cluster/dht: Fix dht_setxattr to follow files under migration

If a file is under migration, any xattrs created on it
are lost post migration of the file. This is because
the xattrs are set only on the cached subvol of the source
and as the source is under migration, it becomes a linkto file
post migration.

Change-Id: Ib8e233b519cf954e7723c6e26b38fa8f9b8c85c0
BUG: 1193636
Signed-off-by: Nithya Balachandran <nbalacha@redhat.com>
Reviewed-on: http://review.gluster.org/10212
Tested-by: NetBSD Build System
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Tested-by: Raghavendra G <rgowdapp@redhat.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/tests/bugs/distribute/bug-1193636.c b/tests/bugs/distribute/bug-1193636.c
new file mode 100644
index 00000000000..eae90783f8e
--- /dev/null
+++ b/tests/bugs/distribute/bug-1193636.c
@@ -0,0 +1,70 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <attr/xattr.h>
+#include <fcntl.h>
+#include <string.h>
+
+
+#define MY_XATTR_NAME   "user.ftest"
+#define MY_XATTR_VAL    "ftestval"
+
+
+void usage (void)
+{
+        printf ("Usage : bug-1193636 <filename> <xattr_name> <op>\n");
+        printf ("   op : 0 - set, 1 - remove\n");
+}
+
+
+int main (int argc, char **argv)
+{
+        int fd;
+        int err = 0;
+        char *xattr_name = NULL;
+        int op = 0;
+
+        if (argc != 4) {
+                usage ();
+                exit (1);
+        }
+
+        op = atoi (argv[3]);
+
+        if ((op != 0) && (op != 1)) {
+                printf ("Invalid operation specified.\n");
+                usage ();
+                exit (1);
+        }
+
+        xattr_name = argv[2];
+
+        fd = open(argv[1], O_RDWR);
+        if (fd == -1) {
+                printf ("Failed to open file %s\n", argv[1]);
+                exit (1);
+        }
+
+        if (!op) {
+                err = fsetxattr (fd, xattr_name, MY_XATTR_VAL,
+                                 strlen (MY_XATTR_VAL) + 1, XATTR_CREATE);
+
+                if (err) {
+                        printf ("Failed to set xattr %s: %m\n", xattr_name);
+                        exit (1);
+                }
+
+        } else {
+                err = fremovexattr (fd, xattr_name);
+
+                if (err) {
+                        printf ("Failed to remove xattr %s: %m\n", xattr_name);
+                        exit (1);
+                }
+        }
+
+        close (fd);
+
+        return 0;
+}
+