multiple files: calloc -> malloc

xlators/cluster/stripe/src/stripe-helpers.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible

xlators/cluster/dht/src/tier.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
xlators/cluster/dht/src/dht-layout.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
xlators/cluster/dht/src/dht-helper.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
xlators/cluster/dht/src/dht-common.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
xlators/cluster/afr/src/afr.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
xlators/cluster/afr/src/afr-inode-read.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
tests/bugs/replicate/bug-1250170-fsync.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
tests/basic/gfapi/gfapi-async-calls-test.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
tests/basic/ec/ec-fast-fgetxattr.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
rpc/xdr/src/glusterfs3.h: Move to GF_MALLOC() instead of GF_CALLOC() when possible
rpc/rpc-transport/socket/src/socket.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
rpc/rpc-lib/src/rpc-clnt.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
extras/geo-rep/gsync-sync-gfid.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
cli/src/cli-xml-output.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
cli/src/cli-rpc-ops.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
cli/src/cli-cmd-volume.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
cli/src/cli-cmd-system.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
cli/src/cli-cmd-snapshot.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
cli/src/cli-cmd-peer.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible
cli/src/cli-cmd-global.c: Move to GF_MALLOC() instead of GF_CALLOC() when possible

It doesn't make sense to calloc (allocate and clear) memory
when the code right away fills that memory with data.
It may be optimized by the compiler, or have a microscopic
performance improvement.

In some cases, also changed allocation size to be sizeof some
struct or type instead of a pointer - easier to read.
In some cases, removed redundant strlen() calls by saving the result
into a variable.

1. Only done for the straightforward cases. There's room for improvement.
2. Please review carefully, especially for string allocation, with the
terminating NULL string.

Only compile-tested!

updates: bz#1193929
Original-Author: Yaniv Kaul <ykaul@redhat.com>
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
Signed-off-by: Amar Tumballi <amarts@redhat.com>

Change-Id: I16274dca4078a1d06ae09a0daf027d734b631ac2

1 files changed, 5 insertions, 3 deletions

diff --git a/rpc/xdr/src/glusterfs3.h b/rpc/xdr/src/glusterfs3.h
index 7afa6dcf0ee..4ffad3c5b45 100644
--- a/rpc/xdr/src/glusterfs3.h
+++ b/rpc/xdr/src/glusterfs3.h
@@ -812,7 +812,7 @@ xdr_to_dict (gfx_dict *dict, dict_t **to)
                                     xpair->value.gfx_value_u.value_dbl);
                         break;
                 case GF_DATA_TYPE_STR:
-                        value = GF_CALLOC (1, xpair->value.gfx_value_u.val_string.val_string_len + 1,
+                        value = GF_MALLOC (xpair->value.gfx_value_u.val_string.val_string_len + 1,
                                            gf_common_mt_char);
                         if (!value) {
                                 errno = ENOMEM;
@@ -820,11 +820,12 @@ xdr_to_dict (gfx_dict *dict, dict_t **to)
                         }
                         memcpy (value, xpair->value.gfx_value_u.val_string.val_string_val,
                                 xpair->value.gfx_value_u.val_string.val_string_len);
+                        value[xpair->value.gfx_value_u.val_string.val_string_len] = '\0';
                         free (xpair->value.gfx_value_u.val_string.val_string_val);
                         ret = dict_set_dynstr (this, key, value);
                         break;
                 case GF_DATA_TYPE_GFUUID:
-                        uuid = GF_CALLOC (1, sizeof (uuid_t), gf_common_mt_uuid_t);
+                        uuid = GF_MALLOC (sizeof (uuid_t), gf_common_mt_uuid_t);
                         if (!uuid) {
                                 errno = ENOMEM;
                                 goto out;
@@ -842,7 +843,7 @@ xdr_to_dict (gfx_dict *dict, dict_t **to)
                         ret = dict_set_iatt (this, key, iatt, false);
                         break;
                 case GF_DATA_TYPE_PTR:
-                        value = GF_CALLOC (1, xpair->value.gfx_value_u.other.other_len + 1,
+                        value = GF_MALLOC (xpair->value.gfx_value_u.other.other_len + 1,
                                            gf_common_mt_char);
                         if (!value) {
                                 errno = ENOMEM;
@@ -850,6 +851,7 @@ xdr_to_dict (gfx_dict *dict, dict_t **to)
                         }
                         memcpy (value, xpair->value.gfx_value_u.other.other_val,
                                 xpair->value.gfx_value_u.other.other_len);
+                        value[xpair->value.gfx_value_u.other.other_len] = '\0';
                         free (xpair->value.gfx_value_u.other.other_val);
                         ret = dict_set_dynptr (this, key, value,
                                                xpair->value.gfx_value_u.other.other_len);