litmus-rt.git - The LITMUS^RT kernel.

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author	Wim Van Sebroeck <wim@iguana.be>	2006-08-05 14:59:01 -0400
committer	Wim Van Sebroeck <wim@iguana.be>	2006-10-03 15:35:09 -0400
commit	1bef84bea273f40486936ae97cda70ee8b252cd0 (patch)
tree	7f1a9cd2972f9201f7f79c73ca8aa92db6e78be0 /drivers/fc4
parent	4802c6533af3223f43b9e4a1bb8a2a1c51f398b1 (diff)

[WATCHDOG] iTCO_wdt.c shutdown patch

Since we are using the device driver model, we don't need to arrange the shutdown via a reboot_notifier. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

Diffstat (limited to 'drivers/fc4')

0 files changed, 0 insertions, 0 deletions

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/* * 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/module.h> #include <linux/stat.h> #include <linux/time.h> #include <linux/namei.h> #include <linux/poll.h> static loff_t bad_file_llseek(struct file *file, loff_t offset, int origin) { return -EIO; } static ssize_t bad_file_read(struct file *filp, char __user *buf, size_t size, loff_t *ppos) { return -EIO; } static ssize_t bad_file_write(struct file *filp, const char __user *buf, size_t siz, loff_t *ppos) { return -EIO; } static ssize_t bad_file_aio_read(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) { return -EIO; } static ssize_t bad_file_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) { return -EIO; } static int bad_file_readdir(struct file *filp, void *dirent, filldir_t filldir) { return -EIO; } static unsigned int bad_file_poll(struct file *filp, poll_table *wait) { return POLLERR; } static int bad_file_ioctl (struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { return -EIO; } static long bad_file_unlocked_ioctl(struct file *file, unsigned cmd, unsigned long arg) { return -EIO; } static long bad_file_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { return -EIO; } static int bad_file_mmap(struct file *file, struct vm_area_struct *vma) { return -EIO; } static int bad_file_open(struct inode *inode, struct file *filp) { return -EIO; } static int bad_file_flush(struct file *file, fl_owner_t id) { return -EIO; } static int bad_file_release(struct inode *inode, struct file *filp) { return -EIO; } static int bad_file_fsync(struct file *file, struct dentry *dentry, int datasync) { return -EIO; } static int bad_file_aio_fsync(struct kiocb *iocb, int datasync) { return -EIO; } static int bad_file_fasync(int fd, struct file *filp, int on) { return -EIO; } static int bad_file_lock(struct file *file, int cmd, struct file_lock *fl) { return -EIO; } static ssize_t bad_file_sendpage(struct file *file, struct page *page, int off, size_t len, loff_t *pos, int more) { return -EIO; } static unsigned long bad_file_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) { return -EIO; } static int bad_file_check_flags(int flags) { return -EIO; } static int bad_file_dir_notify(struct file *file, unsigned long arg) { return -EIO; } static int bad_file_flock(struct file *filp, int cmd, struct file_lock *fl) { return -EIO; } static ssize_t bad_file_splice_write(struct pipe_inode_info *pipe, struct file *out, loff_t *ppos, size_t len, unsigned int flags) { return -EIO; } static ssize_t bad_file_splice_read(struct file *in, loff_t *ppos, struct pipe_inode_info *pipe, size_t len, unsigned int flags) { return -EIO; } static const struct file_operations bad_file_ops = { .llseek = bad_file_llseek, .read = bad_file_read, .write = bad_file_write, .aio_read = bad_file_aio_read, .aio_write = bad_file_aio_write, .readdir = bad_file_readdir, .poll = bad_file_poll, .ioctl = bad_file_ioctl, .unlocked_ioctl = bad_file_unlocked_ioctl, .compat_ioctl = bad_file_compat_ioctl, .mmap = bad_file_mmap, .open = bad_file_open, .flush = bad_file_flush, .release = bad_file_release, .fsync = bad_file_fsync, .aio_fsync = bad_file_aio_fsync, .fasync = bad_file_fasync, .lock = bad_file_lock, .sendpage = bad_file_sendpage, .get_unmapped_area = bad_file_get_unmapped_area, .check_flags = bad_file_check_flags, .dir_notify = bad_file_dir_notify, .flock = bad_file_flock, .splice_write = bad_file_splice_write, .splice_read = bad_file_splice_read, }; static int bad_inode_create (struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd) { return -EIO; } static struct dentry *bad_inode_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) { return ERR_PTR(-EIO); } static int bad_inode_link (struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) { return -EIO; } static int bad_inode_unlink(struct inode *dir, struct dentry *dentry) { return -EIO; } static int bad_inode_symlink (struct inode *dir, struct dentry *dentry, const char *symname) { return -EIO; } static int bad_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode) { return -EIO; } static int bad_inode_rmdir (struct inode *dir, struct dentry *dentry) { return -EIO; } static int bad_inode_mknod (struct inode *dir, struct dentry *dentry, int mode, dev_t rdev) { return -EIO; } static int bad_inode_rename (struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry) { return -EIO; } static int bad_inode_readlink(struct dentry *dentry, char __user *buffer, int buflen) { return -EIO; } static int bad_inode_permission(struct inode *inode, int mask, struct nameidata *nd) { return -EIO; } static int bad_inode_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) { return -EIO; } static int bad_inode_setattr(struct dentry *direntry, struct iattr *attrs) { return -EIO; } static int bad_inode_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags) { return -EIO; } static ssize_t bad_inode_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size) { return -EIO; } static ssize_t bad_inode_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size) { return -EIO; } static int bad_inode_removexattr(struct dentry *dentry, const char *name) { return -EIO; } 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_rename, .readlink = bad_inode_readlink, /* follow_link must be no-op, otherwise unmounting this inode won't work */ /* put_link returns void */ /* truncate returns void */ .permission = bad_inode_permission, .getattr = bad_inode_getattr, .setattr = bad_inode_setattr, .setxattr = bad_inode_setxattr, .getxattr = bad_inode_getxattr, .listxattr = bad_inode_listxattr, .removexattr = bad_inode_removexattr, /* truncate_range returns void */ }; /* * 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_fs_time(inode->i_sb); inode->i_op = &bad_inode_ops; inode->i_fop = &bad_file_ops; } 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. */ int is_bad_inode(struct inode *inode) { return (inode->i_op == &bad_inode_ops); } EXPORT_SYMBOL(is_bad_inode);


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