From 85a389cfced2c299faa37b6f930c2cd0ca8c72b9 Mon Sep 17 00:00:00 2001
From: N Balachandran <nbalacha@redhat.com>
Date: Fri, 14 Jul 2017 15:18:19 +0530
Subject: cluster/dht: Add migration checks to dht_(f)xattrop

The dht_(f)xattrop implementation did not implement
migration phase1/phase2 checks which could cause issues
with rebalance on sharded volumes.
This does not solve the issue where fops may reach the target
out of order.

Change-Id: I2416fc35115e60659e35b4b717fd51f20746586c
BUG: 1471031
Signed-off-by: N Balachandran <nbalacha@redhat.com>
---
 xlators/storage/posix/src/posix-helpers.c      | 32 ++++++++++++++++++++++++++
 xlators/storage/posix/src/posix-inode-fd-ops.c |  1 +
 xlators/storage/posix/src/posix.h              |  3 +++
 3 files changed, 36 insertions(+)

(limited to 'xlators/storage')

diff --git a/xlators/storage/posix/src/posix-helpers.c b/xlators/storage/posix/src/posix-helpers.c
index 525f65f7eba..39d29f413a8 100644
--- a/xlators/storage/posix/src/posix-helpers.c
+++ b/xlators/storage/posix/src/posix-helpers.c
@@ -153,6 +153,38 @@ out:
         return ret;
 }
 
+
+int32_t
+posix_set_mode_in_dict (dict_t *in_dict, dict_t *out_dict,
+                        struct iatt *in_stbuf)
+{
+        int ret             = -1;
+        mode_t mode         = 0;
+
+        if ((!in_dict) || (!in_stbuf) || (!out_dict)) {
+                goto out;
+        }
+
+        /* We need this only for files */
+        if (!(IA_ISREG (in_stbuf->ia_type))) {
+                ret = 0;
+                goto out;
+        }
+
+        /* Nobody asked for this */
+        if (!dict_get (in_dict, DHT_MODE_IN_XDATA_KEY)) {
+                ret = 0;
+                goto out;
+        }
+        mode = st_mode_from_ia (in_stbuf->ia_prot, in_stbuf->ia_type);
+
+        ret = dict_set_int32 (out_dict, DHT_MODE_IN_XDATA_KEY, mode);
+
+out:
+        return ret;
+}
+
+
 static gf_boolean_t
 posix_xattr_ignorable (char *key)
 {
diff --git a/xlators/storage/posix/src/posix-inode-fd-ops.c b/xlators/storage/posix/src/posix-inode-fd-ops.c
index 2a3c7a2b025..8cb7630c599 100644
--- a/xlators/storage/posix/src/posix-inode-fd-ops.c
+++ b/xlators/storage/posix/src/posix-inode-fd-ops.c
@@ -4143,6 +4143,7 @@ do_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd,
                 op_ret = -1;
                 op_errno = ENOMEM;
         }
+        posix_set_mode_in_dict (xdata, xdata_rsp, &stbuf);
 out:
 
         STACK_UNWIND_STRICT (xattrop, frame, op_ret, op_errno, xattr_rsp,
diff --git a/xlators/storage/posix/src/posix.h b/xlators/storage/posix/src/posix.h
index f9ab3ec9e75..c4c28d59977 100644
--- a/xlators/storage/posix/src/posix.h
+++ b/xlators/storage/posix/src/posix.h
@@ -610,4 +610,7 @@ int32_t
 posix_rchecksum (call_frame_t *frame, xlator_t *this,
                  fd_t *fd, off_t offset, int32_t len, dict_t *xdata);
 
+int32_t
+posix_set_mode_in_dict (dict_t *in_dict, dict_t *out_dict,
+                        struct iatt *in_stbuf);
 #endif /* _POSIX_H */
-- 
cgit