Multiple files: make root gfid a static variable

In many places we use it, compare to it, etc. It could be a static variable,
as it really doesn't change. I think it's better than initializing to 0
and then doing gfid[15] = 1 or other tricks.

I think there are additional oppportunuties to make more variables static.
This is an attempt at an easy one.

Change-Id: I7f23a30a94056d8f043645371ab841cbd0f90d19
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>

4 files changed, 7 insertions, 16 deletions

diff --git a/xlators/nfs/server/src/mount3.c b/xlators/nfs/server/src/mount3.c
index 177046ecf8c..3b16bb82c74 100644
--- a/xlators/nfs/server/src/mount3.c
+++ b/xlators/nfs/server/src/mount3.c
@@ -920,14 +920,11 @@ mnt3svc_volume_mount(rpcsvc_request_t *req, struct mount3_state *ms,
 {
     inode_t *exportinode = NULL;
     int ret = -EFAULT;
-    uuid_t rootgfid = {
-        0,
-    };
+    static uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
 
     if ((!req) || (!exp) || (!ms))
         return ret;
 
-    rootgfid[15] = 1;
     exportinode = inode_find(exp->vol->itable, rootgfid);
     if (!exportinode) {
         gf_msg(GF_MNT, GF_LOG_ERROR, ENOENT, NFS_MSG_GET_ROOT_INODE_FAIL,
@@ -1372,9 +1369,7 @@ __mnt3_resolve_subdir(mnt3_resolve_t *mres)
     nfs_user_t nfu = {
         0,
     };
-    uuid_t rootgfid = {
-        0,
-    };
+    static uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
 
     if (!mres)
         return ret;
@@ -1385,7 +1380,6 @@ __mnt3_resolve_subdir(mnt3_resolve_t *mres)
     if (!firstcomp)
         goto err;
 
-    rootgfid[15] = 1;
     ret = nfs_entry_loc_fill(mres->mstate->nfsx, mres->exp->vol->itable,
                              rootgfid, firstcomp, &mres->resolveloc,
                              NFS_RESOLVE_CREATE, NULL);
diff --git a/xlators/nfs/server/src/nfs-common.c b/xlators/nfs/server/src/nfs-common.c
index 5b3ee976e37..b8f6b6f318e 100644
--- a/xlators/nfs/server/src/nfs-common.c
+++ b/xlators/nfs/server/src/nfs-common.c
@@ -272,11 +272,8 @@ err:
 int
 nfs_root_loc_fill(inode_table_t *itable, loc_t *loc)
 {
-    uuid_t rootgfid = {
-        0,
-    };
+    static uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
 
-    rootgfid[15] = 1;
     return nfs_gfid_loc_fill(itable, rootgfid, loc, NFS_RESOLVE_EXIST);
 }
 
diff --git a/xlators/nfs/server/src/nfs-fops.c b/xlators/nfs/server/src/nfs-fops.c
index 896c67c9305..4d8540c2c3e 100644
--- a/xlators/nfs/server/src/nfs-fops.c
+++ b/xlators/nfs/server/src/nfs-fops.c
@@ -327,7 +327,7 @@ nfs_gfid_dict(inode_t *inode)
     unsigned char *dyngfid = NULL;
     dict_t *dictgfid = NULL;
     int ret = -1;
-    uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
+    static uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
 
     dyngfid = GF_MALLOC(sizeof(uuid_t), gf_common_mt_char);
     if (dyngfid == NULL)
diff --git a/xlators/nfs/server/src/nfs3-fh.c b/xlators/nfs/server/src/nfs3-fh.c
index d0c0a2f55b2..caa3cfa6995 100644
--- a/xlators/nfs/server/src/nfs3-fh.c
+++ b/xlators/nfs/server/src/nfs3-fh.c
@@ -64,7 +64,7 @@ nfs3_fh_build_indexed_root_fh(xlator_list_t *cl, xlator_t *xl)
     struct iatt buf = {
         0,
     };
-    uuid_t root = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
+    static uuid_t root = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
 
     if ((!cl) || (!xl))
         return fh;
@@ -85,7 +85,7 @@ nfs3_fh_build_uuid_root_fh(uuid_t volumeid, uuid_t mountid)
     struct iatt buf = {
         0,
     };
-    uuid_t root = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
+    static uuid_t root = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
 
     gf_uuid_copy(buf.ia_gfid, root);
     nfs3_fh_init(&fh, &buf);
@@ -98,7 +98,7 @@ nfs3_fh_build_uuid_root_fh(uuid_t volumeid, uuid_t mountid)
 int
 nfs3_fh_is_root_fh(struct nfs3_fh *fh)
 {
-    uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
+    static uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
 
     if (!fh)
         return 0;