mirror_zfs/config/kernel-writepage_t.m4

AC_DEFUN([ZFS_AC_KERNEL_SRC_WRITEPAGE_T], [
	dnl #
	dnl # 6.3 API change
	dnl # The writepage_t function type now has its first argument as
	dnl # struct folio* instead of struct page*
	dnl #
	ZFS_LINUX_TEST_SRC([writepage_t_folio], [
		#include <linux/writeback.h>
		static int putpage(struct folio *folio,
		    struct writeback_control *wbc, void *data)
		{ return 0; }
		writepage_t func = putpage;
	],[])
])

AC_DEFUN([ZFS_AC_KERNEL_WRITEPAGE_T], [
	AC_MSG_CHECKING([whether int (*writepage_t)() takes struct folio*])
	ZFS_LINUX_TEST_RESULT([writepage_t_folio], [
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_WRITEPAGE_T_FOLIO, 1,
		   [int (*writepage_t)() takes struct folio*])
	],[
		AC_MSG_RESULT(no)
	])
])
Linux 6.3 compat: writepage_t first arg struct folio* The type def of writepage_t in kernel 6.3 is changed to take struct folio* as the first argument. We need to detect this change and pass correct function to write_cache_pages(). Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Brian Atkinson <batkinson@lanl.gov> Signed-off-by: Youzhong Yang <yyang@mathworks.com> Closes #14699 2023-04-05 20:01:38 +03:00			`AC_DEFUN([ZFS_AC_KERNEL_SRC_WRITEPAGE_T], [`
			`dnl #`
			`dnl # 6.3 API change`
			`dnl # The writepage_t function type now has its first argument as`
			`dnl # struct folio* instead of struct page*`
			`dnl #`
			`ZFS_LINUX_TEST_SRC([writepage_t_folio], [`
			`#include <linux/writeback.h>`
Linux 6.8 compat: make test functions static The kernel is now being compiled with -Wmissing-prototypes. Most of our test stub functions had no prototype, and failed to compile. Since they don't need to be visible anywhere else, just make them all static. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rob Norris <robn@despairlabs.com> Sponsored-by: https://despairlabs.com/sponsor/ Closes #15805 2024-01-23 02:50:53 +03:00			`static int putpage(struct folio *folio,`
Linux 6.3 compat: writepage_t first arg struct folio* The type def of writepage_t in kernel 6.3 is changed to take struct folio* as the first argument. We need to detect this change and pass correct function to write_cache_pages(). Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Brian Atkinson <batkinson@lanl.gov> Signed-off-by: Youzhong Yang <yyang@mathworks.com> Closes #14699 2023-04-05 20:01:38 +03:00			`struct writeback_control wbc, void data)`
			`{ return 0; }`
			`writepage_t func = putpage;`
			`],[])`
			`])`

			`AC_DEFUN([ZFS_AC_KERNEL_WRITEPAGE_T], [`
			`AC_MSG_CHECKING([whether int (writepage_t)() takes struct folio])`
			`ZFS_LINUX_TEST_RESULT([writepage_t_folio], [`
			`AC_MSG_RESULT(yes)`
			`AC_DEFINE(HAVE_WRITEPAGE_T_FOLIO, 1,`
			`[int (writepage_t)() takes struct folio])`
			`],[`
			`AC_MSG_RESULT(no)`
			`])`
			`])`