pbuf = buffer + length; \
} while (0)
-static smfs_pack_rec_func smfs_get_rec_pack_type(struct super_block *sb)
+
+static int smfs_llog_process_rec_cb(struct llog_handle *handle,
+ struct llog_rec_hdr *rec, void *data)
{
- int idx = 0;
- struct smfs_super_info *smsi = S2SMI(sb);
+ char *rec_buf ;
+ struct smfs_proc_args *args = (struct smfs_proc_args *)data;
+ struct lvfs_run_ctxt saved;
+ int rc = 0;
- idx = GET_REC_PACK_TYPE_INDEX(smsi->smsi_flags);
- return smsi->smsi_pack_rec[idx];
-}
+ if (!(le32_to_cpu(handle->lgh_hdr->llh_flags) & LLOG_F_IS_PLAIN)) {
+ CERROR("log is not plain\n");
+ RETURN(-EINVAL);
+ }
-static int smfs_post_kml_rec(struct inode *dir, void *de, void *data1,
- void *data2, int op);
+ if (le32_to_cpu(rec->lrh_type) == LLOG_GEN_REC) {
+ struct llog_cookie cookie;
-static int smfs_rec_post_hook(struct inode *inode, void *dentry,
- void *data1, void *data2, int op, void *handle)
-{
- int rc = 0;
- ENTRY;
+ cookie.lgc_lgl = handle->lgh_id;
+ cookie.lgc_index = le32_to_cpu(rec->lrh_index);
- if (smfs_do_rec(inode))
- rc = smfs_post_kml_rec(inode, dentry, data1, data2, op);
-
- RETURN(rc);
-}
+ llog_cancel(handle->lgh_ctxt, 1, &cookie, 0, NULL);
+ RETURN(LLOG_PROC_BREAK);
+ }
-#define KML_HOOK "kml_hook"
+ if (le32_to_cpu(rec->lrh_type) != SMFS_UPDATE_REC)
+ RETURN(-EINVAL);
-int smfs_rec_init(struct super_block *sb)
-{
- int rc = 0;
- struct smfs_super_info *smfs_info = S2SMI(sb);
- struct smfs_hook_ops *rec_hops = NULL;
- ENTRY;
+ rec_buf = (char*) (rec + 1);
- SMFS_SET_REC(smfs_info);
+ if (!S2SMI(args->sr_sb)->smsi_ctxt)
+ GOTO(exit, rc = -ENODEV);
- rc = ost_rec_pack_init(smfs_info);
- if (rc)
- return rc;
-
- rc = mds_rec_pack_init(smfs_info);
- if (rc)
- return rc;
-
- rec_hops = smfs_alloc_hook_ops(KML_HOOK, NULL, smfs_rec_post_hook);
- if (!rec_hops) {
- RETURN(-ENOMEM);
+ push_ctxt(&saved, S2SMI(args->sr_sb)->smsi_ctxt, NULL);
+#if 0
+ /*FIXME later should first unpack the rec,
+ * then call lvfs_reint or lvfs_undo
+ * kml rec format has changed lvfs_reint lvfs_undo should
+ * be rewrite FIXME later*/
+ if (SMFS_DO_REINT_REC(args->sr_flags))
+ rc = lvfs_reint(args->sr_sb, rec_buf);
+ else
+ rc = lvfs_undo(args->sr_sb, rec_buf);
+#endif
+ if (!rc && !SMFS_DO_REC_ALL(args->sr_flags)) {
+ args->sr_count --;
+ if (args->sr_count == 0)
+ rc = LLOG_PROC_BREAK;
}
- rc = smfs_register_hook_ops(smfs_info, rec_hops);
- if (rc && rec_hops) {
- smfs_unregister_hook_ops(smfs_info, rec_hops->smh_name);
- smfs_free_hook_ops(rec_hops);
- }
+ pop_ctxt(&saved, S2SMI(args->sr_sb)->smsi_ctxt, NULL);
+exit:
RETURN(rc);
}
-int smfs_rec_cleanup(struct smfs_super_info *smfs_info)
+static smfs_pack_rec_func smfs_get_rec_pack_type(struct super_block *sb)
{
- struct smfs_hook_ops *rec_hops;
- int rc = 0;
- ENTRY;
+ int idx = 0;
+ struct smfs_super_info *smsi = S2SMI(sb);
- rec_hops = smfs_unregister_hook_ops(smfs_info, KML_HOOK);
- smfs_free_hook_ops(rec_hops);
- SMFS_CLEAN_REC(smfs_info);
-
- RETURN(rc);
+ idx = GET_REC_PACK_TYPE_INDEX(smsi->smsi_flags);
+ return smsi->smsi_pack_rec[idx];
