^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * linux/fs/hfs/inode.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) 1995-1997 Paul H. Hargrove
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * (C) 2003 Ardis Technologies <roman@ardistech.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * This file may be distributed under the terms of the GNU General Public License.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * This file contains inode-related functions which do not depend on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * which scheme is being used to represent forks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/pagemap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/mpage.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/cred.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/uio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/xattr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/blkdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "hfs_fs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include "btree.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static const struct file_operations hfs_file_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static const struct inode_operations hfs_file_inode_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /*================ Variable-like macros ================*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define HFS_VALID_MODE_BITS (S_IFREG | S_IFDIR | S_IRWXUGO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static int hfs_writepage(struct page *page, struct writeback_control *wbc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) return block_write_full_page(page, hfs_get_block, wbc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static int hfs_readpage(struct file *file, struct page *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) return block_read_full_page(page, hfs_get_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static void hfs_write_failed(struct address_space *mapping, loff_t to)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct inode *inode = mapping->host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) if (to > inode->i_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) truncate_pagecache(inode, inode->i_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) hfs_file_truncate(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static int hfs_write_begin(struct file *file, struct address_space *mapping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) loff_t pos, unsigned len, unsigned flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct page **pagep, void **fsdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) *pagep = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) hfs_get_block,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) &HFS_I(mapping->host)->phys_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) if (unlikely(ret))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) hfs_write_failed(mapping, pos + len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static sector_t hfs_bmap(struct address_space *mapping, sector_t block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return generic_block_bmap(mapping, block, hfs_get_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static int hfs_releasepage(struct page *page, gfp_t mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct inode *inode = page->mapping->host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct super_block *sb = inode->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct hfs_btree *tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct hfs_bnode *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) u32 nidx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int i, res = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) switch (inode->i_ino) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) case HFS_EXT_CNID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) tree = HFS_SB(sb)->ext_tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) case HFS_CAT_CNID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) tree = HFS_SB(sb)->cat_tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) if (!tree)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) if (tree->node_size >= PAGE_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) nidx = page->index >> (tree->node_size_shift - PAGE_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) spin_lock(&tree->hash_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) node = hfs_bnode_findhash(tree, nidx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (!node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) else if (atomic_read(&node->refcnt))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) res = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) if (res && node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) hfs_bnode_unhash(node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) hfs_bnode_free(node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) spin_unlock(&tree->hash_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) nidx = page->index << (PAGE_SHIFT - tree->node_size_shift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) i = 1 << (PAGE_SHIFT - tree->node_size_shift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) spin_lock(&tree->hash_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) node = hfs_bnode_findhash(tree, nidx++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) if (!node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (atomic_read(&node->refcnt)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) res = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) hfs_bnode_unhash(node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) hfs_bnode_free(node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) } while (--i && nidx < tree->node_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) spin_unlock(&tree->hash_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return res ? try_to_free_buffers(page) : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static ssize_t hfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct file *file = iocb->ki_filp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct address_space *mapping = file->f_mapping;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct inode *inode = mapping->host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) size_t count = iov_iter_count(iter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) ssize_t ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) ret = blockdev_direct_IO(iocb, inode, iter, hfs_get_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * In case of error extending write may have instantiated a few
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * blocks outside i_size. Trim these off again.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (unlikely(iov_iter_rw(iter) == WRITE && ret < 0)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) loff_t isize = i_size_read(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) loff_t end = iocb->ki_pos + count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (end > isize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) hfs_write_failed(mapping, end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) static int hfs_writepages(struct address_space *mapping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct writeback_control *wbc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) return mpage_writepages(mapping, wbc, hfs_get_block);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) const struct address_space_operations hfs_btree_aops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) .readpage = hfs_readpage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) .writepage = hfs_writepage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) .write_begin = hfs_write_begin,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) .write_end = generic_write_end,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) .bmap = hfs_bmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) .releasepage = hfs_releasepage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) const struct address_space_operations hfs_aops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) .readpage = hfs_readpage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) .writepage = hfs_writepage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) .write_begin = hfs_write_begin,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) .write_end = generic_write_end,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) .bmap = hfs_bmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) .direct_IO = hfs_direct_IO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) .writepages = hfs_writepages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * hfs_new_inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) struct inode *hfs_new_inode(struct inode *dir, const struct qstr *name, umode_t mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct super_block *sb = dir->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) struct inode *inode = new_inode(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) if (!inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) mutex_init(&HFS_I(inode)->extents_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) spin_lock_init(&HFS_I(inode)->open_dir_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) hfs_cat_build_key(sb, (btree_key *)&HFS_I(inode)->cat_key, dir->i_ino, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) inode->i_ino = HFS_SB(sb)->next_id++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) inode->i_mode = mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) inode->i_uid = current_fsuid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) inode->i_gid = current_fsgid();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) set_nlink(inode, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) HFS_I(inode)->flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) HFS_I(inode)->rsrc_inode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) HFS_I(inode)->fs_blocks = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) if (S_ISDIR(mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) inode->i_size = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) HFS_SB(sb)->folder_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) if (dir->i_ino == HFS_ROOT_CNID)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) HFS_SB(sb)->root_dirs++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) inode->i_op = &hfs_dir_inode_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) inode->i_fop = &hfs_dir_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) inode->i_mode |= S_IRWXUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) inode->i_mode &= ~HFS_SB(inode->i_sb)->s_dir_umask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) } else if (S_ISREG(mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) HFS_SB(sb)->file_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) if (dir->i_ino == HFS_ROOT_CNID)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) HFS_SB(sb)->root_files++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) inode->i_op = &hfs_file_inode_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) inode->i_fop = &hfs_file_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) inode->i_mapping->a_ops = &hfs_aops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) inode->i_mode |= S_IRUGO|S_IXUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) if (mode & S_IWUSR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) inode->i_mode |= S_IWUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) inode->i_mode &= ~HFS_SB(inode->i_sb)->s_file_umask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) HFS_I(inode)->phys_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) HFS_I(inode)->alloc_blocks = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) HFS_I(inode)->first_blocks = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) HFS_I(inode)->cached_start = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) HFS_I(inode)->cached_blocks = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) memset(HFS_I(inode)->first_extents, 0, sizeof(hfs_extent_rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) insert_inode_hash(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) mark_inode_dirty(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) hfs_mark_mdb_dirty(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) return inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) void hfs_delete_inode(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) struct super_block *sb = inode->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) hfs_dbg(INODE, "delete_inode: %lu\n", inode->i_ino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) if (S_ISDIR(inode->i_mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) HFS_SB(sb)->folder_count--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) HFS_SB(sb)->root_dirs--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) hfs_mark_mdb_dirty(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) HFS_SB(sb)->file_count--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) HFS_SB(sb)->root_files--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) if (S_ISREG(inode->i_mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) if (!inode->i_nlink) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) inode->i_size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) hfs_file_truncate(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) hfs_mark_mdb_dirty(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) void hfs_inode_read_fork(struct inode *inode, struct hfs_extent *ext,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) __be32 __log_size, __be32 phys_size, u32 clump_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) struct super_block *sb = inode->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) u32 log_size = be32_to_cpu(__log_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) u16 count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) memcpy(HFS_I(inode)->first_extents, ext, sizeof(hfs_extent_rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) for (count = 0, i = 0; i < 3; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) count += be16_to_cpu(ext[i].count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) HFS_I(inode)->first_blocks = count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) inode->i_size = HFS_I(inode)->phys_size = log_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) HFS_I(inode)->fs_blocks = (log_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) inode_set_bytes(inode, HFS_I(inode)->fs_blocks << sb->s_blocksize_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) HFS_I(inode)->alloc_blocks = be32_to_cpu(phys_size) /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) HFS_SB(sb)->alloc_blksz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) HFS_I(inode)->clump_blocks = clump_size / HFS_SB(sb)->alloc_blksz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) if (!HFS_I(inode)->clump_blocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) struct hfs_iget_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) struct hfs_cat_key *key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) hfs_cat_rec *rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) static int hfs_test_inode(struct inode *inode, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) struct hfs_iget_data *idata = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) hfs_cat_rec *rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) rec = idata->rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) switch (rec->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) case HFS_CDR_DIR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) return inode->i_ino == be32_to_cpu(rec->dir.DirID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) case HFS_CDR_FIL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) return inode->i_ino == be32_to_cpu(rec->file.FlNum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) * hfs_read_inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) static int hfs_read_inode(struct inode *inode, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) struct hfs_iget_data *idata = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) hfs_cat_rec *rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) HFS_I(inode)->flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) HFS_I(inode)->rsrc_inode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) mutex_init(&HFS_I(inode)->extents_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) spin_lock_init(&HFS_I(inode)->open_dir_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) /* Initialize the inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) inode->i_uid = hsb->s_uid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) inode->i_gid = hsb->s_gid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) set_nlink(inode, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) if (idata->key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) HFS_I(inode)->cat_key = *idata->key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) HFS_I(inode)->flags |= HFS_FLG_RSRC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) HFS_I(inode)->tz_secondswest = sys_tz.tz_minuteswest * 60;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) rec = idata->rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) switch (rec->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) case HFS_CDR_FIL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) if (!HFS_IS_RSRC(inode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) hfs_inode_read_fork(inode, rec->file.ExtRec, rec->file.LgLen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) rec->file.PyLen, be16_to_cpu(rec->file.ClpSize));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) hfs_inode_read_fork(inode, rec->file.RExtRec, rec->file.RLgLen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) rec->file.RPyLen, be16_to_cpu(rec->file.ClpSize));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) inode->i_ino = be32_to_cpu(rec->file.FlNum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) inode->i_mode = S_IRUGO | S_IXUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) if (!(rec->file.Flags & HFS_FIL_LOCK))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) inode->i_mode |= S_IWUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) inode->i_mode &= ~hsb->s_file_umask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) inode->i_mode |= S_IFREG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) inode->i_ctime = inode->i_atime = inode->i_mtime =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) hfs_m_to_utime(rec->file.MdDat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) inode->i_op = &hfs_file_inode_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) inode->i_fop = &hfs_file_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) inode->i_mapping->a_ops = &hfs_aops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) case HFS_CDR_DIR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) inode->i_ino = be32_to_cpu(rec->dir.DirID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) inode->i_size = be16_to_cpu(rec->dir.Val) + 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) HFS_I(inode)->fs_blocks = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) inode->i_mode = S_IFDIR | (S_IRWXUGO & ~hsb->s_dir_umask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) inode->i_ctime = inode->i_atime = inode->i_mtime =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) hfs_m_to_utime(rec->dir.MdDat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) inode->i_op = &hfs_dir_inode_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) inode->i_fop = &hfs_dir_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) make_bad_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) * __hfs_iget()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) * Given the MDB for a HFS filesystem, a 'key' and an 'entry' in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) * the catalog B-tree and the 'type' of the desired file return the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) * inode for that file/directory or NULL. Note that 'type' indicates
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) * whether we want the actual file or directory, or the corresponding
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) * metadata (AppleDouble header file or CAP metadata file).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) struct inode *hfs_iget(struct super_block *sb, struct hfs_cat_key *key, hfs_cat_rec *rec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) struct hfs_iget_data data = { key, rec };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) struct inode *inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) u32 cnid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) switch (rec->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) case HFS_CDR_DIR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) cnid = be32_to_cpu(rec->dir.DirID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) case HFS_CDR_FIL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) cnid = be32_to_cpu(rec->file.FlNum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) inode = iget5_locked(sb, cnid, hfs_test_inode, hfs_read_inode, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) if (inode && (inode->i_state & I_NEW))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) unlock_new_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) return inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) void hfs_inode_write_fork(struct inode *inode, struct hfs_extent *ext,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) __be32 *log_size, __be32 *phys_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) memcpy(ext, HFS_I(inode)->first_extents, sizeof(hfs_extent_rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) if (log_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) *log_size = cpu_to_be32(inode->i_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) if (phys_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) *phys_size = cpu_to_be32(HFS_I(inode)->alloc_blocks *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) HFS_SB(inode->i_sb)->alloc_blksz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) struct inode *main_inode = inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) struct hfs_find_data fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) hfs_cat_rec rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) int res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) hfs_dbg(INODE, "hfs_write_inode: %lu\n", inode->i_ino);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) res = hfs_ext_write_extent(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) if (res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) if (inode->i_ino < HFS_FIRSTUSER_CNID) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) switch (inode->i_ino) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) case HFS_ROOT_CNID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) case HFS_EXT_CNID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) hfs_btree_write(HFS_SB(inode->i_sb)->ext_tree);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) case HFS_CAT_CNID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) hfs_btree_write(HFS_SB(inode->i_sb)->cat_tree);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) if (HFS_IS_RSRC(inode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) main_inode = HFS_I(inode)->rsrc_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) if (!main_inode->i_nlink)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) if (hfs_find_init(HFS_SB(main_inode->i_sb)->cat_tree, &fd))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) /* panic? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) fd.search_key->cat = HFS_I(main_inode)->cat_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) if (hfs_brec_find(&fd))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) /* panic? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) if (S_ISDIR(main_inode->i_mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (fd.entrylength < sizeof(struct hfs_cat_dir))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) /* panic? */;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) sizeof(struct hfs_cat_dir));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) if (rec.type != HFS_CDR_DIR ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) be32_to_cpu(rec.dir.DirID) != inode->i_ino) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) rec.dir.MdDat = hfs_u_to_mtime(inode->i_mtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) rec.dir.Val = cpu_to_be16(inode->i_size - 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) sizeof(struct hfs_cat_dir));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) } else if (HFS_IS_RSRC(inode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) sizeof(struct hfs_cat_file));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) hfs_inode_write_fork(inode, rec.file.RExtRec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) &rec.file.RLgLen, &rec.file.RPyLen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) sizeof(struct hfs_cat_file));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) if (fd.entrylength < sizeof(struct hfs_cat_file))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) /* panic? */;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) sizeof(struct hfs_cat_file));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) if (rec.type != HFS_CDR_FIL ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) be32_to_cpu(rec.file.FlNum) != inode->i_ino) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) if (inode->i_mode & S_IWUSR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) rec.file.Flags &= ~HFS_FIL_LOCK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) rec.file.Flags |= HFS_FIL_LOCK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) hfs_inode_write_fork(inode, rec.file.ExtRec, &rec.file.LgLen, &rec.file.PyLen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) rec.file.MdDat = hfs_u_to_mtime(inode->i_mtime);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) sizeof(struct hfs_cat_file));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) hfs_find_exit(&fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) struct inode *inode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) hfs_cat_rec rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) struct hfs_find_data fd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) int res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) if (HFS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) inode = HFS_I(dir)->rsrc_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) if (inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) inode = new_inode(dir->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) if (!inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) res = hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) if (res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) iput(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) return ERR_PTR(res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) fd.search_key->cat = HFS_I(dir)->cat_key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) res = hfs_brec_read(&fd, &rec, sizeof(rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) if (!res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) struct hfs_iget_data idata = { NULL, &rec };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) hfs_read_inode(inode, &idata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) hfs_find_exit(&fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) if (res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) iput(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) return ERR_PTR(res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) HFS_I(inode)->rsrc_inode = dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) HFS_I(dir)->rsrc_inode = inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) igrab(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) inode_fake_hash(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) mark_inode_dirty(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) dont_mount(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) return d_splice_alias(inode, dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) void hfs_evict_inode(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) truncate_inode_pages_final(&inode->i_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) clear_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) if (HFS_IS_RSRC(inode) && HFS_I(inode)->rsrc_inode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) HFS_I(HFS_I(inode)->rsrc_inode)->rsrc_inode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) iput(HFS_I(inode)->rsrc_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) static int hfs_file_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if (HFS_IS_RSRC(inode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) inode = HFS_I(inode)->rsrc_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) atomic_inc(&HFS_I(inode)->opencnt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) static int hfs_file_release(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) //struct super_block *sb = inode->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) if (HFS_IS_RSRC(inode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) inode = HFS_I(inode)->rsrc_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) if (atomic_dec_and_test(&HFS_I(inode)->opencnt)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) inode_lock(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) hfs_file_truncate(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) //if (inode->i_flags & S_DEAD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) // hfs_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) // hfs_delete_inode(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) //}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) inode_unlock(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) * hfs_notify_change()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) * Based very closely on fs/msdos/inode.c by Werner Almesberger
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) * This is the notify_change() field in the super_operations structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) * for HFS file systems. The purpose is to take that changes made to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) * an inode and apply then in a filesystem-dependent manner. In this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) * case the process has a few of tasks to do:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) * 1) prevent changes to the i_uid and i_gid fields.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) * 2) map file permissions to the closest allowable permissions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) * 3) Since multiple Linux files can share the same on-disk inode under
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) * HFS (for instance the data and resource forks of a file) a change
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) * to permissions must be applied to all other in-core inodes which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) * correspond to the same HFS file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) struct inode *inode = d_inode(dentry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) error = setattr_prepare(dentry, attr); /* basic permission checks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) /* no uig/gid changes and limit which mode bits can be set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) if (((attr->ia_valid & ATTR_UID) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) (!uid_eq(attr->ia_uid, hsb->s_uid))) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) ((attr->ia_valid & ATTR_GID) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) (!gid_eq(attr->ia_gid, hsb->s_gid))) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) ((attr->ia_valid & ATTR_MODE) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) ((S_ISDIR(inode->i_mode) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) (attr->ia_mode != inode->i_mode)) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) (attr->ia_mode & ~HFS_VALID_MODE_BITS)))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) return hsb->s_quiet ? 0 : error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) if (attr->ia_valid & ATTR_MODE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) /* Only the 'w' bits can ever change and only all together. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) if (attr->ia_mode & S_IWUSR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) attr->ia_mode = inode->i_mode | S_IWUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) attr->ia_mode = inode->i_mode & ~S_IWUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) attr->ia_mode &= S_ISDIR(inode->i_mode) ? ~hsb->s_dir_umask: ~hsb->s_file_umask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) if ((attr->ia_valid & ATTR_SIZE) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) attr->ia_size != i_size_read(inode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) inode_dio_wait(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) error = inode_newsize_ok(inode, attr->ia_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) truncate_setsize(inode, attr->ia_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) hfs_file_truncate(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) inode->i_atime = inode->i_mtime = inode->i_ctime =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) current_time(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) setattr_copy(inode, attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) mark_inode_dirty(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) static int hfs_file_fsync(struct file *filp, loff_t start, loff_t end,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) int datasync)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) struct inode *inode = filp->f_mapping->host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) struct super_block * sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) int ret, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) ret = file_write_and_wait_range(filp, start, end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) inode_lock(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) /* sync the inode to buffers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) ret = write_inode_now(inode, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) /* sync the superblock to buffers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) sb = inode->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) flush_delayed_work(&HFS_SB(sb)->mdb_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) /* .. finally sync the buffers to disk */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) err = sync_blockdev(sb->s_bdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) ret = err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) inode_unlock(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) static const struct file_operations hfs_file_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) .llseek = generic_file_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) .read_iter = generic_file_read_iter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) .write_iter = generic_file_write_iter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) .mmap = generic_file_mmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) .splice_read = generic_file_splice_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) .fsync = hfs_file_fsync,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) .open = hfs_file_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) .release = hfs_file_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) static const struct inode_operations hfs_file_inode_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) .lookup = hfs_file_lookup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) .setattr = hfs_inode_setattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) .listxattr = generic_listxattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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