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From 1cd16553d436fa703f5e18d71c35108d0e179e8b Mon Sep 17 00:00:00 2001
From: nik-redhat <nladha@redhat.com>
Date: Thu, 9 Apr 2020 11:36:34 +0530
Subject: [PATCH 600/610] dht xlator: integer handling issue

Issue: The ret value is passed to the function
instead of the proper errno value

Fix: Passing the errno generated to
the log function

CID: 1415824 : Improper use of negative value
CID: 1420205 : Improper use of negative value
>Change-Id: Iaa7407ebd03eda46a2c027695e6bf0f598b371b2
>Updates: #1060
>Signed-off-by: nik-redhat <nladha@redhat.com>

Upstream link: https://review.gluster.org/c/glusterfs/+/24314
BUG: 1997447

Change-Id: Ibb7f432dbcc9ffd8dff6be6f984a6705894d6bef
Signed-off-by: nik-redhat <nladha@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/c/rhs-glusterfs/+/280086
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
---
 xlators/cluster/dht/src/dht-common.c   | 12 ++++++++----
 xlators/cluster/dht/src/dht-common.h   |  2 +-
 xlators/cluster/dht/src/dht-helper.c   |  9 ++++++---
 xlators/cluster/dht/src/dht-selfheal.c |  8 +++++---
 4 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/xlators/cluster/dht/src/dht-common.c b/xlators/cluster/dht/src/dht-common.c
index e6a16ff..5eaaa1e 100644
--- a/xlators/cluster/dht/src/dht-common.c
+++ b/xlators/cluster/dht/src/dht-common.c
@@ -672,13 +672,14 @@ dht_discover_complete(xlator_t *this, call_frame_t *discover_frame)
 
         if (local->need_xattr_heal && !heal_path) {
             local->need_xattr_heal = 0;
-            ret = dht_dir_xattr_heal(this, local);
-            if (ret)
-                gf_msg(this->name, GF_LOG_ERROR, ret,
+            ret = dht_dir_xattr_heal(this, local, &op_errno);
+            if (ret) {
+                gf_msg(this->name, GF_LOG_ERROR, op_errno,
                        DHT_MSG_DIR_XATTR_HEAL_FAILED,
                        "xattr heal failed for "
                        "directory  gfid is %s ",
                        gfid_local);
+            }
         }
     }
 
@@ -1205,7 +1206,7 @@ dht_dict_get_array(dict_t *dict, char *key, int32_t value[], int32_t size,
    to non hashed subvol
 */
 int
-dht_dir_xattr_heal(xlator_t *this, dht_local_t *local)
+dht_dir_xattr_heal(xlator_t *this, dht_local_t *local, int *op_errno)
 {
     dht_local_t *copy_local = NULL;
     call_frame_t *copy = NULL;
@@ -1217,6 +1218,7 @@ dht_dir_xattr_heal(xlator_t *this, dht_local_t *local)
                "No gfid exists for path %s "
                "so healing xattr is not possible",
                local->loc.path);
+        *op_errno = EIO;
         goto out;
     }
 
@@ -1230,6 +1232,7 @@ dht_dir_xattr_heal(xlator_t *this, dht_local_t *local)
                    "Memory allocation failed "
                    "for path %s gfid %s ",
                    local->loc.path, gfid_local);
+            *op_errno = ENOMEM;
             DHT_STACK_DESTROY(copy);
         } else {
             copy_local->stbuf = local->stbuf;
@@ -1244,6 +1247,7 @@ dht_dir_xattr_heal(xlator_t *this, dht_local_t *local)
                        "Synctask creation failed to heal xattr "
                        "for path %s gfid %s ",
                        local->loc.path, gfid_local);
+                *op_errno = ENOMEM;
                 DHT_STACK_DESTROY(copy);
             }
         }
diff --git a/xlators/cluster/dht/src/dht-common.h b/xlators/cluster/dht/src/dht-common.h
index b856c68..1cb1c0c 100644
--- a/xlators/cluster/dht/src/dht-common.h
+++ b/xlators/cluster/dht/src/dht-common.h
@@ -1493,7 +1493,7 @@ dht_dir_set_heal_xattr(xlator_t *this, dht_local_t *local, dict_t *dst,
                        dict_t *src, int *uret, int *uflag);
 
 int
-dht_dir_xattr_heal(xlator_t *this, dht_local_t *local);
+dht_dir_xattr_heal(xlator_t *this, dht_local_t *local, int *op_errno);
 
 int32_t
 dht_dict_get_array(dict_t *dict, char *key, int32_t value[], int32_t size,
diff --git a/xlators/cluster/dht/src/dht-helper.c b/xlators/cluster/dht/src/dht-helper.c
index 4c3940a..d3444b3 100644
--- a/xlators/cluster/dht/src/dht-helper.c
+++ b/xlators/cluster/dht/src/dht-helper.c
@@ -2105,6 +2105,7 @@ dht_heal_full_path_done(int op_ret, call_frame_t *heal_frame, void *data)
     dht_local_t *local = NULL;
     xlator_t *this = NULL;
     int ret = -1;
+    int op_errno = 0;
 
     local = heal_frame->local;
     main_frame = local->main_frame;
@@ -2114,10 +2115,12 @@ dht_heal_full_path_done(int op_ret, call_frame_t *heal_frame, void *data)
     dht_set_fixed_dir_stat(&local->postparent);
     if (local->need_xattr_heal) {
         local->need_xattr_heal = 0;
-        ret = dht_dir_xattr_heal(this, local);
-        if (ret)
-            gf_msg(this->name, GF_LOG_ERROR, ret, DHT_MSG_DIR_XATTR_HEAL_FAILED,
+        ret = dht_dir_xattr_heal(this, local, &op_errno);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, op_errno,
+                   DHT_MSG_DIR_XATTR_HEAL_FAILED,
                    "xattr heal failed for directory  %s ", local->loc.path);
+        }
     }
 
     DHT_STACK_UNWIND(lookup, main_frame, 0, 0, local->inode, &local->stbuf,
diff --git a/xlators/cluster/dht/src/dht-selfheal.c b/xlators/cluster/dht/src/dht-selfheal.c
index 8af7301..2da9817 100644
--- a/xlators/cluster/dht/src/dht-selfheal.c
+++ b/xlators/cluster/dht/src/dht-selfheal.c
@@ -1471,6 +1471,7 @@ dht_selfheal_dir_mkdir(call_frame_t *frame, loc_t *loc, dht_layout_t *layout,
 {
     int missing_dirs = 0;
     int i = 0;
+    int op_errno = 0;
     int ret = -1;
     dht_local_t *local = NULL;
     xlator_t *this = NULL;
@@ -1493,13 +1494,14 @@ dht_selfheal_dir_mkdir(call_frame_t *frame, loc_t *loc, dht_layout_t *layout,
         if (!__is_root_gfid(local->stbuf.ia_gfid)) {
             if (local->need_xattr_heal) {
                 local->need_xattr_heal = 0;
-                ret = dht_dir_xattr_heal(this, local);
-                if (ret)
-                    gf_msg(this->name, GF_LOG_ERROR, ret,
+                ret = dht_dir_xattr_heal(this, local, &op_errno);
+                if (ret) {
+                    gf_msg(this->name, GF_LOG_ERROR, op_errno,
                            DHT_MSG_DIR_XATTR_HEAL_FAILED,
                            "%s:xattr heal failed for "
                            "directory (gfid = %s)",
                            local->loc.path, local->gfid);
+                }
             } else {
                 if (!gf_uuid_is_null(local->gfid))
                     gf_uuid_copy(loc->gfid, local->gfid);
-- 
1.8.3.1