build: warning suppression (round n)

with this patch, there are no more warnings with gcc (GCC) 4.6.1 20110908

Change-Id: Ice0d52d304b9846395f8a4a191c98eb53125f792
BUG: 2550
Reviewed-on: http://review.gluster.com/607
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@gluster.com>

11 files changed, 80 insertions, 33 deletions

diff --git a/xlators/cluster/afr/src/afr-common.c b/xlators/cluster/afr/src/afr-common.c
index e6b0881fc..acefa697f 100644
--- a/xlators/cluster/afr/src/afr-common.c
+++ b/xlators/cluster/afr/src/afr-common.c
@@ -2235,7 +2235,6 @@ afr_flush (call_frame_t *frame, xlator_t *this, fd_t *fd)
         int ret        = -1;
         int op_ret   = -1;
         int op_errno = 0;
-        int call_count = 0;
 
         VALIDATE_OR_GOTO (frame, out);
         VALIDATE_OR_GOTO (this, out);
@@ -2251,8 +2250,6 @@ afr_flush (call_frame_t *frame, xlator_t *this, fd_t *fd)
                 goto out;
         }
 
-        call_count = afr_up_children_count (local->child_up, priv->child_count);
-
         transaction_frame = copy_frame (frame);
         if (!transaction_frame) {
                 op_errno = ENOMEM;
diff --git a/xlators/cluster/afr/src/afr-lk-common.c b/xlators/cluster/afr/src/afr-lk-common.c
index 1828ddde7..33ddb9db1 100644
--- a/xlators/cluster/afr/src/afr-lk-common.c
+++ b/xlators/cluster/afr/src/afr-lk-common.c
@@ -587,7 +587,6 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
         afr_local_t         *local    = NULL;
         afr_private_t       *priv     = NULL;
         struct gf_flock flock = {0,};
-        struct gf_flock full_flock = {0,};
         int call_count = 0;
         int i = 0;
         int piggyback = 0;
@@ -602,13 +601,10 @@ afr_unlock_inodelk (call_frame_t *frame, xlator_t *this)
         flock.l_len   = int_lock->lk_flock.l_len;
         flock.l_type  = F_UNLCK;
 
-
         gf_log (this->name, GF_LOG_DEBUG, "attempting data unlock range %"PRIu64
                 " %"PRIu64" by %"PRIu64, flock.l_start, flock.l_len,
                 frame->root->lk_owner);
 
-        full_flock.l_type = F_UNLCK;
-
         call_count = afr_locked_nodes_count (int_lock->inode_locked_nodes,
                                              priv->child_count);
 
@@ -2120,7 +2116,12 @@ afr_lock_recovery_preopen (call_frame_t *frame, xlator_t *this)
         GF_ASSERT (local && local->fd);
 
         ret = fd_ctx_get (local->fd, this, &tmp);
+        if (ret)
+                gf_log (this->name, GF_LOG_WARNING,
+                        "%s: failed to get the context of fd",
+                        uuid_utoa (local->fd->inode->gfid));
         fdctx = (afr_fd_ctx_t *) (long) tmp;
+        /* TODO: instead we should return from the function */
         GF_ASSERT (fdctx);
 
         child_index = local->lock_recovery_child;
diff --git a/xlators/cluster/afr/src/pump.c b/xlators/cluster/afr/src/pump.c
index 4d5d9ec44..9154c2ead 100644
--- a/xlators/cluster/afr/src/pump.c
+++ b/xlators/cluster/afr/src/pump.c
@@ -171,17 +171,18 @@ pump_save_path (xlator_t *this, const char *path)
 
         dict = dict_new ();
         dict_ret = dict_set_str (dict, PUMP_PATH, (char *)path);
+        if (dict_ret)
+                gf_log (this->name, GF_LOG_WARNING,
+                        "%s: failed to set the key %s", path, PUMP_PATH);
 
         ret = syncop_setxattr (PUMP_SOURCE_CHILD (this), &loc, dict, 0);
 
         if (ret < 0) {
-                gf_log (this->name, GF_LOG_DEBUG,
+                gf_log (this->name, GF_LOG_INFO,
                         "setxattr failed - could not save path=%s", path);
         } else {
                 gf_log (this->name, GF_LOG_DEBUG,
                         "setxattr succeeded - saved path=%s", path);
-                gf_log (this->name, GF_LOG_DEBUG,
-                        "Saving path for status info");
         }
 
         dict_unref (dict);
@@ -248,13 +249,9 @@ pump_get_resume_path (xlator_t *this)
 static int
 pump_update_resume_state (xlator_t *this, const char *path)
 {
-        afr_private_t *priv = NULL;
-
         pump_state_t state;
         const char *resume_path = NULL;
 
