[Minios-devel] [UNIKRAFT PATCH] lib/vfscore: Introduce `vfscore_put_file`

[Simon Kuenzer <simon.kuenzer@xxxxxxxxx>]

As counterpart to `vfscore_get_file`, we export `vfscore_put_file`
as a way to release the refcount on a file.

Signed-off-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
---
 lib/vfscore/exportsyms.uk          | 1 +
 lib/vfscore/fd.c                   | 5 +++++
 lib/vfscore/include/vfscore/file.h | 1 +
 3 files changed, 7 insertions(+)

diff --git a/lib/vfscore/exportsyms.uk b/lib/vfscore/exportsyms.uk
index 10fed806..e2afafa7 100644
--- a/lib/vfscore/exportsyms.uk
+++ b/lib/vfscore/exportsyms.uk
@@ -2,6 +2,7 @@ vfscore_alloc_fd
 vfscore_put_fd
 vfscore_install_fd
 vfscore_get_file
+vfscore_put_file
 close
 write
 read
diff --git a/lib/vfscore/fd.c b/lib/vfscore/fd.c
index 5abed969..111b0229 100644
--- a/lib/vfscore/fd.c
+++ b/lib/vfscore/fd.c
@@ -133,6 +133,11 @@ exit:
        return ret;
 }
 
+void vfscore_put_file(struct vfscore_file *file)
+{
+       fdrop(file);
+}
+
 int fget(int fd, struct vfscore_file **out_fp)
 {
        int ret = 0;
diff --git a/lib/vfscore/include/vfscore/file.h 
b/lib/vfscore/include/vfscore/file.h
index 7f45ca78..80845b79 100644
--- a/lib/vfscore/include/vfscore/file.h
+++ b/lib/vfscore/include/vfscore/file.h
@@ -65,6 +65,7 @@ int vfscore_alloc_fd(void);
 void vfscore_put_fd(int fd);
 int vfscore_install_fd(int fd, struct vfscore_file *file);
 struct vfscore_file *vfscore_get_file(int fd);
+void vfscore_put_file(struct vfscore_file *file);
 
 /*
  * File descriptors reference count
-- 
2.11.0


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