Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Mike Marshall | 1551 | 78.49% | 5 | 14.29% |
Martin Brandenburg | 273 | 13.82% | 11 | 31.43% |
Yi Liu | 58 | 2.94% | 1 | 2.86% |
Al Viro | 33 | 1.67% | 5 | 14.29% |
Miklos Szeredi | 24 | 1.21% | 2 | 5.71% |
Christian Brauner | 21 | 1.06% | 6 | 17.14% |
Justin Stitt | 8 | 0.40% | 1 | 2.86% |
Jeff Layton | 3 | 0.15% | 1 | 2.86% |
Deepa Dinamani | 3 | 0.15% | 1 | 2.86% |
Artur Świgoń | 1 | 0.05% | 1 | 2.86% |
Greg Kroah-Hartman | 1 | 0.05% | 1 | 2.86% |
Total | 1976 | 35 |
// SPDX-License-Identifier: GPL-2.0 /* * (C) 2001 Clemson University and The University of Chicago * * See COPYING in top-level directory. */ /* * Linux VFS namei operations. */ #include "protocol.h" #include "orangefs-kernel.h" /* * Get a newly allocated inode to go with a negative dentry. */ static int orangefs_create(struct mnt_idmap *idmap, struct inode *dir, struct dentry *dentry, umode_t mode, bool exclusive) { struct orangefs_inode_s *parent = ORANGEFS_I(dir); struct orangefs_kernel_op_s *new_op; struct orangefs_object_kref ref; struct inode *inode; struct iattr iattr; int ret; gossip_debug(GOSSIP_NAME_DEBUG, "%s: %pd\n", __func__, dentry); new_op = op_alloc(ORANGEFS_VFS_OP_CREATE); if (!new_op) return -ENOMEM; new_op->upcall.req.create.parent_refn = parent->refn; fill_default_sys_attrs(new_op->upcall.req.create.attributes, ORANGEFS_TYPE_METAFILE, mode); strscpy(new_op->upcall.req.create.d_name, dentry->d_name.name); ret = service_operation(new_op, __func__, get_interruptible_flag(dir)); gossip_debug(GOSSIP_NAME_DEBUG, "%s: %pd: handle:%pU: fsid:%d: new_op:%p: ret:%d:\n", __func__, dentry, &new_op->downcall.resp.create.refn.khandle, new_op->downcall.resp.create.refn.fs_id, new_op, ret); if (ret < 0) goto out; ref = new_op->downcall.resp.create.refn; inode = orangefs_new_inode(dir->i_sb, dir, S_IFREG | mode, 0, &ref); if (IS_ERR(inode)) { gossip_err("%s: Failed to allocate inode for file :%pd:\n", __func__, dentry); ret = PTR_ERR(inode); goto out; } gossip_debug(GOSSIP_NAME_DEBUG, "%s: Assigned inode :%pU: for file :%pd:\n", __func__, get_khandle_from_ino(inode), dentry); d_instantiate_new(dentry, inode); orangefs_set_timeout(dentry); gossip_debug(GOSSIP_NAME_DEBUG, "%s: dentry instantiated for %pd\n", __func__, dentry); memset(&iattr, 0, sizeof iattr); iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME; iattr.ia_mtime = iattr.ia_ctime = current_time(dir); __orangefs_setattr(dir, &iattr); ret = 0; out: op_release(new_op); gossip_debug(GOSSIP_NAME_DEBUG, "%s: %pd: returning %d\n", __func__, dentry, ret); return ret; } /* * Attempt to resolve an object name (dentry->d_name), parent handle, and * fsid into a handle for the object. */ static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags) { struct orangefs_inode_s *parent = ORANGEFS_I(dir); struct orangefs_kernel_op_s *new_op; struct inode *inode; int ret = -EINVAL; /* * in theory we could skip a lookup here (if the intent is to * create) in order to avoid a potentially failed lookup, but * leaving it in can skip a valid lookup and try to create a file * that already exists (e.g. the vfs already handles checking for * -EEXIST on O_EXCL opens, which is broken if we skip this lookup * in the create path) */ gossip_debug(GOSSIP_NAME_DEBUG, "%s called on %pd\n", __func__, dentry); if (dentry->d_name.len > (ORANGEFS_NAME_MAX - 1)) return ERR_PTR(-ENAMETOOLONG); new_op = op_alloc(ORANGEFS_VFS_OP_LOOKUP); if (!new_op) return ERR_PTR(-ENOMEM); new_op->upcall.req.lookup.sym_follow = ORANGEFS_LOOKUP_LINK_NO_FOLLOW; gossip_debug(GOSSIP_NAME_DEBUG, "%s:%s:%d using parent %pU\n", __FILE__, __func__, __LINE__, &parent->refn.khandle); new_op->upcall.req.lookup.parent_refn = parent->refn; strscpy(new_op->upcall.req.lookup.d_name, dentry->d_name.name); gossip_debug(GOSSIP_NAME_DEBUG, "%s: doing lookup on %s under %pU,%d\n", __func__, new_op->upcall.req.lookup.d_name, &new_op->upcall.req.lookup.parent_refn.khandle, new_op->upcall.req.lookup.parent_refn.fs_id); ret = service_operation(new_op, __func__, get_interruptible_flag(dir)); gossip_debug(GOSSIP_NAME_DEBUG, "Lookup Got %pU, fsid %d (ret=%d)\n", &new_op->downcall.resp.lookup.refn.khandle, new_op->downcall.resp.lookup.refn.fs_id, ret); if (ret == 0) { orangefs_set_timeout(dentry); inode = orangefs_iget(dir->i_sb, &new_op->downcall.resp.lookup.refn); } else if (ret == -ENOENT) { inode = NULL; } else { /* must be a non-recoverable error */ inode = ERR_PTR(ret); } op_release(new_op); return d_splice_alias(inode, dentry); } /* return 0 on success; non-zero otherwise */ static int orangefs_unlink(struct inode *dir, struct dentry *dentry) { struct inode *inode = dentry->d_inode; struct orangefs_inode_s *parent = ORANGEFS_I(dir); struct orangefs_kernel_op_s *new_op; struct iattr iattr; int ret; gossip_debug(GOSSIP_NAME_DEBUG, "%s: called on %pd\n" " (inode %pU): Parent is %pU | fs_id %d\n", __func__, dentry, get_khandle_from_ino(inode), &parent->refn.khandle, parent->refn.fs_id); new_op = op_alloc(ORANGEFS_VFS_OP_REMOVE); if (!new_op) return -ENOMEM; new_op->upcall.req.remove.parent_refn = parent->refn; strscpy(new_op->upcall.req.remove.d_name, dentry->d_name.name); ret = service_operation(new_op, "orangefs_unlink", get_interruptible_flag(inode)); gossip_debug(GOSSIP_NAME_DEBUG, "%s: service_operation returned:%d:\n", __func__, ret); op_release(new_op); if (!ret) { drop_nlink(inode); memset(&iattr, 0, sizeof iattr); iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME; iattr.ia_mtime = iattr.ia_ctime = current_time(dir); __orangefs_setattr(dir, &iattr); } return ret; } static int orangefs_symlink(struct mnt_idmap *idmap, struct inode *dir, struct dentry *dentry, const char *symname) { struct orangefs_inode_s *parent = ORANGEFS_I(dir); struct orangefs_kernel_op_s *new_op; struct orangefs_object_kref ref; struct inode *inode; struct iattr iattr; int mode = 0755; int ret; gossip_debug(GOSSIP_NAME_DEBUG, "%s: called\n", __func__); if (!symname) return -EINVAL; if (strlen(symname)+1 > ORANGEFS_NAME_MAX) return -ENAMETOOLONG; new_op = op_alloc(ORANGEFS_VFS_OP_SYMLINK); if (!new_op) return -ENOMEM; new_op->upcall.req.sym.parent_refn = parent->refn; fill_default_sys_attrs(new_op->upcall.req.sym.attributes, ORANGEFS_TYPE_SYMLINK, mode); strscpy(new_op->upcall.req.sym.entry_name, dentry->d_name.name); strscpy(new_op->upcall.req.sym.target, symname); ret = service_operation(new_op, __func__, get_interruptible_flag(dir)); gossip_debug(GOSSIP_NAME_DEBUG, "Symlink Got ORANGEFS handle %pU on fsid %d (ret=%d)\n", &new_op->downcall.resp.sym.refn.khandle, new_op->downcall.resp.sym.refn.fs_id, ret); if (ret < 0) { gossip_debug(GOSSIP_NAME_DEBUG, "%s: failed with error code %d\n", __func__, ret); goto out; } ref = new_op->downcall.resp.sym.refn; inode = orangefs_new_inode(dir->i_sb, dir, S_IFLNK | mode, 0, &ref); if (IS_ERR(inode)) { gossip_err ("*** Failed to allocate orangefs symlink inode\n"); ret = PTR_ERR(inode); goto out; } /* * This is necessary because orangefs_inode_getattr will not * re-read symlink size as it is impossible for it to change. * Invalidating the cache does not help. orangefs_new_inode * does not set the correct size (it does not know symname). */ inode->i_size = strlen(symname); gossip_debug(GOSSIP_NAME_DEBUG, "Assigned symlink inode new number of %pU\n", get_khandle_from_ino(inode)); d_instantiate_new(dentry, inode); orangefs_set_timeout(dentry); gossip_debug(GOSSIP_NAME_DEBUG, "Inode (Symlink) %pU -> %pd\n", get_khandle_from_ino(inode), dentry); memset(&iattr, 