diff options
Diffstat (limited to 'config/kernel-filemap.m4')
| -rw-r--r-- | config/kernel-filemap.m4 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/config/kernel-filemap.m4 b/config/kernel-filemap.m4 new file mode 100644 index 000000000000..0b7da828d299 --- /dev/null +++ b/config/kernel-filemap.m4 @@ -0,0 +1,27 @@ +dnl # +dnl # filemap_range_has_page was not available till 4.13 +dnl # +AC_DEFUN([ZFS_AC_KERNEL_SRC_FILEMAP], [ + ZFS_LINUX_TEST_SRC([filemap_range_has_page], [ + #include <linux/fs.h> + #include <linux/pagemap.h> + ],[ + struct address_space *mapping = NULL; + loff_t lstart = 0; + loff_t lend = 0; + bool ret __attribute__ ((unused)); + + ret = filemap_range_has_page(mapping, lstart, lend); + ]) +]) + +AC_DEFUN([ZFS_AC_KERNEL_FILEMAP], [ + AC_MSG_CHECKING([whether filemap_range_has_page() is available]) + ZFS_LINUX_TEST_RESULT([filemap_range_has_page], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_FILEMAP_RANGE_HAS_PAGE, 1, + [filemap_range_has_page() is available]) + ],[ + AC_MSG_RESULT(no) + ]) +]) |