| #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 */ |