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25 lines
741 B
Plaintext
25 lines
741 B
Plaintext
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dnl #
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dnl # 4.2 API change
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dnl # This kernel retired the nameidata structure which forced the
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dnl # restructuring of the follow_link() prototype and how it is called.
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dnl # We check for the new interface rather than detecting the old one.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_FOLLOW_LINK], [
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AC_MSG_CHECKING([whether iops->follow_link() passes nameidata])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/fs.h>
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const char *follow_link(struct dentry *de, void **cookie)
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{ return "symlink"; }
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static struct inode_operations iops __attribute__ ((unused)) = {
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.follow_link = follow_link,
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};
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],[
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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_FOLLOW_LINK_NAMEIDATA, 1,
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[iops->follow_link() nameidata])
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])
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])
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