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78 lines
2.1 KiB
Plaintext
78 lines
2.1 KiB
Plaintext
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dnl #
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dnl # Check for make_request_fn interface.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_MAKE_REQUEST_FN], [
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ZFS_LINUX_TEST_SRC([make_request_fn_int], [
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#include <linux/blkdev.h>
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int make_request(struct request_queue *q,
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struct bio *bio) { return (0); }
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],[
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blk_queue_make_request(NULL, &make_request);
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])
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ZFS_LINUX_TEST_SRC([make_request_fn_void], [
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#include <linux/blkdev.h>
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void make_request(struct request_queue *q,
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struct bio *bio) { return; }
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],[
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blk_queue_make_request(NULL, &make_request);
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])
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ZFS_LINUX_TEST_SRC([make_request_fn_blk_qc_t], [
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#include <linux/blkdev.h>
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blk_qc_t make_request(struct request_queue *q,
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struct bio *bio) { return (BLK_QC_T_NONE); }
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],[
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blk_queue_make_request(NULL, &make_request);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_MAKE_REQUEST_FN], [
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dnl #
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dnl # Legacy API
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dnl # make_request_fn returns int.
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dnl #
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AC_MSG_CHECKING([whether make_request_fn() returns int])
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ZFS_LINUX_TEST_RESULT([make_request_fn_int], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(MAKE_REQUEST_FN_RET, int,
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[make_request_fn() return type])
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AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_INT, 1,
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[Noting that make_request_fn() returns int])
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],[
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AC_MSG_RESULT(no)
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dnl #
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dnl # Linux 3.2 API Change
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dnl # make_request_fn returns void.
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dnl #
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AC_MSG_CHECKING([whether make_request_fn() returns void])
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ZFS_LINUX_TEST_RESULT([make_request_fn_void], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(MAKE_REQUEST_FN_RET, void,
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[make_request_fn() return type])
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AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_VOID, 1,
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[Noting that make_request_fn() returns void])
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],[
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AC_MSG_RESULT(no)
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dnl #
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dnl # Linux 4.4 API Change
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dnl # make_request_fn returns blk_qc_t.
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dnl #
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AC_MSG_CHECKING(
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[whether make_request_fn() returns blk_qc_t])
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ZFS_LINUX_TEST_RESULT([make_request_fn_blk_qc_t], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(MAKE_REQUEST_FN_RET, blk_qc_t,
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[make_request_fn() return type])
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AC_DEFINE(HAVE_MAKE_REQUEST_FN_RET_QC, 1,
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[Noting that make_request_fn() ]
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[returns blk_qc_t])
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],[
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ZFS_LINUX_TEST_ERROR([make_request_fn])
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])
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])
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])
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])
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