blob: 2790db6ed394b1c123de74ffb0697a0a10b11c86 [file] [log] [blame]
#ifndef _COMPAT_LINUX_FS_H
#define _COMPAT_LINUX_FS_H
#include_next <linux/fs.h>
#include <linux/version.h>
/*
* some versions don't have this and thus don't
* include it from the original fs.h
*/
#include <linux/uidgid.h>
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0))
#define simple_open LINUX_BACKPORT(simple_open)
extern int simple_open(struct inode *inode, struct file *file);
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0)
/**
* backport of:
*
* commit 496ad9aa8ef448058e36ca7a787c61f2e63f0f54
* Author: Al Viro <viro@zeniv.linux.org.uk>
* Date: Wed Jan 23 17:07:38 2013 -0500
*
* new helper: file_inode(file)
*/
static inline struct inode *file_inode(struct file *f)
{
return f->f_path.dentry->d_inode;
}
#endif
#ifndef replace_fops
/*
* This one is to be used *ONLY* from ->open() instances.
* fops must be non-NULL, pinned down *and* module dependencies
* should be sufficient to pin the caller down as well.
*/
#define replace_fops(f, fops) \
do { \
struct file *__file = (f); \
fops_put(__file->f_op); \
BUG_ON(!(__file->f_op = (fops))); \
} while(0)
#endif /* replace_fops */
#endif /* _COMPAT_LINUX_FS_H */