-        priv = this->private;
-
         state = pump_get_state ();
 
         if (state == PUMP_STATE_RESUME) {
@@ -546,6 +543,10 @@ pump_complete_migration (xlator_t *this)
                 pump_priv->pump_finished = _gf_true;
 
                 dict_ret = dict_set_str (dict, PUMP_SOURCE_COMPLETE, "jargon");
+                if (dict_ret)
+                        gf_log (this->name, GF_LOG_WARNING,
+                                "%s: failed to set the key %s",
+                                loc.path, PUMP_SOURCE_COMPLETE);
 
                 ret = syncop_setxattr (PUMP_SOURCE_CHILD (this), &loc, dict, 0);
                 if (ret < 0) {
@@ -553,6 +554,10 @@ pump_complete_migration (xlator_t *this)
                                 "setxattr failed - while  notifying source complete");
                 }
                 dict_ret = dict_set_str (dict, PUMP_SINK_COMPLETE, "jargon");
+                if (dict_ret)
+                        gf_log (this->name, GF_LOG_WARNING,
+                                "%s: failed to set the key %s",
+                                loc.path, PUMP_SINK_COMPLETE);
 
                 ret = syncop_setxattr (PUMP_SINK_CHILD (this), &loc, dict, 0);
                 if (ret < 0) {
diff --git a/xlators/cluster/dht/src/dht-common.c b/xlators/cluster/dht/src/dht-common.c
index 0fa14968b..109bc77f2 100644
--- a/xlators/cluster/dht/src/dht-common.c
+++ b/xlators/cluster/dht/src/dht-common.c
@@ -881,9 +881,13 @@ dht_lookup_directory (call_frame_t *frame, xlator_t *this, loc_t *loc)
                 local->xattr = NULL;
         }
 
-        if (!uuid_is_null (local->gfid))
+        if (!uuid_is_null (local->gfid)) {
                 ret = dict_set_static_bin (local->xattr_req, "gfid-req",
                                            local->gfid, 16);
+                if (ret)
+                        gf_log (this->name, GF_LOG_WARNING,
+                                "%s: failed to set gfid", local->loc.path);
+        }
 
         for (i = 0; i < call_cnt; i++) {
                 STACK_WIND (frame, dht_lookup_dir_cbk,
@@ -3206,6 +3210,9 @@ dht_mkdir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
                         ret = dht_layout_merge (this, layout, prev->this,
                                                 op_ret, op_errno, NULL);
                 }
+                if (ret)
+                        gf_log (this->name, GF_LOG_WARNING,
+                                "%s: failed to merge layouts", local->loc.path);
 
                 if (op_ret == -1) {
                         local->op_errno = op_errno;
@@ -3260,6 +3267,12 @@ dht_mkdir_hashed_cbk (call_frame_t *frame, void *cookie,
                 ret = dht_layout_merge (this, layout, prev->this,
                                         op_ret, op_errno, NULL);
 
+        /* TODO: we may have to return from the function
+           if layout merge fails. For now, lets just log an error */
+        if (ret)
+                gf_log (this->name, GF_LOG_WARNING,
+                        "%s: failed to merge layouts", local->loc.path);
+
         if (op_ret == -1) {
                 local->op_errno = op_errno;
                 goto err;
diff --git a/xlators/cluster/stripe/src/stripe.c b/xlators/cluster/stripe/src/stripe.c
index 8ba624efa..206b1e132 100644
--- a/xlators/cluster/stripe/src/stripe.c
+++ b/xlators/cluster/stripe/src/stripe.c
@@ -199,7 +199,7 @@ stripe_entry_self_heal (call_frame_t *frame, xlator_t *this,
         ret = dict_set_static_bin (dict, "gfid-req", local->stbuf.ia_gfid, 16);
         if (ret)
                 gf_log (this->name, GF_LOG_WARNING,
-                        "failed to set gfid-req");
+                        "%s: failed to set gfid-req", local->loc.path);
 
         while (trav) {
                 if (IA_ISREG (local->stbuf.ia_type)) {
@@ -2139,7 +2139,6 @@ stripe_first_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
                    inode_t *inode, struct iatt *buf, struct iatt *preparent,
                    struct iatt *postparent)
 {
-        int32_t           callcnt = 0;
         stripe_local_t   *local = NULL;
         stripe_private_t *priv = NULL;
         call_frame_t     *prev = NULL;
@@ -2164,7 +2163,7 @@ stripe_first_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
         trav = this->children;
         loc = &local->loc;
 
