^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * linux/fs/minix/dir.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 1991, 1992 Linus Torvalds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * minix directory handling functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Updated to filesystem version 3 by Daniel Aragones
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "minix.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/buffer_head.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/highmem.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/swap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) typedef struct minix_dir_entry minix_dirent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) typedef struct minix3_dir_entry minix3_dirent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static int minix_readdir(struct file *, struct dir_context *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) const struct file_operations minix_dir_operations = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) .llseek = generic_file_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) .read = generic_read_dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) .iterate_shared = minix_readdir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) .fsync = generic_file_fsync,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static inline void dir_put_page(struct page *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) kunmap(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * Return the offset into page `page_nr' of the last valid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * byte in that page, plus one.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static unsigned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) minix_last_byte(struct inode *inode, unsigned long page_nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) unsigned last_byte = PAGE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) if (page_nr == (inode->i_size >> PAGE_SHIFT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) last_byte = inode->i_size & (PAGE_SIZE - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) return last_byte;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static int dir_commit_chunk(struct page *page, loff_t pos, unsigned len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct address_space *mapping = page->mapping;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct inode *dir = mapping->host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) block_write_end(NULL, mapping, pos, len, len, page, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) if (pos+len > dir->i_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) i_size_write(dir, pos+len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) mark_inode_dirty(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (IS_DIRSYNC(dir))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) err = write_one_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) unlock_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static struct page * dir_get_page(struct inode *dir, unsigned long n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct address_space *mapping = dir->i_mapping;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct page *page = read_mapping_page(mapping, n, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (!IS_ERR(page))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) kmap(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) return page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) static inline void *minix_next_entry(void *de, struct minix_sb_info *sbi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return (void*)((char*)de + sbi->s_dirsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static int minix_readdir(struct file *file, struct dir_context *ctx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct inode *inode = file_inode(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct super_block *sb = inode->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) struct minix_sb_info *sbi = minix_sb(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) unsigned chunk_size = sbi->s_dirsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) unsigned long npages = dir_pages(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) unsigned long pos = ctx->pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) unsigned offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) unsigned long n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) ctx->pos = pos = ALIGN(pos, chunk_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) if (pos >= inode->i_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) offset = pos & ~PAGE_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) n = pos >> PAGE_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) for ( ; n < npages; n++, offset = 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) char *p, *kaddr, *limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct page *page = dir_get_page(inode, n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (IS_ERR(page))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) kaddr = (char *)page_address(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) p = kaddr+offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) limit = kaddr + minix_last_byte(inode, n) - chunk_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) for ( ; p <= limit; p = minix_next_entry(p, sbi)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) __u32 inumber;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (sbi->s_version == MINIX_V3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) minix3_dirent *de3 = (minix3_dirent *)p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) name = de3->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) inumber = de3->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) minix_dirent *de = (minix_dirent *)p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) name = de->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) inumber = de->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (inumber) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) unsigned l = strnlen(name, sbi->s_namelen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) if (!dir_emit(ctx, name, l,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) inumber, DT_UNKNOWN)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) dir_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) ctx->pos += chunk_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) dir_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) static inline int namecompare(int len, int maxlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) const char * name, const char * buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) if (len < maxlen && buffer[len])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) return !memcmp(name, buffer, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * minix_find_entry()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * finds an entry in the specified directory with the wanted name. It
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) * returns the cache buffer in which the entry was found, and the entry
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * itself (as a parameter - res_dir). It does NOT read the inode of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * entry - you'll have to do that yourself if you want to.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) minix_dirent *minix_find_entry(struct dentry *dentry, struct page **res_page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) const char * name = dentry->d_name.name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) int namelen = dentry->d_name.len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct inode * dir = d_inode(dentry->d_parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct super_block * sb = dir->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) struct minix_sb_info * sbi = minix_sb(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) unsigned long n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) unsigned long npages = dir_pages(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) struct page *page = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) char *namx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) __u32 inumber;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) *res_page = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) for (n = 0; n < npages; n++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) char *kaddr, *limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) page = dir_get_page(dir, n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (IS_ERR(page))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) kaddr = (char*)page_address(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) limit = kaddr + minix_last_byte(dir, n) - sbi->s_dirsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) for (p = kaddr; p <= limit; p = minix_next_entry(p, sbi)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (sbi->s_version == MINIX_V3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) minix3_dirent *de3 = (minix3_dirent *)p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) namx = de3->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) inumber = de3->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) minix_dirent *de = (minix_dirent *)p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) namx = de->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) inumber = de->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) if (!inumber)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) if (namecompare(namelen, sbi->s_namelen, name, namx))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) goto found;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) dir_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) found:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) *res_page = page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return (minix_dirent *)p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) int minix_add_link(struct dentry *dentry, struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) struct inode *dir = d_inode(dentry->d_parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) const char * name = dentry->d_name.name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) int namelen = dentry->d_name.len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) struct super_block * sb = dir->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) struct minix_sb_info * sbi = minix_sb(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct page *page = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) unsigned long npages = dir_pages(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) unsigned long n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) char *kaddr, *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) minix_dirent *de;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) minix3_dirent *de3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) loff_t pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) char *namx = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) __u32 inumber;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) * We take care of directory expansion in the same loop
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) * This code plays outside i_size, so it locks the page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) * to protect that region.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) for (n = 0; n <= npages; n++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) char *limit, *dir_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) page = dir_get_page(dir, n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) err = PTR_ERR(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) if (IS_ERR(page))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) lock_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) kaddr = (char*)page_address(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) dir_end = kaddr + minix_last_byte(dir, n);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) limit = kaddr + PAGE_SIZE - sbi->s_dirsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) for (p = kaddr; p <= limit; p = minix_next_entry(p, sbi)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) de = (minix_dirent *)p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) de3 = (minix3_dirent *)p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) if (sbi->s_version == MINIX_V3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) namx = de3->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) inumber = de3->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) namx = de->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) inumber = de->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) if (p == dir_end) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) /* We hit i_size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) if (sbi->s_version == MINIX_V3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) de3->inode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) de->inode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) goto got_it;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) if (!inumber)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) goto got_it;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) err = -EEXIST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) if (namecompare(namelen, sbi->s_namelen, name, namx))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) goto out_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) unlock_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) dir_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) BUG();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) got_it:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) pos = page_offset(page) + p - (char *)page_address(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) err = minix_prepare_chunk(page, pos, sbi->s_dirsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) goto out_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) memcpy (namx, name, namelen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) if (sbi->s_version == MINIX_V3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) memset (namx + namelen, 0, sbi->s_dirsize - namelen - 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) de3->inode = inode->i_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) memset (namx + namelen, 0, sbi->s_dirsize - namelen - 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) de->inode = inode->i_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) err = dir_commit_chunk(page, pos, sbi->s_dirsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) dir->i_mtime = dir->i_ctime = current_time(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) mark_inode_dirty(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) out_put:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) dir_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) out_unlock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) unlock_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) goto out_put;
^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) int minix_delete_entry(struct minix_dir_entry *de, struct page *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) struct inode *inode = page->mapping->host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) char *kaddr = page_address(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) loff_t pos = page_offset(page) + (char*)de - kaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) struct minix_sb_info *sbi = minix_sb(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) unsigned len = sbi->s_dirsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) lock_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) err = minix_prepare_chunk(page, pos, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (err == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) if (sbi->s_version == MINIX_V3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) ((minix3_dirent *) de)->inode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) de->inode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) err = dir_commit_chunk(page, pos, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) unlock_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) dir_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) inode->i_ctime = inode->i_mtime = current_time(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) mark_inode_dirty(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) int minix_make_empty(struct inode *inode, struct inode *dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) struct page *page = grab_cache_page(inode->i_mapping, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) struct minix_sb_info *sbi = minix_sb(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) char *kaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) if (!page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) err = minix_prepare_chunk(page, 0, 2 * sbi->s_dirsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) unlock_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) kaddr = kmap_atomic(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) memset(kaddr, 0, PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) if (sbi->s_version == MINIX_V3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) minix3_dirent *de3 = (minix3_dirent *)kaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) de3->inode = inode->i_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) strcpy(de3->name, ".");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) de3 = minix_next_entry(de3, sbi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) de3->inode = dir->i_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) strcpy(de3->name, "..");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) minix_dirent *de = (minix_dirent *)kaddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) de->inode = inode->i_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) strcpy(de->name, ".");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) de = minix_next_entry(de, sbi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) de->inode = dir->i_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) strcpy(de->name, "..");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) kunmap_atomic(kaddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) err = dir_commit_chunk(page, 0, 2 * sbi->s_dirsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) * routine to check that the specified directory is empty (for rmdir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) int minix_empty_dir(struct inode * inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) struct page *page = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) unsigned long i, npages = dir_pages(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct minix_sb_info *sbi = minix_sb(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) __u32 inumber;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) for (i = 0; i < npages; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) char *p, *kaddr, *limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) page = dir_get_page(inode, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) if (IS_ERR(page))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) kaddr = (char *)page_address(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) limit = kaddr + minix_last_byte(inode, i) - sbi->s_dirsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) for (p = kaddr; p <= limit; p = minix_next_entry(p, sbi)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) if (sbi->s_version == MINIX_V3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) minix3_dirent *de3 = (minix3_dirent *)p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) name = de3->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) inumber = de3->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) minix_dirent *de = (minix_dirent *)p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) name = de->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) inumber = de->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) if (inumber != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) /* check for . and .. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) if (name[0] != '.')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) goto not_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) if (!name[1]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if (inumber != inode->i_ino)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) goto not_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) } else if (name[1] != '.')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) goto not_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) else if (name[2])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) goto not_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) dir_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) not_empty:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) dir_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) /* Releases the page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) void minix_set_link(struct minix_dir_entry *de, struct page *page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) struct inode *dir = page->mapping->host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) struct minix_sb_info *sbi = minix_sb(dir->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) loff_t pos = page_offset(page) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) (char *)de-(char*)page_address(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) lock_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) err = minix_prepare_chunk(page, pos, sbi->s_dirsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) if (err == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) if (sbi->s_version == MINIX_V3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) ((minix3_dirent *) de)->inode = inode->i_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) de->inode = inode->i_ino;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) err = dir_commit_chunk(page, pos, sbi->s_dirsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) unlock_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) dir_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) dir->i_mtime = dir->i_ctime = current_time(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) mark_inode_dirty(dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) struct minix_dir_entry * minix_dotdot (struct inode *dir, struct page **p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) struct page *page = dir_get_page(dir, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) struct minix_sb_info *sbi = minix_sb(dir->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) struct minix_dir_entry *de = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) if (!IS_ERR(page)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) de = minix_next_entry(page_address(page), sbi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) *p = page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) return de;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) ino_t minix_inode_by_name(struct dentry *dentry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) struct page *page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) struct minix_dir_entry *de = minix_find_entry(dentry, &page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) ino_t res = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) if (de) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) struct address_space *mapping = page->mapping;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) struct inode *inode = mapping->host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) struct minix_sb_info *sbi = minix_sb(inode->i_sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) if (sbi->s_version == MINIX_V3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) res = ((minix3_dirent *) de)->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) res = de->inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) dir_put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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