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a1d9543a39
Linux kernel commit torvalds/linux@db2a144 changed the return type of block_device_operations->release() to void. Detect the expected prototype and defined our callout accordingly. Signed-off-by: Chris Dunlop <chris@onthe.net.au> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1494
30 lines
761 B
Plaintext
30 lines
761 B
Plaintext
dnl #
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dnl # 3.10.x API change
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [
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AC_MSG_CHECKING([whether block_device_operations.release is void])
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tmp_flags="$EXTRA_KCFLAGS"
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EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/blkdev.h>
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void blk_release(struct gendisk *g, fmode_t mode) { return; }
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static const struct block_device_operations
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bops __attribute__ ((unused)) = {
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.open = NULL,
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.release = blk_release,
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.ioctl = NULL,
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.compat_ioctl = NULL,
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};
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],[
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],[
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AC_MSG_RESULT(void)
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AC_DEFINE(HAVE_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID, 1,
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[struct block_device_operations.release returns void])
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],[
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AC_MSG_RESULT(int)
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])
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EXTRA_KCFLAGS="$tmp_flags"
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])
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