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35 lines
1.2 KiB
Plaintext
35 lines
1.2 KiB
Plaintext
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dnl #
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dnl # Linux 5.14 adds a change to require set_page_dirty to be manually
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dnl # wired up in struct address_space_operations. Determine if this needs
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dnl # to be done. This patch set also introduced __set_page_dirty_nobuffers
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dnl # declaration in linux/pagemap.h, so these tests look for the presence
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dnl # of that function to tell the compiler to assign set_page_dirty in
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dnl # module/os/linux/zfs/zpl_file.c
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_VFS_SET_PAGE_DIRTY_NOBUFFERS], [
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ZFS_LINUX_TEST_SRC([vfs_has_set_page_dirty_nobuffers], [
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#include <linux/pagemap.h>
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#include <linux/fs.h>
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static const struct address_space_operations
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aops __attribute__ ((unused)) = {
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.set_page_dirty = __set_page_dirty_nobuffers,
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};
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],[])
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])
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AC_DEFUN([ZFS_AC_KERNEL_VFS_SET_PAGE_DIRTY_NOBUFFERS], [
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dnl #
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dnl # Linux 5.14 change requires set_page_dirty() to be assigned
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dnl # in address_space_operations()
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dnl #
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AC_MSG_CHECKING([__set_page_dirty_nobuffers exists])
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ZFS_LINUX_TEST_RESULT([vfs_has_set_page_dirty_nobuffers], [
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_VFS_SET_PAGE_DIRTY_NOBUFFERS, 1,
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[__set_page_dirty_nobuffers 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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