hw/9pfs: Add file descriptor reclaim support

[M. Mohan Kumar <mohan@in.ibm.com> removed some unused variables]

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

1 files changed, 16 insertions, 3 deletions

diff --git a/hw/9pfs/cofile.c b/hw/9pfs/cofile.c
index e388146422..0caf1e3cee 100644
--- a/hw/9pfs/cofile.c
+++ b/hw/9pfs/cofile.c
@@ -58,6 +58,12 @@ int v9fs_co_open(V9fsState *s, V9fsFidState *fidp, int flags)
                 err = 0;
             }
         });
+    if (!err) {
+        total_open_fd++;
+        if (total_open_fd > open_fd_hw) {
+            v9fs_reclaim_fd(s);
+        }
+    }
     return err;
 }
 
@@ -79,15 +85,19 @@ int v9fs_co_open2(V9fsState *s, V9fsFidState *fidp, char *fullname, gid_t gid,
                 err = -errno;
             }
         });
+    if (!err) {
+        total_open_fd++;
+        if (total_open_fd > open_fd_hw) {
+            v9fs_reclaim_fd(s);
+        }
+    }
     return err;
 }
 
-int v9fs_co_close(V9fsState *s, V9fsFidState *fidp)
+int v9fs_co_close(V9fsState *s, int fd)
 {
-    int fd;
     int err;
 
-    fd = fidp->fs.fd;
     v9fs_co_run_in_worker(
         {
             err = s->ops->close(&s->ctx, fd);
@@ -95,6 +105,9 @@ int v9fs_co_close(V9fsState *s, V9fsFidState *fidp)
                 err = -errno;
             }
         });
+    if (!err) {
+        total_open_fd--;
+    }
     return err;
 }