5547c2f1bf
Update the code to use the bdi_setup_and_register() helper to simplify the bdi integration code. The updated code now just registers the bdi during mount and destroys it during unmount. The only complication is that for 2.6.32 - 2.6.33 kernels the helper wasn't available so in these cases the zfs code must provide it. Luckily the bdi_setup_and_register() function is trivial. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #367
16 lines
512 B
Plaintext
16 lines
512 B
Plaintext
dnl #
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dnl # 2.6.34 API change
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dnl # The bdi_setup_and_register() helper function is avilable and
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dnl # exported by the kernel. This is a trivial helper function but
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dnl # using it significantly simplifies the code surrounding setting
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dnl # up and tearing down the bdi structure.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BDI_SETUP_AND_REGISTER], [
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ZFS_CHECK_SYMBOL_EXPORT(
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[bdi_setup_and_register],
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[mm/backing-dev.c],
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[AC_DEFINE(HAVE_BDI_SETUP_AND_REGISTER, 1,
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[bdi_setup_and_register() is available])],
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[])
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])
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