0, sizeof iattr); iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME; iattr.ia_mtime = iattr.ia_ctime = current_time(dir); __orangefs_setattr(dir, &iattr); ret = 0; out: op_release(new_op); return ret; } static int orangefs_mkdir(struct mnt_idmap *idmap, struct inode *dir, struct dentry *dentry, umode_t mode) { struct orangefs_inode_s *parent = ORANGEFS_I(dir); struct orangefs_kernel_op_s *new_op; struct orangefs_object_kref ref; struct inode *inode; struct iattr iattr; int ret; new_op = op_alloc(ORANGEFS_VFS_OP_MKDIR); if (!new_op) return -ENOMEM; new_op->upcall.req.mkdir.parent_refn = parent->refn; fill_default_sys_attrs(new_op->upcall.req.mkdir.attributes, ORANGEFS_TYPE_DIRECTORY, mode); strscpy(new_op->upcall.req.mkdir.d_name, dentry->d_name.name); ret = service_operation(new_op, __func__, get_interruptible_flag(dir)); gossip_debug(GOSSIP_NAME_DEBUG, "Mkdir Got ORANGEFS handle %pU on fsid %d\n", &new_op->downcall.resp.mkdir.refn.khandle, new_op->downcall.resp.mkdir.refn.fs_id); if (ret < 0) { gossip_debug(GOSSIP_NAME_DEBUG, "%s: failed with error code %d\n", __func__, ret); goto out; } ref = new_op->downcall.resp.mkdir.refn; inode = orangefs_new_inode(dir->i_sb, dir, S_IFDIR | mode, 0, &ref); if (IS_ERR(inode)) { gossip_err("*** Failed to allocate orangefs dir inode\n"); ret = PTR_ERR(inode); goto out; } gossip_debug(GOSSIP_NAME_DEBUG, "Assigned dir inode new number of %pU\n", get_khandle_from_ino(inode)); d_instantiate_new(dentry, inode); orangefs_set_timeout(dentry); gossip_debug(GOSSIP_NAME_DEBUG, "Inode (Directory) %pU -> %pd\n", get_khandle_from_ino(inode), dentry); /* * NOTE: we have no good way to keep nlink consistent for directories * across clients; keep constant at 1. */ memset(&iattr, 0, sizeof iattr); iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME; iattr.ia_mtime = iattr.ia_ctime = current_time(dir); __orangefs_setattr(dir, &iattr); out: op_release(new_op); return ret; } static int orangefs_rename(struct mnt_idmap *idmap, struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry, unsigned int flags) { struct orangefs_kernel_op_s *new_op; struct iattr iattr; int ret; if (flags) return -EINVAL; gossip_debug(GOSSIP_NAME_DEBUG, "orangefs_rename: called (%pd2 => %pd2) ct=%d\n", old_dentry, new_dentry, d_count(new_dentry)); memset(&iattr, 0, sizeof iattr); iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME; iattr.ia_mtime = iattr.ia_ctime = current_time(new_dir); __orangefs_setattr(new_dir, &iattr); new_op = op_alloc(ORANGEFS_VFS_OP_RENAME); if (!new_op) return -EINVAL; new_op->upcall.req.rename.old_parent_refn = ORANGEFS_I(old_dir)->refn; new_op->upcall.req.rename.new_parent_refn = ORANGEFS_I(new_dir)->refn; strscpy(new_op->upcall.req.rename.d_old_name, old_dentry->d_name.name); strscpy(new_op->upcall.req.rename.d_new_name, new_dentry->d_name.name); ret = service_operation(new_op, "orangefs_rename", get_interruptible_flag(old_dentry->d_inode)); gossip_debug(GOSSIP_NAME_DEBUG, "orangefs_rename: got downcall status %d\n", ret); if (new_dentry->d_inode) inode_set_ctime_current(d_inode(new_dentry)); op_release(new_op); return ret; } /* ORANGEFS implementation of VFS inode operations for directories */ const struct inode_operations orangefs_dir_inode_operations = { .lookup = orangefs_lookup, .get_inode_acl = orangefs_get_acl, .set_acl = orangefs_set_acl, .create = orangefs_create, .unlink = orangefs_unlink, .symlink = orangefs_symlink, .mkdir = orangefs_mkdir, .rmdir = orangefs_unlink, .rename = orangefs_rename, .setattr = orangefs_setattr, .getattr = orangefs_getattr, .listxattr = orangefs_listxattr, .permission = orangefs_permission, .update_time = orangefs_update_time, };
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