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85391ee931
Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #18077
28 lines
795 B
Plaintext
28 lines
795 B
Plaintext
dnl # SPDX-License-Identifier: CDDL-1.0
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dnl #
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dnl # Linux 5.16 no longer allows directly calling wait_on_page_bit, and
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dnl # instead requires you to call folio-specific functions. In this case,
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dnl # wait_on_page_bit(pg, PG_writeback) becomes
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dnl # folio_wait_bit(pg, PG_writeback)
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_PAGEMAP_FOLIO_WAIT_BIT], [
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ZFS_LINUX_TEST_SRC([pagemap_has_folio_wait_bit], [
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#include <linux/pagemap.h>
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],[
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static struct folio *f = NULL;
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folio_wait_bit(f, PG_writeback);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_PAGEMAP_FOLIO_WAIT_BIT], [
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AC_MSG_CHECKING([whether folio_wait_bit() exists])
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ZFS_LINUX_TEST_RESULT([pagemap_has_folio_wait_bit], [
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_PAGEMAP_FOLIO_WAIT_BIT, 1,
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[folio_wait_bit() exists])
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],[
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AC_MSG_RESULT([no])
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])
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])
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