e02aaf17f1
Ubuntu added support for checking inode permissions to lookup_bdev() in kernel commit 193fb6a2c94fab8eb8ce70a5da4d21c7d4023bee (merged in 4.4.0-6.21). Upstream bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1636517 This patch adds a test for Ubuntu's variant of lookup_bdev() to configure and calls the function in the correct way. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Hajo Möller <dasjoe@gmail.com> Closes #5336
29 lines
783 B
Plaintext
29 lines
783 B
Plaintext
dnl #
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dnl # 2.6.27, lookup_bdev() was exported.
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dnl # 4.4.0-6.21 - x.y on Ubuntu, lookup_bdev() takes 2 arguments.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_BDEV],
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[AC_MSG_CHECKING([whether lookup_bdev() wants 1 arg])
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ZFS_LINUX_TRY_COMPILE_SYMBOL([
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#include <linux/fs.h>
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], [
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lookup_bdev(NULL);
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], [lookup_bdev], [fs/block_dev.c], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_1ARG_LOOKUP_BDEV, 1, [lookup_bdev() wants 1 arg])
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], [
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether lookup_bdev() wants 2 args])
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ZFS_LINUX_TRY_COMPILE_SYMBOL([
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#include <linux/fs.h>
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], [
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lookup_bdev(NULL, FMODE_READ);
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], [lookup_bdev], [fs/block_dev.c], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_2ARGS_LOOKUP_BDEV, 1,
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[lookup_bdev() wants 2 args])
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], [
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AC_MSG_RESULT(no)
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])
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])
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]) |