b24413180f560 (Greg Kroah-Hartman 2017-11-01 15:07:57 +0100 1) // SPDX-License-Identifier: GPL-2.0
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 2) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 3) * linux/fs/bad_inode.c
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 4) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 5) * Copyright (C) 1997, Stephen Tweedie
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 6) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 7) * Provide stub functions for unreadable inodes
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 8) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 9) * Fabian Frederick : August 2003 - All file operations assigned to EIO
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 10) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 11)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 12) #include <linux/fs.h>
630d9c47274aa (Paul Gortmaker 2011-11-16 23:57:37 -0500 13) #include <linux/export.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 14) #include <linux/stat.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 15) #include <linux/time.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 16) #include <linux/namei.h>
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 17) #include <linux/poll.h>
10c5db286452b (Christoph Hellwig 2020-05-23 09:30:11 +0200 18) #include <linux/fiemap.h>
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 19)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 20) static int bad_file_open(struct inode *inode, struct file *filp)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 21) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 22) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 23) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 24)
4b6f5d20b04dc (Arjan van de Ven 2006-03-28 01:56:42 -0800 25) static const struct file_operations bad_file_ops =
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 26) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 27) .open = bad_file_open,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 28) };
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 29)
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 30) static int bad_inode_create(struct user_namespace *mnt_userns,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 31) struct inode *dir, struct dentry *dentry,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 32) umode_t mode, bool excl)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 33) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 34) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 35) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 36)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 37) static struct dentry *bad_inode_lookup(struct inode *dir,
00cd8dd3bf95f (Al Viro 2012-06-10 17:13:09 -0400 38) struct dentry *dentry, unsigned int flags)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 39) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 40) return ERR_PTR(-EIO);
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 41) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 42)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 43) static int bad_inode_link (struct dentry *old_dentry, struct inode *dir,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 44) struct dentry *dentry)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 45) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 46) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 47) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 48)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 49) static int bad_inode_unlink(struct inode *dir, struct dentry *dentry)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 50) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 51) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 52) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 53)
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 54) static int bad_inode_symlink(struct user_namespace *mnt_userns,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 55) struct inode *dir, struct dentry *dentry,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 56) const char *symname)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 57) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 58) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 59) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 60)
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 61) static int bad_inode_mkdir(struct user_namespace *mnt_userns, struct inode *dir,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 62) struct dentry *dentry, umode_t mode)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 63) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 64) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 65) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 66)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 67) static int bad_inode_rmdir (struct inode *dir, struct dentry *dentry)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 68) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 69) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 70) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 71)
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 72) static int bad_inode_mknod(struct user_namespace *mnt_userns, struct inode *dir,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 73) struct dentry *dentry, umode_t mode, dev_t rdev)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 74) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 75) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 76) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 77)
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 78) static int bad_inode_rename2(struct user_namespace *mnt_userns,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 79) struct inode *old_dir, struct dentry *old_dentry,
a0dbc56610b3e (Miklos Szeredi 2014-07-23 15:15:31 +0200 80) struct inode *new_dir, struct dentry *new_dentry,
a0dbc56610b3e (Miklos Szeredi 2014-07-23 15:15:31 +0200 81) unsigned int flags)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 82) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 83) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 84) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 85)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 86) static int bad_inode_readlink(struct dentry *dentry, char __user *buffer,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 87) int buflen)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 88) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 89) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 90) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 91)
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 92) static int bad_inode_permission(struct user_namespace *mnt_userns,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 93) struct inode *inode, int mask)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 94) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 95) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 96) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 97)
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 98) static int bad_inode_getattr(struct user_namespace *mnt_userns,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 99) const struct path *path, struct kstat *stat,
a528d35e8bfcc (David Howells 2017-01-31 16:46:22 +0000 100) u32 request_mask, unsigned int query_flags)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 101) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 102) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 103) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 104)
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 105) static int bad_inode_setattr(struct user_namespace *mnt_userns,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 106) struct dentry *direntry, struct iattr *attrs)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 107) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 108) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 109) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 110)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 111) static ssize_t bad_inode_listxattr(struct dentry *dentry, char *buffer,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 112) size_t buffer_size)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 113) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 114) return -EIO;
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 115) }
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 116)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 117) static const char *bad_inode_get_link(struct dentry *dentry,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 118) struct inode *inode,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 119) struct delayed_call *done)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 120) {
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 121) return ERR_PTR(-EIO);
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 122) }
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 123)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 124) static struct posix_acl *bad_inode_get_acl(struct inode *inode, int type)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 125) {
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 126) return ERR_PTR(-EIO);
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 127) }
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 128)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 129) static int bad_inode_fiemap(struct inode *inode,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 130) struct fiemap_extent_info *fieinfo, u64 start,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 131) u64 len)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 132) {
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 133) return -EIO;
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 134) }
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 135)
95582b0083883 (Deepa Dinamani 2018-05-08 19:36:02 -0700 136) static int bad_inode_update_time(struct inode *inode, struct timespec64 *time,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 137) int flags)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 138) {
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 139) return -EIO;
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 140) }
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 141)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 142) static int bad_inode_atomic_open(struct inode *inode, struct dentry *dentry,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 143) struct file *file, unsigned int open_flag,
44907d7900246 (Al Viro 2018-06-08 13:32:02 -0400 144) umode_t create_mode)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 145) {
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 146) return -EIO;
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 147) }
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 148)
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 149) static int bad_inode_tmpfile(struct user_namespace *mnt_userns,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 150) struct inode *inode, struct dentry *dentry,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 151) umode_t mode)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 152) {
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 153) return -EIO;
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 154) }
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 155)
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 156) static int bad_inode_set_acl(struct user_namespace *mnt_userns,
549c7297717c3 (Christian Brauner 2021-01-21 14:19:43 +0100 157) struct inode *inode, struct posix_acl *acl,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 158) int type)
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 159) {
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 160) return -EIO;
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 161) }
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 162)
754661f143e70 (Arjan van de Ven 2007-02-12 00:55:38 -0800 163) static const struct inode_operations bad_inode_ops =
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 164) {
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 165) .create = bad_inode_create,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 166) .lookup = bad_inode_lookup,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 167) .link = bad_inode_link,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 168) .unlink = bad_inode_unlink,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 169) .symlink = bad_inode_symlink,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 170) .mkdir = bad_inode_mkdir,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 171) .rmdir = bad_inode_rmdir,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 172) .mknod = bad_inode_mknod,
2773bf00aeb9b (Miklos Szeredi 2016-09-27 11:03:58 +0200 173) .rename = bad_inode_rename2,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 174) .readlink = bad_inode_readlink,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 175) .permission = bad_inode_permission,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 176) .getattr = bad_inode_getattr,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 177) .setattr = bad_inode_setattr,
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 178) .listxattr = bad_inode_listxattr,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 179) .get_link = bad_inode_get_link,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 180) .get_acl = bad_inode_get_acl,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 181) .fiemap = bad_inode_fiemap,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 182) .update_time = bad_inode_update_time,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 183) .atomic_open = bad_inode_atomic_open,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 184) .tmpfile = bad_inode_tmpfile,
3f9ca75516a7e (Miklos Szeredi 2016-12-09 11:57:43 +0100 185) .set_acl = bad_inode_set_acl,
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 186) };
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 187)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 188)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 189) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 190) * When a filesystem is unable to read an inode due to an I/O error in
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 191) * its read_inode() function, it can call make_bad_inode() to return a
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 192) * set of stubs which will return EIO errors as required.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 193) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 194) * We only need to do limited initialisation: all other fields are
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 195) * preinitialised to zero automatically.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 196) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 197)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 198) /**
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 199) * make_bad_inode - mark an inode bad due to an I/O error
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 200) * @inode: Inode to mark bad
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 201) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 202) * When an inode cannot be read due to a media or remote network
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 203) * failure this function makes the inode "bad" and causes I/O operations
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 204) * on it to fail from this point on.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 205) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 206)
be6aab0e9fa6d (Eric Sandeen 2007-01-05 16:36:36 -0800 207) void make_bad_inode(struct inode *inode)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 208) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 209) remove_inode_hash(inode);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 210)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 211) inode->i_mode = S_IFREG;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 212) inode->i_atime = inode->i_mtime = inode->i_ctime =
c2050a454c7f1 (Deepa Dinamani 2016-09-14 07:48:06 -0700 213) current_time(inode);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 214) inode->i_op = &bad_inode_ops;
5f6e59ae8277c (Andreas Gruenbacher 2016-09-29 17:48:40 +0200 215) inode->i_opflags &= ~IOP_XATTR;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 216) inode->i_fop = &bad_file_ops;
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 217) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 218) EXPORT_SYMBOL(make_bad_inode);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 219)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 220) /*
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 221) * This tests whether an inode has been flagged as bad. The test uses
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 222) * &bad_inode_ops to cover the case of invalidated inodes as well as
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 223) * those created by make_bad_inode() above.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 224) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 225)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 226) /**
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 227) * is_bad_inode - is an inode errored
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 228) * @inode: inode to test
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 229) *
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 230) * Returns true if the inode in question has been marked as bad.
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 231) */
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 232)
0e3ef1fe453c9 (Yaowei Bai 2015-11-19 21:00:11 +0800 233) bool is_bad_inode(struct inode *inode)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 234) {
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 235) return (inode->i_op == &bad_inode_ops);
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 236) }
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 237)
^1da177e4c3f4 (Linus Torvalds 2005-04-16 15:20:36 -0700 238) EXPORT_SYMBOL(is_bad_inode);
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 239)
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 240) /**
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 241) * iget_failed - Mark an under-construction inode as dead and release it
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 242) * @inode: The inode to discard
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 243) *
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 244) * Mark an under-construction inode as dead and release it.
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 245) */
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 246) void iget_failed(struct inode *inode)
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 247) {
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 248) make_bad_inode(inode);
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 249) unlock_new_inode(inode);
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 250) iput(inode);
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 251) }
b46980feed937 (David Howells 2008-02-07 00:15:27 -0800 252) EXPORT_SYMBOL(iget_failed);
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