D47936.diff
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	diff --git a/sys/fs/msdosfs/msdosfs_vnops.c b/sys/fs/msdosfs/msdosfs_vnops.c
	--- a/sys/fs/msdosfs/msdosfs_vnops.c
	+++ b/sys/fs/msdosfs/msdosfs_vnops.c
	@@ -1962,6 +1962,8 @@
	{
	struct denode *dep;
	struct defid *defhp;
	+ _Static_assert(sizeof(struct defid) <= sizeof(struct fid),
	+ "struct defid cannot be larger than struct fid");

	dep = VTODE(ap->a_vp);
	defhp = (struct defid *)ap->a_fhp;
	diff --git a/sys/fs/tmpfs/tmpfs_vnops.c b/sys/fs/tmpfs/tmpfs_vnops.c
	--- a/sys/fs/tmpfs/tmpfs_vnops.c
	+++ b/sys/fs/tmpfs/tmpfs_vnops.c
	@@ -1709,6 +1709,8 @@
	struct tmpfs_fid_data tfd;
	struct tmpfs_node *node;
	struct fid *fhp;
	+ _Static_assert(sizeof(struct tmpfs_fid_data) <= sizeof(struct fid),
	+ "struct tmpfs_fid_data cannot be larger than struct fid");

	node = VP_TO_TMPFS_NODE(ap->a_vp);
	fhp = ap->a_fhp;
	diff --git a/sys/fs/udf/udf_vnops.c b/sys/fs/udf/udf_vnops.c
	--- a/sys/fs/udf/udf_vnops.c
	+++ b/sys/fs/udf/udf_vnops.c
	@@ -1274,6 +1274,8 @@
	{
	struct udf_node *node;
	struct ifid *ifhp;
	+ _Static_assert(sizeof(struct ifid) <= sizeof(struct fid),
	+ "struct ifid cannot be larger than struct fid");

	node = VTON(a->a_vp);
	ifhp = (struct ifid *)a->a_fhp;
	diff --git a/sys/ufs/ffs/ffs_vnops.c b/sys/ufs/ffs/ffs_vnops.c
	--- a/sys/ufs/ffs/ffs_vnops.c
	+++ b/sys/ufs/ffs/ffs_vnops.c
	@@ -1919,6 +1919,8 @@
	{
	struct inode *ip;
	struct ufid *ufhp;
	+ _Static_assert(sizeof(struct ufid) <= sizeof(struct fid),
	+ "struct ufid cannot be larger than struct fid");

	ip = VTOI(ap->a_vp);
	ufhp = (struct ufid *)ap->a_fhp;