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Diffstat (limited to 'config/kernel-file-dentry.m4')
| -rw-r--r-- | config/kernel-file-dentry.m4 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/config/kernel-file-dentry.m4 b/config/kernel-file-dentry.m4 new file mode 100644 index 000000000..daf742ee1 --- /dev/null +++ b/config/kernel-file-dentry.m4 @@ -0,0 +1,20 @@ +dnl # +dnl # 4.1 API change +dnl # struct access file->f_path.dentry was replaced by accessor function +dnl # since fix torvalds/linux@4bacc9c9234c ("overlayfs: Make f_path always +dnl # point to the overlay and f_inode to the underlay"). +dnl # +AC_DEFUN([ZFS_AC_KERNEL_FILE_DENTRY], [ + AC_MSG_CHECKING([whether file_dentry() is available]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/fs.h> + ],[ + struct file *f = NULL; + file_dentry(f); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_FILE_DENTRY, 1, [file_dentry() is available]) + ],[ + AC_MSG_RESULT(no) + ]) +]) |