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38 lines
928 B
Plaintext
38 lines
928 B
Plaintext
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dnl #
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dnl # 2.6.31 API change
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dnl # In 2.6.29 kernels blk_end_request() was a GPL-only symbol, this was
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dnl # changed in 2.6.31 so it may be used by non-GPL modules.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BLK_END_REQUEST], [
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AC_MSG_CHECKING([whether blk_end_request() is available])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/blkdev.h>
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],[
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struct request *req = NULL;
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(void) blk_end_request(req, 0, 0);
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_END_REQUEST, 1,
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[blk_end_request() is available])
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],[
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AC_MSG_RESULT(no)
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])
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AC_MSG_CHECKING([whether blk_end_request() is GPL-only])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/module.h>
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#include <linux/blkdev.h>
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MODULE_LICENSE("CDDL");
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],[
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struct request *req = NULL;
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(void) blk_end_request(req, 0, 0);
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],[
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AC_MSG_RESULT(no)
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_BLK_END_REQUEST_GPL_ONLY, 1,
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[blk_end_request() is GPL-only])
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])
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])
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