diff options
Diffstat (limited to 'backport-include/linux/fs.h')
| -rw-r--r-- | backport-include/linux/fs.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/backport-include/linux/fs.h b/backport-include/linux/fs.h new file mode 100644 index 0000000..6e4d4a5 --- /dev/null +++ b/backport-include/linux/fs.h @@ -0,0 +1,52 @@ +#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_IS_LESS(3,4,0) +#define simple_open LINUX_BACKPORT(simple_open) +extern int simple_open(struct inode *inode, struct file *file); +#endif + +#if LINUX_VERSION_IS_LESS(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 */ + +#if (LINUX_VERSION_IS_LESS(4,5,0) && \ + LINUX_VERSION_IS_GEQ(3,2,0)) +#define no_seek_end_llseek LINUX_BACKPORT(no_seek_end_llseek) +extern loff_t no_seek_end_llseek(struct file *, loff_t, int); +#endif /* < 4.5 && >= 3.2 */ + +#endif /* _COMPAT_LINUX_FS_H */ |