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7cdfda3934
It always failed from "unused variable" warnings-errors. The resulting `#define page_mapping(...)` happend to work because it always overrode the kernel's function prototype, but that's brittle. Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #16479
37 lines
849 B
Plaintext
37 lines
849 B
Plaintext
AC_DEFUN([ZFS_AC_KERNEL_SRC_MM_PAGE_SIZE], [
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ZFS_LINUX_TEST_SRC([page_size], [
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#include <linux/mm.h>
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],[
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unsigned long s;
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s = page_size(NULL);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_MM_PAGE_SIZE], [
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AC_MSG_CHECKING([whether page_size() is available])
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ZFS_LINUX_TEST_RESULT([page_size], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_MM_PAGE_SIZE, 1, [page_size() is available])
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],[
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AC_MSG_RESULT(no)
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SRC_MM_PAGE_MAPPING], [
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ZFS_LINUX_TEST_SRC([page_mapping], [
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#include <linux/pagemap.h>
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],[
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struct address_space *m;
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m = page_mapping(NULL);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_MM_PAGE_MAPPING], [
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AC_MSG_CHECKING([whether page_mapping() is available])
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ZFS_LINUX_TEST_RESULT([page_mapping], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_MM_PAGE_MAPPING, 1, [page_mapping() is available])
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],[
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AC_MSG_RESULT(no)
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])
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])
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