DHT rename: Recreate linkfile after unlink

This is done, so that there is no gfid mismatch. Unlink the older
linkfile if it exists, and recreate it with the correct gfid.

Also removed unused rename related code.

Change-Id: Ice0cdff51db786dafb1a019f7642c7d000e8c5f3
BUG: 2522
Reviewed-on: http://review.gluster.com/142
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@gluster.com>

1 files changed, 0 insertions, 140 deletions

diff --git a/xlators/cluster/dht/src/dht-linkfile.c b/xlators/cluster/dht/src/dht-linkfile.c
index e936f3119a6..89fc32725ec 100644
--- a/xlators/cluster/dht/src/dht-linkfile.c
+++ b/xlators/cluster/dht/src/dht-linkfile.c
@@ -189,143 +189,3 @@ dht_linkfile_subvol (xlator_t *this, inode_t *inode, struct iatt *stbuf,
 out:
         return subvol;
 }
-
-int
-dht_recreate_linkfile_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                         int32_t op_ret, int32_t op_errno,
-                         struct iatt *preparent, struct iatt *postparent)
-{
-        dht_local_t   *local            = NULL;
-        xlator_t      *subvol           = NULL;
-        xlator_t      *src_cached       = NULL;
-        xlator_t      *dst_hashed       = NULL;
-        call_frame_t  *prev             = NULL;
-        loc_t         *loc              = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, err);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, err);
-
-        local = frame->local;
-        prev = cookie;
-        subvol = prev->this;
-        src_cached = local->src_cached;
-        dst_hashed = local->dst_hashed;
-        loc = &local->loc;
-
-        if (!src_cached || !dst_hashed) {
-                gf_log (this->name, GF_LOG_ERROR, "src_cached or dst_hashed"
-                        "subvol is null");
-                local->op_ret = -1;
-                local->op_errno = EINVAL;
-                goto out;
-        }
-
-        if (op_ret == -1) {
-                gf_log (this->name, GF_LOG_ERROR,
-                        "unlinking linkfile %s on %s failed (%s)",
-                        loc->path, subvol->name, strerror (op_errno));
-                local->op_ret = op_ret;
-                local->op_errno = op_errno;
-                goto out;
-        }
-        gf_log (this->name, GF_LOG_DEBUG, "unlink successfull. Proceeding with"
-                " creation of link file %s", loc->path);
-        dht_linkfile_create (frame, local->linkfile.linkfile_cbk,
-                             src_cached, dst_hashed, loc);
-
-        return 0;
-out:
-        local->linkfile.linkfile_cbk (frame, NULL, frame->this, -1, EINVAL,
-                                      local->loc.inode, NULL, NULL, NULL);
-err:
-        return -1;
-}
-
-int
-dht_linkfile_recreate_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
-                int op_ret, int op_errno,
-                inode_t *inode, struct iatt *stbuf, dict_t *xattr,
-                struct iatt *postparent)
-{
-        dht_local_t  *local         = NULL;
-        xlator_t     *src_cached    = NULL;
-        xlator_t     *dst_hashed    = NULL;
-        loc_t        *loc           = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, err);
-        GF_VALIDATE_OR_GOTO ("dht", this, err);
-        GF_VALIDATE_OR_GOTO ("dht", frame->local, err);
-
-        local = frame->local;
-        loc = &local->loc;
-
-        src_cached = local->src_cached;
-        dst_hashed = local->dst_hashed;
-
-        if (!src_cached || !dst_hashed) {
-                gf_log (this->name, GF_LOG_ERROR, "src_cached or dst_hashed"
-                        " or hashed_subvol is null");
-                local->op_ret = -1;
-                local->op_errno = EINVAL;
-                goto out;
-        }
-
-        /* if link_file exists, remove it, else create it*/
-        if (!op_ret) {
-               if (!check_is_linkfile (inode, stbuf, xattr))
-                       goto out;
-               gf_log (this->name, GF_LOG_DEBUG, "link file exists."
-                        " Calling unlink on %s", loc->path);
-                STACK_WIND (frame, dht_recreate_linkfile_unlink_cbk,
-                            dst_hashed, dst_hashed->fops->unlink,
-                            loc);
-
-        } else if (op_errno == ENOENT) {
-                gf_log (this->name, GF_LOG_DEBUG, "link file does not exist."
-                        " Proceeding to creation of linkfile %s", loc->path);
-                dht_linkfile_create (frame, local->linkfile.linkfile_cbk,
-                                     src_cached, dst_hashed, loc);
-        } else {
-                gf_log (this->name, GF_LOG_ERROR, "returned error %s",
-                        strerror(op_errno));
-                local->op_ret = op_ret;
-                local->op_errno = op_errno;
-                goto out;
-        }
-
-        return 0;
-out:
-        local->linkfile.linkfile_cbk (frame, NULL, frame->this, -1, EINVAL,
-                                      loc->inode, NULL, NULL, NULL);
-err:
-        return -1;
-}
-
-int
-dht_linkfile_recreate (call_frame_t *frame, fop_mknod_cbk_t linkfile_cbk,
-                       xlator_t *tovol, xlator_t *fromvol, loc_t *loc)
-{
-        dht_local_t     *local          = NULL;
-
-        GF_VALIDATE_OR_GOTO ("dht", frame, out);
-        GF_VALIDATE_OR_GOTO ("dht", loc, out);
-        GF_VALIDATE_OR_GOTO ("dht", tovol, out);
-        GF_VALIDATE_OR_GOTO ("dht", fromvol, out);
-
-        local = frame->local;
-        local->linkfile.linkfile_cbk = linkfile_cbk;
-        local->linkfile.srcvol = tovol;
-        loc_copy (&local->linkfile.loc, loc);
-
-        STACK_WIND (frame, dht_linkfile_recreate_cbk,
-                    fromvol, fromvol->fops->lookup, loc, NULL);
-
-        return 0;
-
-out:
-        linkfile_cbk (frame, NULL, frame->this, -1, EINVAL, loc->inode, NULL,
-                      NULL, NULL);
-
-        return -1;
-}