}
static inline void
}
EXPORT_SYMBOL(smfs_rec_unpack);
-int smfs_start_rec(struct super_block *sb, struct vfsmount *mnt)
-{
- struct dentry *dentry;
- struct lvfs_run_ctxt saved;
- int rc = 0;
- ENTRY;
-
- if (SMFS_INIT_REC(S2SMI(sb)) ||
- (!SMFS_DO_REC(S2SMI(sb)) && !SMFS_CACHE_HOOK(S2SMI(sb))))
- RETURN(rc);
-
- rc = smfs_llog_setup(sb, mnt);
- if (rc)
- RETURN(rc);
- push_ctxt(&saved, S2SMI(sb)->smsi_ctxt, NULL);
- dentry = simple_mkdir(current->fs->pwd, "DELETE", 0777, 1);
- if (IS_ERR(dentry)) {
- rc = PTR_ERR(dentry);
- CERROR("cannot create DELETE directory: rc = %d\n", rc);
- GOTO(err_exit, rc = -EINVAL);
- }
- S2SMI(sb)->smsi_delete_dir = dentry;
-
- if (!rc)
- SMFS_SET_INIT_REC(S2SMI(sb));
-exit:
- pop_ctxt(&saved, S2SMI(sb)->smsi_ctxt, NULL);
- RETURN(rc);
-err_exit:
- if (S2SMI(sb)->smsi_ctxt)
- OBD_FREE(S2SMI(sb)->smsi_ctxt, sizeof(struct lvfs_run_ctxt));
- goto exit;
-}
-EXPORT_SYMBOL(smfs_start_rec);
-
-int smfs_post_setup(struct super_block *sb, struct vfsmount *mnt)
-{
- struct lvfs_run_ctxt *current_ctxt = NULL;
- struct smfs_super_info *smb = S2SMI(sb);
- ENTRY;
-
- OBD_ALLOC(current_ctxt, sizeof(*current_ctxt));
- if (!current_ctxt)
- RETURN(-ENOMEM);
- OBD_SET_CTXT_MAGIC(current_ctxt);
-
- current_ctxt->pwdmnt = mnt;
- current_ctxt->pwd = mnt->mnt_root;
- current_ctxt->fs = get_ds();
- smb->smsi_ctxt = current_ctxt;
-
- RETURN(0);
-}
-EXPORT_SYMBOL(smfs_post_setup);
-
-int smfs_post_cleanup(struct super_block *sb)
-{
- struct smfs_super_info *smb = S2SMI(sb);
- ENTRY;
-
- if (smb->smsi_ctxt)
- OBD_FREE(S2SMI(sb)->smsi_ctxt, sizeof(struct lvfs_run_ctxt));
- RETURN(0);
-}
-EXPORT_SYMBOL(smfs_post_cleanup);
-
-int smfs_stop_rec(struct super_block *sb)
-{
- int rc = 0;
- ENTRY;
-
- if (!SMFS_INIT_REC(S2SMI(sb)) ||
- (!SMFS_DO_REC(S2SMI(sb)) && !SMFS_CACHE_HOOK(S2SMI(sb))))
- RETURN(rc);
-
- rc = smfs_llog_cleanup(sb);
-
- SMFS_CLEAN_INIT_REC(S2SMI(sb));
-
- if (S2SMI(sb)->smsi_delete_dir) {
- l_dput(S2SMI(sb)->smsi_delete_dir);
- S2SMI(sb)->smsi_delete_dir = NULL;
- }
- RETURN(rc);
-}
-EXPORT_SYMBOL(smfs_stop_rec);
-
int smfs_write_extents(struct inode *dir, struct dentry *dentry,
unsigned long from, unsigned long num)
{
}
EXPORT_SYMBOL(smfs_rec_setattr);
-int smfs_rec_md(struct inode *inode, void *lmm, int lmm_size,
- enum ea_type type)
+int smfs_rec_md(struct inode *inode, void *lmm, int lmm_size)
{
char *set_lmm = NULL;
- int rc = 0;
+ int rc = 0;
ENTRY;
if (!SMFS_DO_REC(S2SMI(inode->i_sb)))
RETURN(0);
if (lmm) {
- int size = lmm_size + sizeof(lmm_size) +
- sizeof(type);
-
- OBD_ALLOC(set_lmm, size);
+ OBD_ALLOC(set_lmm, lmm_size + sizeof(lmm_size));
if (!set_lmm)
RETURN(-ENOMEM);
-
memcpy(set_lmm, &lmm_size, sizeof(lmm_size));
- memcpy(set_lmm + sizeof(lmm_size), &type, sizeof(type));
- memcpy(set_lmm + sizeof(lmm_size) + sizeof(type), lmm, lmm_size);
-
+ memcpy(set_lmm + sizeof(lmm_size), lmm, lmm_size);
rc = smfs_post_rec_setattr(inode, NULL, NULL, set_lmm);
if (rc) {
- CERROR("Error: Record md for inode %lu rc = %d\n",
+ CERROR("Error: Record md for inode %lu rc=%d\n",
inode->i_ino, rc);
}
- OBD_FREE(set_lmm, size);
}
+ if (set_lmm)
+ OBD_FREE(set_lmm, lmm_size + sizeof(lmm_size));
RETURN(rc);
}
EXPORT_SYMBOL(smfs_rec_md);
args.sr_count = count;
args.sr_data = dir;
args.sr_flags = flags ;
- ctxt = S2SMI(sb)->smsi_rec_log;
+ ctxt = S2SMI(sb)->smsi_kml_log;
loghandle = ctxt->loc_handle;
if (count == 0) {
}
int smfs_post_rec_setattr(struct inode *inode, struct dentry *dentry,
- void *data1, void *data2)
+ void *data1, void *data2)
{
+ struct smfs_super_info *sinfo;
struct iattr *attr = (struct iattr *)data1;
+ char *buffer = NULL, *pbuf;
int rc = 0, length = 0, buf_len = 0;
- struct smfs_super_info *sinfo;
- char *buffer = NULL, *pbuf;
ENTRY;
sinfo = S2SMI(inode->i_sb);
RETURN(rc);
}
-typedef int (*post_kml_rec)(struct inode *dir, struct dentry *dentry,
- void *data1, void *data2);
+/* new plugin API */
+struct kml_priv {
+ struct dentry * kml_llog_dir;
+};
+
+static int kml_create(struct inode * inode, void *arg)
+{
+ struct hook_msg * msg = arg;
+ return smfs_post_rec_create(inode, msg->dentry, NULL, NULL);
+}
+
+static int kml_link(struct inode * inode, void *arg)
+{
+ struct hook_link_msg * msg = arg;
+ return smfs_post_rec_link(inode, msg->dentry, msg->new_dentry, NULL);
+}
+
+static int kml_unlink(struct inode * inode, void *arg)
+{
+ struct hook_unlink_msg * msg = arg;
+ return smfs_post_rec_unlink(inode, msg->dentry, &msg->mode, NULL);
+}
+
+static int kml_symlink(struct inode * inode, void *arg)
+{
+ struct hook_symlink_msg * msg = arg;
+ return smfs_post_rec_create(inode, msg->dentry, &msg->tgt_len,
+ msg->symname);
+}
+
+static int kml_rename(struct inode * inode, void *arg)
+{
+ struct hook_rename_msg * msg = arg;
+ return smfs_post_rec_rename(inode, msg->dentry, msg->new_dir,
+ msg->new_dentry);
+}
+
+static int kml_setattr(struct inode * inode, void *arg)
+{
+ struct hook_setattr_msg * msg = arg;
+ return smfs_post_rec_setattr(inode, msg->dentry, msg->attr, NULL);
+}
+
+static int kml_write(struct inode * inode, void *arg)
+{
+ struct hook_write_msg * msg = arg;
+ return smfs_post_rec_write(inode, msg->dentry, &msg->count, &msg->pos);
+}
-static post_kml_rec smfs_kml_post[HOOK_MAX + 1] = {
- [HOOK_CREATE] smfs_post_rec_create,
+typedef int (*post_kml_op)(struct inode * inode, void *msg);
+static post_kml_op smfs_kml_post[HOOK_MAX] = {
+ [HOOK_CREATE] kml_create,
[HOOK_LOOKUP] NULL,
- [HOOK_LINK] smfs_post_rec_link,
- [HOOK_UNLINK] smfs_post_rec_unlink,
- [HOOK_SYMLINK] smfs_post_rec_create,
- [HOOK_MKDIR] smfs_post_rec_create,
- [HOOK_RMDIR] smfs_post_rec_unlink,
- [HOOK_MKNOD] smfs_post_rec_create,
- [HOOK_RENAME] smfs_post_rec_rename,
- [HOOK_SETATTR] smfs_post_rec_setattr,
- [HOOK_WRITE] smfs_post_rec_write,
+ [HOOK_LINK] kml_link,
+ [HOOK_UNLINK] kml_unlink,
+ [HOOK_SYMLINK] kml_symlink,
+ [HOOK_MKDIR] kml_create,
+ [HOOK_RMDIR] kml_unlink,
+ [HOOK_MKNOD] kml_create,
+ [HOOK_RENAME] kml_rename,
+ [HOOK_SETATTR] kml_setattr,
+ [HOOK_WRITE] kml_write,
[HOOK_READDIR] NULL,
};
-static int smfs_post_kml_rec(struct inode *dir, void *de, void *data1,
- void *data2, int op)
+
+static int smfs_kml_post_op(int code, struct inode * inode,
+ void * msg, int ret, void * priv)
{
- if (smfs_kml_post[op]) {
- struct dentry *dentry = (struct dentry *)de;
- return smfs_kml_post[op](dir, dentry, data1, data2);
+ int rc = 0;
+
+ ENTRY;
+ CDEBUG(D_INODE,"KML: inode %lu, code: %u\n", inode->i_ino, code);
+ //KML don't handle failed ops
+ if (ret)
+ RETURN(0);
+
+ if (smfs_kml_post[code]) {
+ rc = smfs_kml_post[code](inode, msg);
}
+
+ RETURN(rc);
+}
+
+/* Helpers */
+static int smfs_exit_kml(struct super_block *sb, void * arg, struct kml_priv * priv)
+{
+ ENTRY;
+
+ smfs_deregister_plugin(sb, SMFS_PLG_KML);
+
+ EXIT;
return 0;
}
+
+static int smfs_trans_kml (struct super_block *sb, void *arg,
+ struct kml_priv * priv)
+{
+ int size;
+
+ ENTRY;
+
+ size = 20;//LDISKFS_INDEX_EXTRA_TRANS_BLOCKS+LDISKFS_DATA_TRANS_BLOCKS;
+
+ RETURN(size);
+}
+
+static int smfs_start_kml(struct super_block *sb, void *arg,
+ struct kml_priv * kml_p)
+{
+ int rc = 0;
+ struct smfs_super_info * smb = S2SMI(sb);
+ struct llog_ctxt **ctxt = &smb->smsi_kml_log;
+
+ ENTRY;
+ //is plugin already activated
+ if (SMFS_IS(smb->plg_flags, SMFS_PLG_KML))
+ RETURN(0);
+
+ //this will do OBD_ALLOC() for ctxt
+ rc = llog_catalog_setup(ctxt, KML_LOG_NAME, smb->smsi_exp,
+ smb->smsi_ctxt, smb->sm_fsfilt,
+ smb->smsi_logs_dir,
+ smb->smsi_objects_dir);
+
+ if (rc) {
+ CERROR("Failed to initialize kml log list catalog %d\n", rc);
+ RETURN(rc);
+ }
+
+ (*ctxt)->llog_proc_cb = smfs_llog_process_rec_cb;
+
+ SMFS_SET(smb->plg_flags, SMFS_PLG_KML);
+
+ RETURN(0);
+}
+
+int smfs_stop_kml(struct super_block *sb, void *arg,
+ struct kml_priv * kml_p)
+{
+ struct smfs_super_info * smb = S2SMI(sb);
+ struct llog_ctxt *ctxt = smb->smsi_kml_log;
+ ENTRY;
+
+ if (!SMFS_IS(smb->plg_flags, SMFS_PLG_KML))
+ RETURN(0);
+
+ SMFS_CLEAR(smb->plg_flags, SMFS_PLG_KML);
+
+ llog_catalog_cleanup(ctxt);
+ OBD_FREE(ctxt, sizeof(*ctxt));
+
+ RETURN(0);
+}
+
+typedef int (*kml_helper)(struct super_block * sb, void *msg, struct kml_priv *);
+static kml_helper smfs_kml_helpers[PLG_HELPER_MAX] = {
+ [PLG_EXIT] smfs_exit_kml,
+ [PLG_START] smfs_start_kml,
+ [PLG_STOP] smfs_stop_kml,
+ [PLG_TRANS_SIZE] smfs_trans_kml,
+ [PLG_TEST_INODE] NULL,
+ [PLG_SET_INODE] NULL,
+};
+
+static int smfs_kml_help_op(int code, struct super_block * sb,
+ void * arg, void * priv)
+{
+ int rc = 0;
+ ENTRY;
+ if (smfs_kml_helpers[code])
+ rc = smfs_kml_helpers[code](sb, arg, (struct kml_priv *) priv);
+ RETURN(rc);
+}
+
+int smfs_init_kml(struct super_block *sb)
+{
+ int rc = 0;
+ struct smfs_super_info *smb = S2SMI(sb);
+ struct smfs_plugin plg = {
+ .plg_type = SMFS_PLG_KML,
+ .plg_pre_op = NULL,
+ .plg_post_op = &smfs_kml_post_op,
+ .plg_helper = &smfs_kml_help_op,
+ .plg_private = NULL,
+ };
+
+ ENTRY;
+
+ rc = ost_rec_pack_init(smb);
+ if (rc)
+ return rc;
+
+ rc = mds_rec_pack_init(smb);
+ if (rc)
+ return rc;
+
+ rc = smfs_register_plugin(sb, &plg);
+
+ RETURN(rc);
+}
+
+
git://git.whamcloud.com / fs / lustre-release.git / blobdiff