diff options
Diffstat (limited to 'include/linux/vfs_compat.h')
| -rw-r--r-- | include/linux/vfs_compat.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/vfs_compat.h b/include/linux/vfs_compat.h index bccf0d01f..17fa3ff7b 100644 --- a/include/linux/vfs_compat.h +++ b/include/linux/vfs_compat.h @@ -152,4 +152,26 @@ typedef int zpl_umode_t; #define ZFS_IOC_GETFLAGS FS_IOC_GETFLAGS #define ZFS_IOC_SETFLAGS FS_IOC_SETFLAGS +#if defined(SEEK_HOLE) && defined(SEEK_DATA) && !defined(HAVE_LSEEK_EXECUTE) +static inline loff_t +lseek_execute(struct file *filp, struct inode *inode, + loff_t offset, loff_t maxsize) +{ + if (offset < 0 && !(filp->f_mode & FMODE_UNSIGNED_OFFSET)) + return (-EINVAL); + + if (offset > maxsize) + return (-EINVAL); + + if (offset != filp->f_pos) { + spin_lock(&filp->f_lock); + filp->f_pos = offset; + filp->f_version = 0; + spin_unlock(&filp->f_lock); + } + + return (offset); +} +#endif /* SEEK_HOLE && SEEK_DATA && !HAVE_LSEEK_EXECUTE */ + #endif /* _ZFS_VFS_H */ |