LU-3335 osd: use local transaction directly inside OSD

For OSD internal function, it is unnecessay to call dt_trans_xxx for
transaction operations. Instead, call backend journal APIs directly.

Signed-off-by: Fan Yong <fan.yong@intel.com>
Change-Id: I111c52f76a894e4269ad8ac6aec3ea7747ba4f59

diff --git a/lustre/osd-ldiskfs/osd_compat.c b/lustre/osd-ldiskfs/osd_compat.c
index f7fbe79..52694dd 100644 (file)
--- a/lustre/osd-ldiskfs/osd_compat.c
+++ b/lustre/osd-ldiskfs/osd_compat.c
@@ -531,10 +531,9 @@ static int osd_obj_update_entry(struct osd_thread_info *info,
                                struct dentry *dir, const char *name,
                                const struct lu_fid *fid,
                                const struct osd_inode_id *id,
-                               struct thandle *th)
+                               handle_t *th)
 {
        struct inode               *parent = dir->d_inode;
-       struct osd_thandle         *oh;
        struct dentry              *child;
        struct ldiskfs_dir_entry_2 *de;
        struct buffer_head         *bh;
@@ -546,9 +545,8 @@ static int osd_obj_update_entry(struct osd_thread_info *info,
        int                         rc;
        ENTRY;
 
-       oh = container_of(th, struct osd_thandle, ot_super);
-       LASSERT(oh->ot_handle != NULL);
-       LASSERT(oh->ot_handle->h_transaction != NULL);
+       LASSERT(th != NULL);
+       LASSERT(th->h_transaction != NULL);
 
        child = &info->oti_child_dentry;
        child->d_parent = dir;
@@ -609,12 +607,12 @@ update:
         * is still valid. Since it was referenced by an invalid entry,
         * making it as invisible temporary may be not worse. OI scrub
         * will process it later. */
-       rc = ldiskfs_journal_get_write_access(oh->ot_handle, bh);
+       rc = ldiskfs_journal_get_write_access(th, bh);
        if (rc != 0)
                GOTO(out, rc);
 
        de->inode = cpu_to_le32(id->oii_ino);
-       rc = ldiskfs_journal_dirty_metadata(oh->ot_handle, bh);
+       rc = ldiskfs_journal_dirty_metadata(th, bh);
 
        GOTO(out, rc);
 
@@ -627,19 +625,17 @@ out:
 static int osd_obj_del_entry(struct osd_thread_info *info,
                             struct osd_device *osd,
                             struct dentry *dird, char *name,
-                            struct thandle *th)
+                            handle_t *th)
 {
        struct ldiskfs_dir_entry_2 *de;
        struct buffer_head         *bh;
-       struct osd_thandle         *oh;
        struct dentry              *child;
        struct inode               *dir = dird->d_inode;
        int                         rc;
        ENTRY;
 
-       oh = container_of(th, struct osd_thandle, ot_super);
-       LASSERT(oh->ot_handle != NULL);
-       LASSERT(oh->ot_handle->h_transaction != NULL);
+       LASSERT(th != NULL);
+       LASSERT(th->h_transaction != NULL);
 
 
        child = &info->oti_child_dentry;
@@ -654,7 +650,7 @@ static int osd_obj_del_entry(struct osd_thread_info *info,
        rc = -ENOENT;
        bh = osd_ldiskfs_find_entry(dir, child, &de, NULL);
        if (bh) {
-               rc = ldiskfs_delete_entry(oh->ot_handle, dir, de, bh);
+               rc = ldiskfs_delete_entry(th, dir, de, bh);
                brelse(bh);
        }
        mutex_unlock(&dir->i_mutex);
@@ -666,9 +662,8 @@ int osd_obj_add_entry(struct osd_thread_info *info,
                      struct osd_device *osd,
                      struct dentry *dir, char *name,
                      const struct osd_inode_id *id,
-                     struct thandle *th)
+                     handle_t *th)
 {
-       struct osd_thandle *oh;
        struct dentry *child;
        struct inode *inode;
        int rc;
@@ -678,9 +673,8 @@ int osd_obj_add_entry(struct osd_thread_info *info,
        if (OBD_FAIL_CHECK(OBD_FAIL_OSD_COMPAT_NO_ENTRY))
                RETURN(0);
 
