void inline ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm)
{
- lov_lsm_put(cl_i2info(inode)->lli_clob, lsm);
+ lov_lsm_put(ll_i2info(inode)->lli_clob, lsm);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff