-/*
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
* linux/mds/mds_reint.c
- *
+ *
* Lustre Metadata Server (mds) reintegration routines
- *
+ *
* Copyright (C) 2002 Cluster File Systems, Inc.
* author: Peter Braam <braam@clusterfs.com>
*
#include <linux/fs.h>
#include <linux/stat.h>
#include <linux/locks.h>
-#include <linux/ext2_fs.h>
#include <linux/quotaops.h>
#include <asm/unistd.h>
#include <asm/uaccess.h>
#define DEBUG_SUBSYSTEM S_MDS
#include <linux/obd_support.h>
+#include <linux/obd_class.h>
#include <linux/obd.h>
#include <linux/lustre_lib.h>
#include <linux/lustre_idl.h>
#include <linux/lustre_mds.h>
#include <linux/obd_class.h>
-extern struct ptlrpc_request *mds_prep_req(int size, int opcode, int namelen, char *name, int tgtlen, char *tgt);
+int mds_update_last_rcvd(struct mds_obd *mds, struct ptlrpc_request *req)
+{
+ return 0;
+}
-static int mds_reint_setattr(struct mds_update_record *rec, struct ptlrpc_request *req)
+static int mds_reint_setattr(struct mds_update_record *rec,
+ struct ptlrpc_request *req)
{
- struct dentry *de;
+ struct mds_obd *mds = &req->rq_obd->u.mds;
+ struct dentry *de;
+ void *handle;
+ int rc = 0;
- de = mds_fid2dentry(req->rq_obd, rec->ur_fid1, NULL);
- if (IS_ERR(de)) {
- req->rq_rephdr->status = -ESTALE;
- return 0;
- }
+ de = mds_fid2dentry(mds, rec->ur_fid1, NULL);
+ if (IS_ERR(de) || OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_SETATTR)) {
+ GOTO(out_setattr, rc = -ESTALE);
+ }
CDEBUG(D_INODE, "ino %ld\n", de->d_inode->i_ino);
- /* a _really_ horrible hack to avoid removing the data stored
- in the block pointers; this data is the object id
- this will go into an extended attribute at some point.
- */
- if ( rec->ur_iattr.ia_valid & ATTR_SIZE ) {
- /* ATTR_SIZE would invoke truncate: clear it */
- rec->ur_iattr.ia_valid &= ~ATTR_SIZE;
- de->d_inode->i_size = rec->ur_iattr.ia_size;
- /* make sure _something_ gets set - so new inode
- goes to disk (probably won't work over XFS */
- if (!rec->ur_iattr.ia_valid & ATTR_MODE) {
- rec->ur_iattr.ia_valid |= ATTR_MODE;
- rec->ur_iattr.ia_mode = de->d_inode->i_mode;
- }
- }
- if ( de->d_inode->i_op->setattr ) {
- req->rq_rephdr->status =
- de->d_inode->i_op->setattr(de, &rec->ur_iattr);
- } else {
- req->rq_rephdr->status =
- inode_setattr(de->d_inode, &rec->ur_iattr);
- }
-
- l_dput(de);
- EXIT;
- return 0;
-}
+ OBD_FAIL_WRITE(OBD_FAIL_MDS_REINT_SETATTR_WRITE,
+ de->d_inode->i_sb->s_dev);
-/*
- XXX nasty hack: store the object id in the first two
- direct block spots
-*/
-static inline void mds_store_objid(struct inode *inode, __u64 *id)
-{
- memcpy(&inode->u.ext2_i.i_data, id, sizeof(*id));
-}
+ handle = mds_fs_start(mds, de->d_inode, MDS_FSOP_SETATTR);
+ if (!handle)
+ GOTO(out_setattr_de, rc = PTR_ERR(handle));
+ rc = mds_fs_setattr(mds, de, handle, &rec->ur_iattr);
+ if (!rc)
+ rc = mds_update_last_rcvd(mds, req);
-static int mds_reint_create(struct mds_update_record *rec,
- struct ptlrpc_request *req)
-{
- int type = rec->ur_mode & S_IFMT;
- struct dentry *de;
- struct mds_rep *rep = req->rq_rep.mds;
- struct dentry *dchild;
- int rc;
- ENTRY;
-
- de = mds_fid2dentry(req->rq_obd, rec->ur_fid1, NULL);
- if (IS_ERR(de)) {
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
- CDEBUG(D_INODE, "ino %ld\n", de->d_inode->i_ino);
+ EXIT;
- dchild = lookup_one_len(rec->ur_name, de, rec->ur_namelen - 1);
- rc = PTR_ERR(dchild);
- if (IS_ERR(dchild)) {
- printk(__FUNCTION__ "child lookup error %d\n", rc);
- dput(de);
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
-
- if (dchild->d_inode) {
- printk(__FUNCTION__ "child exists (dir %ld, name %s\n",
- de->d_inode->i_ino, rec->ur_name);
- dput(de);
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
-
- switch (type) {
- case S_IFREG: {
- rc = vfs_create(de->d_inode, dchild, rec->ur_mode);
-
- EXIT;
- break;
- }
- case S_IFDIR: {
- rc = vfs_mkdir(de->d_inode, dchild, rec->ur_mode);
- EXIT;
- break;
- }
- case S_IFLNK: {
- rc = vfs_symlink(de->d_inode, dchild, rec->ur_tgt);
- EXIT;
- break;
- }
- case S_IFCHR:
- case S_IFBLK:
- case S_IFIFO:
- case S_IFSOCK: {
- int rdev = rec->ur_id;
- rc = vfs_mknod(de->d_inode, dchild, rec->ur_mode, rdev);
- EXIT;
- break;
- }
- }
-
- req->rq_rephdr->status = rc;
- if (!rc) {
- if (type == S_IFREG)
- mds_store_objid(dchild->d_inode, &rec->ur_id);
- dchild->d_inode->i_atime = rec->ur_time;
- dchild->d_inode->i_ctime = rec->ur_time;
- dchild->d_inode->i_mtime = rec->ur_time;
- dchild->d_inode->i_uid = rec->ur_uid;
- dchild->d_inode->i_gid = rec->ur_gid;
- rep->ino = dchild->d_inode->i_ino;
- }
-
- dput(de);
- dput(dchild);
- EXIT;
- return 0;
+ /* FIXME: keep rc intact */
+ rc = mds_fs_commit(mds, de->d_inode, handle);
+out_setattr_de:
+ l_dput(de);
+out_setattr:
+ req->rq_status = rc;
+ return(0);
}
-static int mds_reint_unlink(struct mds_update_record *rec,
- struct ptlrpc_request *req)
+static int mds_reint_create(struct mds_update_record *rec,
+ struct ptlrpc_request *req)
{
- struct dentry *de;
- struct dentry *dchild;
- int rc;
- ENTRY;
-
- de = mds_fid2dentry(req->rq_obd, rec->ur_fid1, NULL);
- if (IS_ERR(de)) {
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
- CDEBUG(D_INODE, "ino %ld\n", de->d_inode->i_ino);
-
- dchild = lookup_one_len(rec->ur_name, de, rec->ur_namelen - 1);
- rc = PTR_ERR(dchild);
- if (IS_ERR(dchild)) {
- printk(__FUNCTION__ ": child lookup error %d\n", rc);
- dput(de);
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
-
- if (!dchild->d_inode) {
- printk(__FUNCTION__ ": child doesn't exist (dir %ld, name %s\n",
- de->d_inode->i_ino, rec->ur_name);
- dput(de);
- req->rq_rephdr->status = -ESTALE;
- EXIT;
- return 0;
- }
-
- switch (dchild->d_inode->i_mode & S_IFMT) {
- case S_IFDIR:
- rc = vfs_rmdir(de->d_inode, dchild);
- EXIT;
- break;
- default:
- rc = vfs_unlink(de->d_inode, dchild);
-
- EXIT;
- break;
- }
-
- req->rq_rephdr->status = rc;
- dput(de);
- dput(dchild);
- EXIT;
- return 0;
+ struct dentry *de = NULL;
+ struct mds_obd *mds = &req->rq_obd->u.mds;
+ struct dentry *dchild = NULL;
+ struct inode *dir;
+ void *handle;
+ int rc = 0, type = rec->ur_mode & S_IFMT;
+ ENTRY;
+
+ de = mds_fid2dentry(mds, rec->ur_fid1, NULL);
+ if (IS_ERR(de) || OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_CREATE)) {
+ LBUG();
+ GOTO(out_create_de, rc = -ESTALE);
+ }
+ dir = de->d_inode;
+ CDEBUG(D_INODE, "ino %ld\n", dir->i_ino);
+
+ down(&dir->i_sem);
+ dchild = lookup_one_len(rec->ur_name, de, rec->ur_namelen - 1);
+ if (IS_ERR(dchild)) {
+ CERROR("child lookup error %ld\n", PTR_ERR(dchild));
+ up(&dir->i_sem);
+ LBUG();
+ GOTO(out_create_dchild, rc = -ESTALE);
+ }
+
+ if (dchild->d_inode) {
+ CERROR("child exists (dir %ld, name %s)\n",
+ dir->i_ino, rec->ur_name);
+ LBUG();
+ GOTO(out_create_dchild, rc = -EEXIST);
+ }
+
+ OBD_FAIL_WRITE(OBD_FAIL_MDS_REINT_CREATE_WRITE, dir->i_sb->s_dev);
+
+ switch (type) {
+ case S_IFREG: {
+ handle = mds_fs_start(mds, dir, MDS_FSOP_CREATE);
+ if (!handle)
+ GOTO(out_create_dchild, PTR_ERR(handle));
+ rc = vfs_create(dir, dchild, rec->ur_mode);
+ EXIT;
+ break;
+ }
+ case S_IFDIR: {
+ handle = mds_fs_start(mds, dir, MDS_FSOP_MKDIR);
+ if (!handle)
+ GOTO(out_create_dchild, PTR_ERR(handle));
+ rc = vfs_mkdir(dir, dchild, rec->ur_mode);
+ EXIT;
+ break;
+ }
+ case S_IFLNK: {
+ handle = mds_fs_start(mds, dir, MDS_FSOP_SYMLINK);
+ if (!handle)
+ GOTO(out_create_dchild, PTR_ERR(handle));
+ rc = vfs_symlink(dir, dchild, rec->ur_tgt);
+ EXIT;
+ break;
+ }
+ case S_IFCHR:
+ case S_IFBLK:
+ case S_IFIFO:
+ case S_IFSOCK: {
+ int rdev = rec->ur_id;
+ handle = mds_fs_start(mds, dir, MDS_FSOP_MKNOD);
+ if (!handle)
+ GOTO(out_create_dchild, PTR_ERR(handle));
+ rc = vfs_mknod(dir, dchild, rec->ur_mode, rdev);
+ EXIT;
+ break;
+ }
+ default:
+ CERROR("bad file type %d for create of %s\n",type,rec->ur_name);
+ GOTO(out_create_dchild, rc = -EINVAL);
+ }
+
+ if (rc) {
+ CERROR("error during create: %d\n", rc);
+ LBUG();
+ GOTO(out_create_commit, rc);
+ } else {
+ struct iattr iattr;
+ struct inode *inode = dchild->d_inode;
+ struct mds_body *body;
+
+ if (type == S_IFREG) {
+ rc = mds_fs_set_objid(mds, inode, handle, rec->ur_id);
+ if (rc)
+ CERROR("error %d setting objid for %ld\n",
+ rc, inode->i_ino);
+ }
+
+ iattr.ia_atime = rec->ur_time;
+ iattr.ia_ctime = rec->ur_time;
+ iattr.ia_mtime = rec->ur_time;
+ iattr.ia_uid = rec->ur_uid;
+ iattr.ia_gid = rec->ur_gid;
+ iattr.ia_valid = ATTR_UID | ATTR_GID | ATTR_ATIME |
+ ATTR_MTIME | ATTR_CTIME;
+
+ rc = mds_fs_setattr(mds, dchild, handle, &iattr);
+ /* XXX should we abort here in case of error? */
+
+ body = lustre_msg_buf(req->rq_repmsg, 0);
+ body->ino = inode->i_ino;
+ body->generation = inode->i_generation;
+ }
+
+ if (!rc)
+ rc = mds_update_last_rcvd(mds, req);
+
+out_create_commit:
+ /* FIXME: keep rc intact */
+ rc = mds_fs_commit(mds, dir, handle);
+out_create_dchild:
+ l_dput(dchild);
+ up(&dir->i_sem);
+out_create_de:
+ l_dput(de);
+ req->rq_status = rc;
+ return 0;
}
-static int mds_reint_link(struct mds_update_record *rec,
- struct ptlrpc_request *req)
+static int mds_reint_unlink(struct mds_update_record *rec,
+ struct ptlrpc_request *req)
{
- struct dentry *de_src = NULL;
- struct dentry *de_tgt_dir = NULL;
- struct dentry *dchild = NULL;
- int rc;
- ENTRY;
-
- rc = -ESTALE;
- de_src = mds_fid2dentry(req->rq_obd, rec->ur_fid1, NULL);
- if (IS_ERR(de_src)) {
- EXIT;
- goto out_link;
- }
-
- de_tgt_dir = mds_fid2dentry(req->rq_obd, rec->ur_fid2, NULL);
- if (IS_ERR(de_tgt_dir)) {
- rc = -ESTALE;
- EXIT;
- goto out_link;
- }
-
- dchild = lookup_one_len(rec->ur_name, de_tgt_dir, rec->ur_namelen - 1);
- if (IS_ERR(dchild)) {
- printk(__FUNCTION__ ": child lookup error %d\n", rc);
- req->rq_rephdr->status = -ESTALE;
- goto out_link;
- }
-
- if (dchild->d_inode) {
- printk(__FUNCTION__ ": child exists (dir %ld, name %s\n",
- de_tgt_dir->d_inode->i_ino, rec->ur_name);
- EXIT;
- goto out_link;
- }
-
- rc = vfs_link(de_src, de_tgt_dir->d_inode, dchild);
-
- out_link:
- req->rq_rephdr->status = rc;
- l_dput(de_src);
- l_dput(de_tgt_dir);
- l_dput(dchild);
- EXIT;
- return 0;
+ struct dentry *de = NULL;
+ struct dentry *dchild = NULL;
+ struct mds_obd *mds = &req->rq_obd->u.mds;
+ struct inode *dir, *inode;
+ void *handle;
+ int rc = 0;
+ ENTRY;
+
+ de = mds_fid2dentry(mds, rec->ur_fid1, NULL);
+ if (IS_ERR(de) || OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_UNLINK)) {
+ LBUG();
+ GOTO(out_unlink, rc = -ESTALE);
+ }
+ dir = de->d_inode;
+ CDEBUG(D_INODE, "ino %ld\n", dir->i_ino);
+
+ down(&dir->i_sem);
+ dchild = lookup_one_len(rec->ur_name, de, rec->ur_namelen - 1);
+ if (IS_ERR(dchild)) {
+ CERROR("child lookup error %ld\n", PTR_ERR(dchild));
+ LBUG();
+ GOTO(out_unlink_de, rc = -ESTALE);
+ }
+
+ inode = dchild->d_inode;
+ if (!inode) {
+ CERROR("child doesn't exist (dir %ld, name %s\n",
+ dir->i_ino, rec->ur_name);
+ LBUG();
+ GOTO(out_unlink_dchild, rc = -ESTALE);
+ }
+
+ if (inode->i_ino != rec->ur_fid2->id) {
+ CERROR("inode and FID ID do not match (%ld != %Ld)\n",
+ inode->i_ino, rec->ur_fid2->id);
+ LBUG();
+ GOTO(out_unlink_dchild, rc = -ESTALE);
+ }
+ if (inode->i_generation != rec->ur_fid2->generation) {
+ CERROR("inode and FID GENERATION do not match (%d != %d)\n",
+ inode->i_generation, rec->ur_fid2->generation);
+ LBUG();
+ GOTO(out_unlink_dchild, rc = -ESTALE);
+ }
+
+ OBD_FAIL_WRITE(OBD_FAIL_MDS_REINT_UNLINK_WRITE, dir->i_sb->s_dev);
+
+ switch (dchild->d_inode->i_mode & S_IFMT) {
+ case S_IFDIR:
+ handle = mds_fs_start(mds, dir, MDS_FSOP_RMDIR);
+ if (!handle)
+ GOTO(out_unlink_dchild, rc = PTR_ERR(handle));
+ rc = vfs_rmdir(dir, dchild);
+ break;
+ default:
+ handle = mds_fs_start(mds, dir, MDS_FSOP_UNLINK);
+ if (!handle)
+ GOTO(out_unlink_dchild, rc = PTR_ERR(handle));
+ rc = vfs_unlink(dir, dchild);
+ break;
+ }
+
+ if (!rc)
+ rc = mds_update_last_rcvd(mds, req);
+ /* FIXME: keep rc intact */
+ rc = mds_fs_commit(mds, dir, handle);
+
+ EXIT;
+out_unlink_dchild:
+ l_dput(dchild);
+out_unlink_de:
+ up(&dir->i_sem);
+ l_dput(de);
+out_unlink:
+ req->rq_status = rc;
+ return 0;
}
+static int mds_reint_link(struct mds_update_record *rec,
+ struct ptlrpc_request *req)
+{
+ struct dentry *de_src = NULL;
+ struct dentry *de_tgt_dir = NULL;
+ struct dentry *dchild = NULL;
+ struct mds_obd *mds = &req->rq_obd->u.mds;
+ void *handle;
+ int rc = 0;
+
+ ENTRY;
+ de_src = mds_fid2dentry(mds, rec->ur_fid1, NULL);
+ if (IS_ERR(de_src) || OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_LINK)) {
+ GOTO(out_link, rc = -ESTALE);
+ }
+
+ de_tgt_dir = mds_fid2dentry(mds, rec->ur_fid2, NULL);
+ if (IS_ERR(de_tgt_dir)) {
+ GOTO(out_link_de_src, rc = -ESTALE);
+ }
+
+ down(&de_tgt_dir->d_inode->i_sem);
+ dchild = lookup_one_len(rec->ur_name, de_tgt_dir, rec->ur_namelen - 1);
+ if (IS_ERR(dchild)) {
+ CERROR("child lookup error %ld\n", PTR_ERR(dchild));
+ GOTO(out_link_de_tgt_dir, rc = -ESTALE);
+ }
+
+ if (dchild->d_inode) {
+ CERROR("child exists (dir %ld, name %s\n",
+ de_tgt_dir->d_inode->i_ino, rec->ur_name);
+ GOTO(out_link_dchild, rc = -EEXIST);
+ }
+
+ OBD_FAIL_WRITE(OBD_FAIL_MDS_REINT_LINK_WRITE,
+ dchild->d_inode->i_sb->s_dev);
+
+ handle = mds_fs_start(mds, de_tgt_dir->d_inode, MDS_FSOP_LINK);
+ if (!handle)
+ GOTO(out_link_dchild, rc = PTR_ERR(handle));
+
+ rc = vfs_link(de_src, de_tgt_dir->d_inode, dchild);
+
+ if (!rc)
+ rc = mds_update_last_rcvd(mds, req);
+
+ /* FIXME: keep rc intact */
+ rc = mds_fs_commit(mds, de_tgt_dir->d_inode, handle);
+ EXIT;
+
+out_link_dchild:
+ l_dput(dchild);
+out_link_de_tgt_dir:
+ up(&de_tgt_dir->d_inode->i_sem);
+ l_dput(de_tgt_dir);
+out_link_de_src:
+ l_dput(de_src);
+out_link:
+ req->rq_status = rc;
+ return 0;
+}
-static int mds_reint_rename(struct mds_update_record *rec,
- struct ptlrpc_request *req)
+static int mds_reint_rename(struct mds_update_record *rec,
+ struct ptlrpc_request *req)
{
- struct dentry *de_srcdir = NULL;
- struct dentry *de_tgtdir = NULL;
- struct dentry *de_old = NULL;
- struct dentry *de_new = NULL;
- int rc;
- ENTRY;
-
- rc = -ESTALE;
- de_srcdir = mds_fid2dentry(req->rq_obd, rec->ur_fid1, NULL);
- if (IS_ERR(de_srcdir)) {
- EXIT;
- goto out_rename;
- }
-
- de_tgtdir = mds_fid2dentry(req->rq_obd, rec->ur_fid2, NULL);
- if (IS_ERR(de_tgtdir)) {
- rc = -ESTALE;
- EXIT;
- goto out_rename;
- }
-
- de_old = lookup_one_len(rec->ur_name, de_srcdir, rec->ur_namelen - 1);
- if (IS_ERR(de_old)) {
- printk(__FUNCTION__ "child lookup error %d\n", rc);
- goto out_rename;
- }
-
- de_new = lookup_one_len(rec->ur_tgt, de_tgtdir, rec->ur_tgtlen - 1);
- if (IS_ERR(de_new)) {
- printk(__FUNCTION__ "child lookup error %d\n", rc);
- goto out_rename;
- }
-
- rc = vfs_rename(de_srcdir->d_inode, de_old, de_tgtdir->d_inode, de_new);
-
- out_rename:
- req->rq_rephdr->status = rc;
- l_dput(de_new);
- l_dput(de_old);
- l_dput(de_tgtdir);
- l_dput(de_srcdir);
- EXIT;
- return 0;
+ struct dentry *de_srcdir = NULL;
+ struct dentry *de_tgtdir = NULL;
+ struct dentry *de_old = NULL;
+ struct dentry *de_new = NULL;
+ struct mds_obd *mds = &req->rq_obd->u.mds;
+ void *handle;
