commit 6fd921ae03a0fa17acfe118753ecd76d25f02e10
author Jeff Brown <jeffbrown@google.com> Fri May 25 15:01:21 2012 -0700
committer Jeff Brown <jeffbrown@google.com> Mon Jun 04 13:13:57 2012 -0700
tree 6079693a1e42655ce7ce8aa0896503442591bfe8
parent 847158476c1b7662eeec77808d8ecdbb329e6f28

Implement FUSE_FSYNC request.

This request is needed for application correctness, without which
data corruption may result.

Bug: 6488845
Change-Id: I3d676c2e40f6e6b37d5d270c7cb40f1bf8c1fa47

sdcard/sdcard.c

diff --git a/sdcard/sdcard.c b/sdcard/sdcard.c
index 4fff942..2b78482 100644
--- a/sdcard/sdcard.c
+++ b/sdcard/sdcard.c
@@ -853,7 +853,21 @@
         return;
     }
 
-//    case FUSE_FSYNC:
+    case FUSE_FSYNC: {
+        const struct fuse_fsync_in *req = data;
+        int is_data_sync = req->fsync_flags & 1;
+        struct handle *h = id_to_ptr(req->fh);
+        int res;
+        TRACE("FSYNC %p(%d) is_data_sync=%d\n", h, h->fd, is_data_sync);
+        res = is_data_sync ? fdatasync(h->fd) : fsync(h->fd);
+        if (res < 0) {
+            fuse_status(fuse, hdr->unique, -errno);
+            return;
+        }
+        fuse_status(fuse, hdr->unique, 0);
+        return;
+    }
+
 //    case FUSE_SETXATTR:
 //    case FUSE_GETXATTR:
 //    case FUSE_LISTXATTR: