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Release 4.11 fs/bad_inode.c

Directory: fs
/*
 *  linux/fs/bad_inode.c
 *
 *  Copyright (C) 1997, Stephen Tweedie
 *
 *  Provide stub functions for unreadable inodes
 *
 *  Fabian Frederick : August 2003 - All file operations assigned to EIO
 */

#include <linux/fs.h>
#include <linux/export.h>
#include <linux/stat.h>
#include <linux/time.h>
#include <linux/namei.h>
#include <linux/poll.h>


static int bad_file_open(struct inode *inode, struct file *filp) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen20100.00%1100.00%
Total20100.00%1100.00%

static const struct file_operations bad_file_ops = { .open = bad_file_open, };
static int bad_inode_create (struct inode *dir, struct dentry *dentry, umode_t mode, bool excl) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen2388.46%133.33%
Al Viro311.54%266.67%
Total26100.00%3100.00%


static struct dentry *bad_inode_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags) { return ERR_PTR(-EIO); }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen2689.66%150.00%
Al Viro310.34%150.00%
Total29100.00%2100.00%


static int bad_inode_link (struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen25100.00%1100.00%
Total25100.00%1100.00%


static int bad_inode_unlink(struct inode *dir, struct dentry *dentry) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen20100.00%1100.00%
Total20100.00%1100.00%


static int bad_inode_symlink (struct inode *dir, struct dentry *dentry, const char *symname) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen25100.00%1100.00%
Total25100.00%1100.00%


static int bad_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen2295.65%150.00%
Al Viro14.35%150.00%
Total23100.00%2100.00%


static int bad_inode_rmdir (struct inode *dir, struct dentry *dentry) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen20100.00%1100.00%
Total20100.00%1100.00%


static int bad_inode_mknod (struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen2596.15%150.00%
Al Viro13.85%150.00%
Total26100.00%2100.00%


static int bad_inode_rename2(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry, unsigned int flags) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen2985.29%150.00%
Miklos Szeredi514.71%150.00%
Total34100.00%2100.00%


static int bad_inode_readlink(struct dentry *dentry, char __user *buffer, int buflen) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen23100.00%1100.00%
Total23100.00%1100.00%


static int bad_inode_permission(struct inode *inode, int mask) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen18100.00%1100.00%
Total18100.00%1100.00%


static int bad_inode_getattr(const struct path *path, struct kstat *stat, u32 request_mask, unsigned int query_flags) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen1864.29%150.00%
David Howells1035.71%150.00%
Total28100.00%2100.00%


static int bad_inode_setattr(struct dentry *direntry, struct iattr *attrs) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen20100.00%1100.00%
Total20100.00%1100.00%


static ssize_t bad_inode_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen2090.91%150.00%
Linus Torvalds (pre-git)29.09%150.00%
Total22100.00%2100.00%


static const char *bad_inode_get_link(struct dentry *dentry, struct inode *inode, struct delayed_call *done) { return ERR_PTR(-EIO); }

Contributors

PersonTokensPropCommitsCommitProp
Miklos Szeredi30100.00%1100.00%
Total30100.00%1100.00%


static struct posix_acl *bad_inode_get_acl(struct inode *inode, int type) { return ERR_PTR(-EIO); }

Contributors

PersonTokensPropCommitsCommitProp
Miklos Szeredi23100.00%1100.00%
Total23100.00%1100.00%


static int bad_inode_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, u64 start, u64 len) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Miklos Szeredi26100.00%1100.00%
Total26100.00%1100.00%


static int bad_inode_update_time(struct inode *inode, struct timespec *time, int flags) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Miklos Szeredi23100.00%1100.00%
Total23100.00%1100.00%


static int bad_inode_atomic_open(struct inode *inode, struct dentry *dentry, struct file *file, unsigned int open_flag, umode_t create_mode, int *opened) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Miklos Szeredi36100.00%1100.00%
Total36100.00%1100.00%


static int bad_inode_tmpfile(struct inode *inode, struct dentry *dentry, umode_t mode) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Miklos Szeredi23100.00%1100.00%
Total23100.00%1100.00%


static int bad_inode_set_acl(struct inode *inode, struct posix_acl *acl, int type) { return -EIO; }

Contributors

PersonTokensPropCommitsCommitProp
Miklos Szeredi23100.00%1100.00%
Total23100.00%1100.00%

static const struct inode_operations bad_inode_ops = { .create = bad_inode_create, .lookup = bad_inode_lookup, .link = bad_inode_link, .unlink = bad_inode_unlink, .symlink = bad_inode_symlink, .mkdir = bad_inode_mkdir, .rmdir = bad_inode_rmdir, .mknod = bad_inode_mknod, .rename = bad_inode_rename2, .readlink = bad_inode_readlink, .permission = bad_inode_permission, .getattr = bad_inode_getattr, .setattr = bad_inode_setattr, .listxattr = bad_inode_listxattr, .get_link = bad_inode_get_link, .get_acl = bad_inode_get_acl, .fiemap = bad_inode_fiemap, .update_time = bad_inode_update_time, .atomic_open = bad_inode_atomic_open, .tmpfile = bad_inode_tmpfile, .set_acl = bad_inode_set_acl, }; /* * When a filesystem is unable to read an inode due to an I/O error in * its read_inode() function, it can call make_bad_inode() to return a * set of stubs which will return EIO errors as required. * * We only need to do limited initialisation: all other fields are * preinitialised to zero automatically. */ /** * make_bad_inode - mark an inode bad due to an I/O error * @inode: Inode to mark bad * * When an inode cannot be read due to a media or remote network * failure this function makes the inode "bad" and causes I/O operations * on it to fail from this point on. */
void make_bad_inode(struct inode *inode) { remove_inode_hash(inode); inode->i_mode = S_IFREG; inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode); inode->i_op = &bad_inode_ops; inode->i_opflags &= ~IOP_XATTR; inode->i_fop = &bad_file_ops; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)4372.88%233.33%
Andreas Gruenbacher711.86%116.67%
Christoph Hellwig58.47%116.67%
Andi Kleen35.08%116.67%
Deepa Dinamani11.69%116.67%
Total59100.00%6100.00%

EXPORT_SYMBOL(make_bad_inode); /* * This tests whether an inode has been flagged as bad. The test uses * &bad_inode_ops to cover the case of invalidated inodes as well as * those created by make_bad_inode() above. */ /** * is_bad_inode - is an inode errored * @inode: inode to test * * Returns true if the inode in question has been marked as bad. */
bool is_bad_inode(struct inode *inode) { return (inode->i_op == &bad_inode_ops); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)1995.00%150.00%
Yaowei Bai15.00%150.00%
Total20100.00%2100.00%

EXPORT_SYMBOL(is_bad_inode); /** * iget_failed - Mark an under-construction inode as dead and release it * @inode: The inode to discard * * Mark an under-construction inode as dead and release it. */
void iget_failed(struct inode *inode) { make_bad_inode(inode); unlock_new_inode(inode); iput(inode); }

Contributors

PersonTokensPropCommitsCommitProp
David Howells25100.00%1100.00%
Total25100.00%1100.00%

EXPORT_SYMBOL(iget_failed);

Overall Contributors

PersonTokensPropCommitsCommitProp
Eric Sandeen36344.70%13.12%
Miklos Szeredi22627.83%39.38%
Linus Torvalds (pre-git)10212.56%515.62%
David Howells415.05%26.25%
Art Haas242.96%13.12%
Arnaldo Carvalho de Melo121.48%13.12%
Al Viro111.35%721.88%
Andrew Morton91.11%13.12%
Andreas Gruenbacher70.86%13.12%
Christoph Hellwig50.62%13.12%
Andi Kleen30.37%13.12%
Dave Hansen20.25%13.12%
Deepa Dinamani10.12%13.12%
Paul Gortmaker10.12%13.12%
Adrian Bunk10.12%13.12%
Dave Jones10.12%13.12%
Hugh Dickins10.12%13.12%
Yaowei Bai10.12%13.12%
Arjan van de Ven10.12%13.12%
Total812100.00%32100.00%
Directory: fs
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