// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) International Business Machines Corp., 2000-2004 */ #include <linux/fs.h> #include <linux/quotaops.h> #include "jfs_incore.h" #include "jfs_inode.h" #include "jfs_filsys.h" #include "jfs_imap.h" #include "jfs_dinode.h" #include "jfs_debug.h" void jfs_set_inode_flags(struct inode *inode) { unsigned int flags = JFS_IP(inode)->mode2; unsigned int new_fl = 0; if (flags & JFS_IMMUTABLE_FL) new_fl |= S_IMMUTABLE; if (flags & JFS_APPEND_FL) new_fl |= S_APPEND; if (flags & JFS_NOATIME_FL) new_fl |= S_NOATIME; if (flags & JFS_DIRSYNC_FL) new_fl |= S_DIRSYNC; if (flags & JFS_SYNC_FL) new_fl |= S_SYNC; inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND | S_NOATIME | S_DIRSYNC | S_SYNC); } /* * NAME: ialloc() * * FUNCTION: Allocate a new inode * */ struct inode *ialloc(struct inode *parent, umode_t mode) { struct super_block *sb = parent->i_sb; struct inode *inode; struct jfs_inode_info *jfs_inode; int rc; inode = new_inode(sb); if (!inode) { jfs_warn("ialloc: new_inode returned NULL!"); return ERR_PTR(-ENOMEM); } jfs_inode = JFS_IP(inode); rc = diAlloc(parent, S_ISDIR(mode), inode); if (rc) { jfs_warn("ialloc: diAlloc returned %d!", rc); goto fail_put; } if (insert_inode_locked(inode) < 0) { rc = -EINVAL; goto fail_put; } inode_init_owner(&init_user_ns, inode, parent, mode); /* * New inodes need to save sane values on disk when * uid & gid mount options are used */ jfs_inode->saved_uid = inode->i_uid; jfs_inode->saved_gid = inode->i_gid; /* * Allocate inode to quota. */ rc = dquot_initialize(inode); if (rc) goto fail_drop; rc = dquot_alloc_inode(inode); if (rc) goto fail_drop; /* inherit flags from parent */ jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT; if (S_ISDIR(mode)) { jfs_inode->mode2 |= IDIRECTORY; jfs_inode->mode2 &= ~JFS_DIRSYNC_FL; } else { jfs_inode->mode2 |= INLINEEA | ISPARSE; if (S_ISLNK(mode)) jfs_inode->mode2 &= ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL); } jfs_inode->mode2 |= inode->i_mode; inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); jfs_inode->otime = inode->i_ctime.tv_sec; inode->i_generation = JFS_SBI(sb)->gengen++; jfs_inode->cflag = 0; /* Zero remaining fields */ memset(&jfs_inode->acl, 0, sizeof(dxd_t)); memset(&jfs_inode->ea, 0, sizeof(dxd_t)); jfs_inode->next_index = 0; jfs_inode->acltype = 0; jfs_inode->btorder = 0; jfs_inode->btindex = 0; jfs_inode->bxflag = 0; jfs_inode->blid = 0; jfs_inode->atlhead = 0; jfs_inode->atltail = 0; jfs_inode->xtlid = 0; jfs_set_inode_flags(inode); jfs_info("ialloc returns inode = 0x%p", inode); return inode; fail_drop: dquot_drop(inode); inode->i_flags |= S_NOQUOTA; clear_nlink(inode); discard_new_inode(inode); return ERR_PTR(rc); fail_put: iput(inode); return ERR_PTR(rc); }