-       oh = container_of(th, struct osd_thandle, ot_super);
-       LASSERT(oh->ot_handle != NULL);
-       LASSERT(oh->ot_handle->h_transaction != NULL);
+       LASSERT(th != NULL);
+       LASSERT(th->h_transaction != NULL);
 
        inode = &info->oti_inode;
        inode->i_sb = osd_sb(osd);
@@ -699,7 +693,7 @@ int osd_obj_add_entry(struct osd_thread_info *info,
 
        ll_vfs_dq_init(dir->d_inode);
        mutex_lock(&dir->d_inode->i_mutex);
-       rc = osd_ldiskfs_add_entry(oh->ot_handle, child, inode, NULL);
+       rc = osd_ldiskfs_add_entry(th, child, inode, NULL);
        mutex_unlock(&dir->d_inode->i_mutex);
 
        RETURN(rc);
@@ -936,7 +930,7 @@ int osd_obj_map_insert(struct osd_thread_info *info,
                       struct osd_device *osd,
                       const struct lu_fid *fid,
                       const struct osd_inode_id *id,
-                      struct thandle *th)
+                      handle_t *th)
 {
        struct osd_obj_map      *map;
        struct osd_obj_seq      *osd_seq;
@@ -979,7 +973,7 @@ again:
 }
 
 int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
-                      const struct lu_fid *fid, struct thandle *th)
+                      const struct lu_fid *fid, handle_t *th)
 {
        struct osd_obj_map      *map;
        struct osd_obj_seq      *osd_seq;
@@ -1013,7 +1007,7 @@ int osd_obj_map_update(struct osd_thread_info *info,
                       struct osd_device *osd,
                       const struct lu_fid *fid,
                       const struct osd_inode_id *id,
-                      struct thandle *th)
+                      handle_t *th)
 {
        struct osd_obj_seq      *osd_seq;
        struct dentry           *d;
@@ -1118,28 +1112,17 @@ int osd_obj_map_recover(struct osd_thread_info *info,
                 *      So keep it there before we have suitable solution. */
                brelse(bh);
                mutex_unlock(&dir->i_mutex);
+               mutex_unlock(&src_parent->i_mutex);
+               ldiskfs_journal_stop(jh);
 
                rc = -EEXIST;
                /* If the src object has never been modified, then remove it. */
                if (inode->i_size == 0 && inode->i_mode & S_ISUID &&
                    inode->i_mode & S_ISGID) {
-                       bh = osd_ldiskfs_find_entry(src_parent, src_child, &de,
-                                                   NULL);
-                       if (unlikely(bh == NULL)) {
-                               mutex_unlock(&src_parent->i_mutex);
-                               ldiskfs_journal_stop(jh);
-                               RETURN(0);
-                       }
-
-                       rc = ldiskfs_delete_entry(jh, src_parent, de, bh);
-                       brelse(bh);
-                       if (rc == 0) {
-                               drop_nlink(inode);
-                               ll_dirty_inode(inode, I_DIRTY_DATASYNC);
-                       }
+                       rc = vfs_unlink(src_parent, src_child);
+                       if (unlikely(rc == -ENOENT))
+                               rc = 0;
                }
-               mutex_unlock(&src_parent->i_mutex);
-               ldiskfs_journal_stop(jh);
                RETURN(rc);
        }
 
@@ -1192,7 +1175,7 @@ osd_object_spec_find(struct osd_thread_info *info, struct osd_device *osd,
 
 int osd_obj_spec_update(struct osd_thread_info *info, struct osd_device *osd,
                        const struct lu_fid *fid, const struct osd_inode_id *id,
-                       struct thandle *th)
+                       handle_t *th)
 {
        struct dentry   *root;
        char            *name;
@@ -1213,7 +1196,7 @@ int osd_obj_spec_update(struct osd_thread_info *info, struct osd_device *osd,
 
 int osd_obj_spec_insert(struct osd_thread_info *info, struct osd_device *osd,
                        const struct lu_fid *fid, const struct osd_inode_id *id,
-                       struct thandle *th)
+                       handle_t *th)
 {
        struct dentry   *root;
        char            *name;

diff --git a/lustre/osd-ldiskfs/osd_handler.c b/lustre/osd-ldiskfs/osd_handler.c
index b479ea8..5a011f2 100644 (file)
--- a/lustre/osd-ldiskfs/osd_handler.c
+++ b/lustre/osd-ldiskfs/osd_handler.c
@@ -2212,16 +2212,20 @@ static int __osd_object_create(struct osd_thread_info *info,
  * \retval 0, on success
  */
 static int __osd_oi_insert(const struct lu_env *env, struct osd_object *obj,
-                           const struct lu_fid *fid, struct thandle *th)
+                          const struct lu_fid *fid, struct thandle *th)
 {
-        struct osd_thread_info *info = osd_oti_get(env);
-        struct osd_inode_id    *id   = &info->oti_id;
-        struct osd_device      *osd  = osd_obj2dev(obj);
+       struct osd_thread_info *info = osd_oti_get(env);
+       struct osd_inode_id    *id   = &info->oti_id;
+       struct osd_device      *osd  = osd_obj2dev(obj);
+       struct osd_thandle     *oh;
 
-        LASSERT(obj->oo_inode != NULL);
+       LASSERT(obj->oo_inode != NULL);
+
+       oh = container_of0(th, struct osd_thandle, ot_super);
+       LASSERT(oh->ot_handle);
 
        osd_id_gen(id, obj->oo_inode->i_ino, obj->oo_inode->i_generation);
-       return osd_oi_insert(info, osd, fid, id, th, OI_CHECK_FLD);
+       return osd_oi_insert(info, osd, fid, id, oh->ot_handle, OI_CHECK_FLD);
 }
 
 int osd_fld_lookup(const struct lu_env *env, struct osd_device *osd,
@@ -2428,7 +2432,8 @@ static int osd_object_destroy(const struct lu_env *env,
 
        osd_trans_exec_op(env, th, OSD_OT_DESTROY);
 
-        result = osd_oi_delete(osd_oti_get(env), osd, fid, th, OI_CHECK_FLD);
+       result = osd_oi_delete(osd_oti_get(env), osd, fid, oh->ot_handle,
+                              OI_CHECK_FLD);
 
         /* XXX: add to ext3 orphan list */
         /* rc = ext3_orphan_add(handle_t *handle, struct inode *inode) */

diff --git a/lustre/osd-ldiskfs/osd_internal.h b/lustre/osd-ldiskfs/osd_internal.h
index c460421..f2836da 100644 (file)
--- a/lustre/osd-ldiskfs/osd_internal.h
+++ b/lustre/osd-ldiskfs/osd_internal.h
@@ -655,12 +655,12 @@ int osd_obj_map_lookup(struct osd_thread_info *info, struct osd_device *osd,
                        const struct lu_fid *fid, struct osd_inode_id *id);
 int osd_obj_map_insert(struct osd_thread_info *info, struct osd_device *osd,
                       const struct lu_fid *fid, const struct osd_inode_id *id,
-                      struct thandle *th);
+                      handle_t *th);
 int osd_obj_map_delete(struct osd_thread_info *info, struct osd_device *osd,
-                       const struct lu_fid *fid, struct thandle *th);
+                       const struct lu_fid *fid, handle_t *th);
 int osd_obj_map_update(struct osd_thread_info *info, struct osd_device *osd,
                       const struct lu_fid *fid, const struct osd_inode_id *id,
-                      struct thandle *th);
+                      handle_t *th);
 int osd_obj_map_recover(struct osd_thread_info *info, struct osd_device *osd,
                        struct inode *src_parent, struct dentry *src_child,
                        const struct lu_fid *fid);
@@ -668,10 +668,10 @@ int osd_obj_spec_lookup(struct osd_thread_info *info, struct osd_device *osd,
                        const struct lu_fid *fid, struct osd_inode_id *id);
 int osd_obj_spec_insert(struct osd_thread_info *info, struct osd_device *osd,
                        const struct lu_fid *fid, const struct osd_inode_id *id,
-                       struct thandle *th);
+                       handle_t *th);
 int osd_obj_spec_update(struct osd_thread_info *info, struct osd_device *osd,
                        const struct lu_fid *fid, const struct osd_inode_id *id,
-                       struct thandle *th);
+                       handle_t *th);
 
