30 lines
896 B
Plaintext
30 lines
896 B
Plaintext
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dnl #
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dnl # 2.6.24 API change
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dnl # Size argument dropped from bio_endio and bi_end_io, because the
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dnl # bi_end_io is only called once now when the request is complete.
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dnl # There is no longer any need for a size argument. This also means
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dnl # that partial IO's are no longer possibe and the end_io callback
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dnl # should not check bi->bi_size. Finally, the return type was updated
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dnl # to void.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BIO_END_IO_T_ARGS], [
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AC_MSG_CHECKING([whether bio_end_io_t wants 2 args])
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tmp_flags="$EXTRA_KCFLAGS"
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EXTRA_KCFLAGS="-Werror"
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/bio.h>
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],[
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void (*wanted_end_io)(struct bio *, int) = NULL;
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bio_end_io_t *local_end_io;
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local_end_io = wanted_end_io;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_2ARGS_BIO_END_IO_T, 1,
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[bio_end_io_t wants 2 args])
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],[
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AC_MSG_RESULT(no)
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])
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EXTRA_KCFLAGS="$tmp_flags"
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])
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