Author: mjg
Date: Fri Jan 3 22:10:11 2020
New Revision: 356335
URL: https://svnweb.freebsd.org/changeset/base/356335
Log:
vfs: add VOP_UNLOCK_FLAGS
The flags argument from VOP_UNLOCK is about to be removed and some
filesystems unlock the interlock as a convienience with it.
Add a helper to retain the behavior for the few cases it is needed.
Modified:
head/sys/sys/vnode.h
Modified: head/sys/sys/vnode.h
==============================================================================
--- head/sys/sys/vnode.h Fri Jan 3 21:40:32 2020 (r356334)
+++ head/sys/sys/vnode.h Fri Jan 3 22:10:11 2020 (r356335)
@@ -955,6 +955,21 @@ int vn_chown(struct file *fp, uid_t uid, gid_t gid, st
void vn_fsid(struct vnode *vp, struct vattr *va);
+#define VOP_UNLOCK_FLAGS(vp, flags) ({ \
+ struct vnode *_vp = (vp); \
+ int _flags = (flags); \
+ int _error; \
+ \
+ CTASSERT(__builtin_constant_p(flags) ? \
+ (flags & ~(LK_INTERLOCK | LK_RELEASE)) == 0 : 1); \
+ if ((_flags & ~(LK_INTERLOCK | LK_RELEASE)) != 0) \
+ panic("%s: unsupported flags %x\n", __func__, flags); \
+ _error = VOP_UNLOCK(_vp, 0); \
+ if (_flags & LK_INTERLOCK) \
+ VI_UNLOCK(_vp);
\
+ _error;
\
+})
+
#include <sys/kernel.h>
#define VFS_VOP_VECTOR_REGISTER(vnodeops) \
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