 void osd_scrub_file_reset(struct osd_scrub *scrub, __u8 *uuid, __u64 flags);
 int osd_scrub_file_store(struct osd_scrub *scrub);

diff --git a/lustre/osd-ldiskfs/osd_oi.c b/lustre/osd-ldiskfs/osd_oi.c
index a7d8581..cc69fe2 100644 (file)
--- a/lustre/osd-ldiskfs/osd_oi.c
+++ b/lustre/osd-ldiskfs/osd_oi.c
@@ -562,11 +562,10 @@ int osd_oi_lookup(struct osd_thread_info *info, struct osd_device *osd,
 
 static int osd_oi_iam_refresh(struct osd_thread_info *oti, struct osd_oi *oi,
                             const struct dt_rec *rec, const struct dt_key *key,
-                            struct thandle *th, bool insert)
+                            handle_t *th, bool insert)
 {
        struct iam_container    *bag;
        struct iam_path_descr   *ipd;
-       struct osd_thandle      *oh;
        int                     rc;
        ENTRY;
 
@@ -579,14 +578,13 @@ static int osd_oi_iam_refresh(struct osd_thread_info *oti, struct osd_oi *oi,
        if (unlikely(ipd == NULL))
                RETURN(-ENOMEM);
 
-       oh = container_of0(th, struct osd_thandle, ot_super);
-       LASSERT(oh->ot_handle != NULL);
-       LASSERT(oh->ot_handle->h_transaction != NULL);
+       LASSERT(th != NULL);
+       LASSERT(th->h_transaction != NULL);
        if (insert)
-               rc = iam_insert(oh->ot_handle, bag, (const struct iam_key *)key,
+               rc = iam_insert(th, bag, (const struct iam_key *)key,
                                (const struct iam_rec *)rec, ipd);
        else
-               rc = iam_update(oh->ot_handle, bag, (const struct iam_key *)key,
+               rc = iam_update(th, bag, (const struct iam_key *)key,
                                (const struct iam_rec *)rec, ipd);
        osd_ipd_put(oti->oti_env, bag, ipd);
        LINVRNT(osd_invariant(obj));
@@ -595,7 +593,7 @@ static int osd_oi_iam_refresh(struct osd_thread_info *oti, struct osd_oi *oi,
 
 int osd_oi_insert(struct osd_thread_info *info, struct osd_device *osd,
                  const struct lu_fid *fid, const struct osd_inode_id *id,
-                 struct thandle *th, enum oi_check_flags flags)
+                 handle_t *th, enum oi_check_flags flags)
 {
        struct lu_fid       *oi_fid = &info->oti_fid2;
        struct osd_inode_id *oi_id  = &info->oti_id2;
@@ -668,36 +666,34 @@ update:
 }
 
 static int osd_oi_iam_delete(struct osd_thread_info *oti, struct osd_oi *oi,
-                             const struct dt_key *key, struct thandle *handle)
+                            const struct dt_key *key, handle_t *th)
 {
-        struct iam_container  *bag;
-        struct iam_path_descr *ipd;
-        struct osd_thandle    *oh;
-        int                    rc;
-        ENTRY;
+       struct iam_container    *bag;
+       struct iam_path_descr   *ipd;
+       int                      rc;
+       ENTRY;
 
