[PATCH] btrfs-progs: cmd_find_new: Sync fs before searching for modified files.

[chandan <chandan@linux.vnet.ibm.com>]

The sync makes sure that 'very recently' introduced delayed work is
accounted for in the output of 'btrfs subvolume find-new' command.

Signed-off-by: chandan <chandan@linux.vnet.ibm.com>
---
 cmds-subvolume.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/cmds-subvolume.c b/cmds-subvolume.c
index de246ab..8832303 100644
--- a/cmds-subvolume.c
+++ b/cmds-subvolume.c
@@ -786,6 +786,15 @@ static int cmd_find_new(int argc, char **argv)
 		fprintf(stderr, "ERROR: can't access '%s'\n", subvol);
 		return 1;
 	}
+
+	ret = ioctl(fd, BTRFS_IOC_SYNC);
+	if (ret < 0) {
+		fprintf(stderr, "ERROR: unable to fs-syncing '%s' - %s\n",
+			subvol, strerror(errno));
+		close_file_or_dir(fd, dirstream);
+		return 1;
+	}
+
 	ret = btrfs_list_find_updated_files(fd, 0, last_gen);
 	close_file_or_dir(fd, dirstream);
 	return !!ret;
-- 
1.8.3.1