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[/] [or1k_old/] [trunk/] [uclinux/] [uClinux-2.0.x/] [fs/] [bad_inode.c] - Blame information for rev 1782

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Line No. Rev Author Line
1 199 simons
/*
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 *  linux/fs/bad_inode.c
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 *
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 *  Copyright (C) 1997, Stephen Tweedie
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 *
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 *  Provide stub functions for unreadable inodes
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 */
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#include <linux/fs.h>
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#include <linux/stat.h>
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#include <linux/sched.h>
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static int return_EIO(void)
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{
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        return -EIO;
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}
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#define EIO_ERROR ((void *) (return_EIO))
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static struct file_operations bad_file_ops =
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{
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        EIO_ERROR,              /* lseek */
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        EIO_ERROR,              /* read */
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        EIO_ERROR,              /* write */
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        EIO_ERROR,              /* readdir */
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        EIO_ERROR,              /* select */
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        EIO_ERROR,              /* ioctl */
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        EIO_ERROR,              /* mmap */
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        EIO_ERROR,              /* open */
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        EIO_ERROR,              /* release */
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        EIO_ERROR,              /* fsync */
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        EIO_ERROR,              /* fasync */
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        EIO_ERROR,              /* check_media_change */
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        EIO_ERROR               /* revalidate */
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#ifdef MAGIC_ROM_PTR
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        ,EIO_ERROR              /* romptr */
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#endif /* MAGIC_ROM_PTR */
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};
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static struct inode_operations bad_inode_ops =
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{
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        &bad_file_ops,          /* default file operations */
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        EIO_ERROR,              /* create */
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        EIO_ERROR,              /* lookup */
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        EIO_ERROR,              /* link */
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        EIO_ERROR,              /* unlink */
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        EIO_ERROR,              /* symlink */
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        EIO_ERROR,              /* mkdir */
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        EIO_ERROR,              /* rmdir */
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        EIO_ERROR,              /* mknod */
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        EIO_ERROR,              /* rename */
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        EIO_ERROR,              /* readlink */
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        EIO_ERROR,              /* follow_link */
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        EIO_ERROR,              /* readpage */
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        EIO_ERROR,              /* writepage */
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        EIO_ERROR,              /* bmap */
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        EIO_ERROR,              /* truncate */
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        EIO_ERROR,              /* permission */
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        EIO_ERROR               /* smap */
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};
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/*
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 * When a filesystem is unable to read an inode due to an I/O error in
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 * its read_inode() function, it can call make_bad_inode() to return a
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 * set of stubs which will return EIO errors as required.
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 *
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 * We only need to do limited initialisation: all other fields are
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 * preinitialised to zero automatically.
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 */
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void make_bad_inode(struct inode * inode)
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{
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        inode->i_mode = S_IFREG;
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        inode->i_flags = S_BAD_INODE;
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        inode->i_atime = CURRENT_TIME;
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        inode->i_mtime = CURRENT_TIME;
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        inode->i_ctime = CURRENT_TIME;
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        inode->i_op = &bad_inode_ops;
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}
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