-        LASSERT(oi);
+       LASSERT(oi);
        LASSERT(oi->oi_inode);
        ll_vfs_dq_init(oi->oi_inode);
 
-        bag = &oi->oi_dir.od_container;
-        ipd = osd_idx_ipd_get(oti->oti_env, bag);
-        if (unlikely(ipd == NULL))
-                RETURN(-ENOMEM);
+       bag = &oi->oi_dir.od_container;
+       ipd = osd_idx_ipd_get(oti->oti_env, bag);
+       if (unlikely(ipd == NULL))
+               RETURN(-ENOMEM);
 
-        oh = container_of0(handle, struct osd_thandle, ot_super);
-        LASSERT(oh->ot_handle != NULL);
-        LASSERT(oh->ot_handle->h_transaction != NULL);
+       LASSERT(th != NULL);
+       LASSERT(th->h_transaction != NULL);
 
-        rc = iam_delete(oh->ot_handle, bag, (const struct iam_key *)key, ipd);
-        osd_ipd_put(oti->oti_env, bag, ipd);
-        LINVRNT(osd_invariant(obj));
-        RETURN(rc);
+       rc = iam_delete(th, bag, (const struct iam_key *)key, ipd);
+       osd_ipd_put(oti->oti_env, bag, ipd);
+       LINVRNT(osd_invariant(obj));
+       RETURN(rc);
 }
 
 int osd_oi_delete(struct osd_thread_info *info,
                  struct osd_device *osd, const struct lu_fid *fid,
-                 struct thandle *th, enum oi_check_flags flags)
+                 handle_t *th, enum oi_check_flags flags)
 {
        struct lu_fid *oi_fid = &info->oti_fid2;
 
@@ -718,7 +714,7 @@ int osd_oi_delete(struct osd_thread_info *info,
 
 int osd_oi_update(struct osd_thread_info *info, struct osd_device *osd,
                  const struct lu_fid *fid, const struct osd_inode_id *id,
-                 struct thandle *th, enum oi_check_flags flags)
+                 handle_t *th, enum oi_check_flags flags)
 {
        struct lu_fid       *oi_fid = &info->oti_fid2;
        struct osd_inode_id *oi_id  = &info->oti_id2;

diff --git a/lustre/osd-ldiskfs/osd_oi.h b/lustre/osd-ldiskfs/osd_oi.h
index 5ddf162..2e6848f 100644 (file)
--- a/lustre/osd-ldiskfs/osd_oi.h
+++ b/lustre/osd-ldiskfs/osd_oi.h
@@ -53,6 +53,7 @@
 
 /* struct rw_semaphore */
 #include <linux/rwsem.h>
+#include <linux/jbd2.h>
 #include <lustre_fid.h>
 #include <lu_object.h>
 #include <md_object.h>
@@ -65,7 +66,6 @@
 struct lu_fid;
 struct osd_thread_info;
 struct lu_site;
-struct thandle;
 
 struct dt_device;
 struct osd_device;
@@ -145,13 +145,13 @@ int  osd_oi_lookup(struct osd_thread_info *info, struct osd_device *osd,
                   enum oi_check_flags flags);
 int  osd_oi_insert(struct osd_thread_info *info, struct osd_device *osd,
                   const struct lu_fid *fid, const struct osd_inode_id *id,
-                  struct thandle *th, enum oi_check_flags flags);
+                  handle_t *th, enum oi_check_flags flags);
 int  osd_oi_delete(struct osd_thread_info *info,
                   struct osd_device *osd, const struct lu_fid *fid,
-                  struct thandle *th, enum oi_check_flags flags);
+                  handle_t *th, enum oi_check_flags flags);
 int  osd_oi_update(struct osd_thread_info *info, struct osd_device *osd,
                   const struct lu_fid *fid, const struct osd_inode_id *id,
-                  struct thandle *th, enum oi_check_flags flags);
+                  handle_t *th, enum oi_check_flags flags);
 