+ int rc = 0;
+ ENTRY;
+
+ de_srcdir = mds_fid2dentry(mds, rec->ur_fid1, NULL);
+ if (IS_ERR(de_srcdir)) {
+ GOTO(out_rename, rc = -ESTALE);
+ }
+
+ de_tgtdir = mds_fid2dentry(mds, rec->ur_fid2, NULL);
+ if (IS_ERR(de_tgtdir)) {
+ GOTO(out_rename_srcdir, rc = -ESTALE);
+ }
+
+ de_old = lookup_one_len(rec->ur_name, de_srcdir, rec->ur_namelen - 1);
+ if (IS_ERR(de_old)) {
+ CERROR("old child lookup error %ld\n", PTR_ERR(de_old));
+ GOTO(out_rename_tgtdir, rc = -ESTALE);
+ }
+
+ de_new = lookup_one_len(rec->ur_tgt, de_tgtdir, rec->ur_tgtlen - 1);
+ if (IS_ERR(de_new)) {
+ CERROR("new child lookup error %ld\n", PTR_ERR(de_new));
+ GOTO(out_rename_deold, rc = -ESTALE);
+ }
+
+ OBD_FAIL_WRITE(OBD_FAIL_MDS_REINT_RENAME_WRITE,
+ de_srcdir->d_inode->i_sb->s_dev);
+
+ handle = mds_fs_start(mds, de_tgtdir->d_inode, MDS_FSOP_RENAME);
+ if (!handle)
+ GOTO(out_rename_denew, rc = PTR_ERR(handle));
+ rc = vfs_rename(de_srcdir->d_inode, de_old, de_tgtdir->d_inode, de_new);
+
+ if (!rc)
+ rc = mds_update_last_rcvd(mds, req);
+
+ /* FIXME: keep rc intact */
+ rc = mds_fs_commit(mds, de_tgtdir->d_inode, handle);
+ EXIT;
+
+out_rename_denew:
+ l_dput(de_new);
+out_rename_deold:
+ l_dput(de_old);
+out_rename_tgtdir:
+ l_dput(de_tgtdir);
+out_rename_srcdir:
+ l_dput(de_srcdir);
+out_rename:
+ req->rq_status = rc;
+ return 0;
}
-typedef int (*mds_reinter)(struct mds_update_record *, struct ptlrpc_request*);
+typedef int (*mds_reinter)(struct mds_update_record *, struct ptlrpc_request*);
-static mds_reinter reinters[REINT_MAX+1] = {
- [REINT_SETATTR] mds_reint_setattr,
- [REINT_CREATE] mds_reint_create,
- [REINT_UNLINK] mds_reint_unlink,
- [REINT_LINK] mds_reint_link,
- [REINT_RENAME] mds_reint_rename
+static mds_reinter reinters[REINT_MAX+1] = {
+ [REINT_SETATTR] mds_reint_setattr,
+ [REINT_CREATE] mds_reint_create,
+ [REINT_UNLINK] mds_reint_unlink,
+ [REINT_LINK] mds_reint_link,
+ [REINT_RENAME] mds_reint_rename,
};
int mds_reint_rec(struct mds_update_record *rec, struct ptlrpc_request *req)
{
- int rc;
-
- if (rec->ur_opcode < 0 || rec->ur_opcode > REINT_MAX) {
- printk(__FUNCTION__ "opcode %d not valid\n",
- rec->ur_opcode);
- rc = req->rq_status = -EINVAL;
- return rc;
- }
-
- rc = mds_pack_rep(NULL, 0, NULL, 0, &req->rq_rephdr, &req->rq_rep.mds,
- &req->rq_replen, &req->rq_repbuf);
- if (rc) {
- EXIT;
- printk("mds: out of memory\n");
- rc = req->rq_status = -ENOMEM;
- return rc;
- }
- req->rq_rephdr->seqno = req->rq_reqhdr->seqno;
-
- rc = reinters[rec->ur_opcode](rec, req);
- req->rq_status = rc;
-
- return rc;
-}
-
+ int rc, size = sizeof(struct mds_body);
+
+ if (rec->ur_opcode < 1 || rec->ur_opcode > REINT_MAX) {
+ CERROR("opcode %d not valid\n", rec->ur_opcode);
+ rc = req->rq_status = -EINVAL;
+ RETURN(rc);
+ }
+
+ rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc) {
+ CERROR("mds: out of memory\n");
+ rc = req->rq_status = -ENOMEM;
+ RETURN(rc);
+ }
+
+ rc = reinters[rec->ur_opcode](rec, req);
+ return rc;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff