47 lines
1.2 KiB
Text
47 lines
1.2 KiB
Text
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dnl #
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dnl # 4.3 API change
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dnl # Error argument dropped from bio_endio in favor of newly introduced
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dnl # bio->bi_error. This also replaces bio->bi_flags value BIO_UPTODATE.
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dnl # Introduced by torvalds/linux@4246a0b63bd8f56a1469b12eafeb875b1041a451
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dnl # ("block: add a bi_error field to struct bio").
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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 1 arg])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/bio.h>
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void wanted_end_io(struct bio *bio) { return; }
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bio_end_io_t *end_io __attribute__ ((unused)) = wanted_end_io;
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],[
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_1ARG_BIO_END_IO_T, 1,
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[bio_end_io_t wants 1 arg])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 4.13 API change
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dnl # The bio->bi_error field was replaced with bio->bi_status which is an
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dnl # enum which describes all possible error types.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BIO_BI_STATUS], [
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AC_MSG_CHECKING([whether bio->bi_status exists])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/bio.h>
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],[
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struct bio bio __attribute__ ((unused));
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blk_status_t status __attribute__ ((unused)) = BLK_STS_OK;
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bio.bi_status = status;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BIO_BI_STATUS, 1, [bio->bi_status 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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