 int fid_is_on_ost(struct osd_thread_info *info, struct osd_device *osd,
                  const struct lu_fid *fid, enum oi_check_flags flags);

diff --git a/lustre/osd-ldiskfs/osd_scrub.c b/lustre/osd-ldiskfs/osd_scrub.c
index 2658feb..dcdb744 100644 (file)
--- a/lustre/osd-ldiskfs/osd_scrub.c
+++ b/lustre/osd-ldiskfs/osd_scrub.c
@@ -94,30 +94,26 @@ static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
                                     int ops, bool force,
                                     enum oi_check_flags flags)
 {
-       const struct lu_env *env = info->oti_env;
-       struct thandle      *th;
-       struct osd_thandle  *oh;
-       int                  rc;
+       handle_t *th;
+       int       rc;
        ENTRY;
 
        if (dev->od_scrub.os_file.sf_param & SP_DRYRUN && !force)
                RETURN(0);
 
-       th = dt_trans_create(env, &dev->od_dt_dev);
-       if (IS_ERR(th))
-               RETURN(PTR_ERR(th));
-
-       oh = container_of0(th, struct osd_thandle, ot_super);
-       LASSERT(oh->ot_handle == NULL);
+       /* DTO_INDEX_INSERT is enough for other two ops:
+        * delete/update, but save stack. */
+       th = ldiskfs_journal_start_sb(osd_sb(dev),
+                               osd_dto_credits_noquota[DTO_INDEX_INSERT]);
+       if (IS_ERR(th)) {
+               rc = PTR_ERR(th);
+               CERROR("%s: fail to start trans for scrub %d: rc = %d\n",
+                      osd_name(dev), ops, rc);
+               RETURN(rc);
+       }
 
        switch (ops) {
        case DTO_INDEX_UPDATE:
-               osd_trans_declare_op(env, oh, OSD_OT_UPDATE,
-                                    osd_dto_credits_noquota[DTO_INDEX_UPDATE]);
-               rc = dt_trans_start_local(env, &dev->od_dt_dev, th);
-               if (rc != 0)
-                       GOTO(stop, rc);
-
                rc = osd_oi_update(info, dev, fid, id, th, flags);
                if (unlikely(rc == -ENOENT)) {
                        /* Some unlink thread may removed the OI mapping. */
@@ -125,12 +121,6 @@ static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
                }
                break;
        case DTO_INDEX_INSERT:
-               osd_trans_declare_op(env, oh, OSD_OT_INSERT,
-                                    osd_dto_credits_noquota[DTO_INDEX_INSERT]);
-               rc = dt_trans_start_local(env, &dev->od_dt_dev, th);
-               if (rc != 0)
-                       GOTO(stop, rc);
-
                rc = osd_oi_insert(info, dev, fid, id, th, flags);
                if (unlikely(rc == -EEXIST)) {
                        rc = 1;
@@ -168,12 +158,6 @@ static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
                }
                break;
        case DTO_INDEX_DELETE:
-               osd_trans_declare_op(env, oh, OSD_OT_DELETE,
-                                    osd_dto_credits_noquota[DTO_INDEX_DELETE]);
-               rc = dt_trans_start_local(env, &dev->od_dt_dev, th);
-               if (rc != 0)
-                       GOTO(stop, rc);
-
                rc = osd_oi_delete(info, dev, fid, th, flags);
                if (rc == -ENOENT) {
                        /* It is normal that the unlink thread has removed the
@@ -186,10 +170,7 @@ static int osd_scrub_refresh_mapping(struct osd_thread_info *info,
                break;
        }
 
-       GOTO(stop, rc);
-
-stop:
-       dt_trans_stop(env, &dev->od_dt_dev, th);
+       ldiskfs_journal_stop(th);
        return rc;
 }