-        callcnt = --local->call_count;
+        --local->call_count;
 
         if (op_ret == -1) {
                 gf_log (this->name, GF_LOG_DEBUG, "%s returned error %s",
@@ -2210,7 +2209,7 @@ stripe_first_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
                 local->stbuf.ia_size        = local->stbuf_size;
                 local->stbuf.ia_blocks      = local->stbuf_blocks;
         }
-        
+
         /* Send a setxattr request to nodes where the
            files are created */
         sprintf (size_key, "trusted.%s.stripe-size", this->name);
@@ -2274,7 +2273,6 @@ stripe_create (call_frame_t *frame, xlator_t *this, loc_t *loc,
 {
         stripe_private_t *priv = NULL;
         stripe_local_t   *local = NULL;
-        xlator_list_t    *trav = NULL;
         int32_t           op_errno = EINVAL;
         int               ret            = 0;
         int               need_unref     = 0;
@@ -2329,7 +2327,6 @@ stripe_create (call_frame_t *frame, xlator_t *this, loc_t *loc,
         sprintf (count_key, "trusted.%s.stripe-count", this->name);
         sprintf (index_key, "trusted.%s.stripe-index", this->name);
 
-        trav = this->children;
         if (priv->xattr_supported) {
                 dict = dict_new ();
                 if (!dict) {
diff --git a/xlators/features/marker/src/marker.c b/xlators/features/marker/src/marker.c
index 7ddc7968f..0faa8be58 100644
--- a/xlators/features/marker/src/marker.c
+++ b/xlators/features/marker/src/marker.c
@@ -236,6 +236,9 @@ marker_getxattr_stampfile_cbk (call_frame_t *frame, xlator_t *this,
 
         ret = dict_set_bin (dict, (char *)name, vol_mark,
                             sizeof (struct volume_mark));
+        if (ret)
+                gf_log (this->name, GF_LOG_WARNING, "failed to set key %s",
+                        name);
 
         STACK_UNWIND_STRICT (getxattr, frame, 0, 0, dict);
 
@@ -390,8 +393,9 @@ marker_start_setxattr (call_frame_t *frame, xlator_t *this)
 
         ret = dict_set_static_bin (dict, priv->marker_xattr,
                                    (void *)local->timebuf, 8);
-
-        gf_log (this->name, GF_LOG_DEBUG, "path = %s", local->loc.path);
+        if (ret)
+                gf_log (this->name, GF_LOG_WARNING,
+                        "failed to set marker xattr (%s)", local->loc.path);
 
         STACK_WIND (frame, marker_specific_setxattr_cbk, FIRST_CHILD(this),
                     FIRST_CHILD(this)->fops->setxattr, &local->loc, dict, 0);
diff --git a/xlators/features/quota/src/quota.c b/xlators/features/quota/src/quota.c
index c15d59f54..3ec480a94 100644
--- a/xlators/features/quota/src/quota.c
+++ b/xlators/features/quota/src/quota.c
@@ -812,6 +812,11 @@ quota_writev_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
         }
 
         ret = inode_ctx_get (local->loc.inode, this, &ctx_int);
+        if (ret) {
+                gf_log (this->name, GF_LOG_WARNING,
+                        "%s: failed to get the context", local->loc.path);
+                goto out;
+        }
 
         ctx = (quota_inode_ctx_t *)(unsigned long) ctx_int;
 
diff --git a/xlators/mount/fuse/src/fuse-bridge.c b/xlators/mount/fuse/src/fuse-bridge.c
index 9c4be8892..70aac385f 100644
--- a/xlators/mount/fuse/src/fuse-bridge.c
+++ b/xlators/mount/fuse/src/fuse-bridge.c
@@ -3023,6 +3023,8 @@ fuse_first_lookup (xlator_t *this)
         memset (gfid, 0, 16);
         gfid[15] = 1;
         ret = dict_set_static_bin (dict, "gfid-req", gfid, 16);
+        if (ret)
+                gf_log (xl->name, GF_LOG_ERROR, "failed to set 'gfid-req'");
 
         STACK_WIND (frame, fuse_first_lookup_cbk, xl, xl->fops->lookup,
                     &loc, dict);
diff --git a/xlators/nfs/server/src/mount3.c b/xlators/nfs/server/src/mount3.c
index 62ad34384..89634af94 100644
--- a/xlators/nfs/server/src/mount3.c
+++ b/xlators/nfs/server/src/mount3.c
@@ -1443,7 +1443,10 @@ mnt3_init_export_ent (struct mount3_state *ms, xlator_t *xl, char *exportpath,
                 exp->exptype = MNT3_EXPTYPE_VOLUME;
                 ret = snprintf (exp->expname, alloclen, "/%s", xl->name);
         }
-
+        if (ret < 0) {
+                gf_log (xl->name, GF_LOG_WARNING,
+                        "failed to get the export name");
+        }
         /* Just copy without discrimination, we'll determine whether to
          * actually use it when a mount request comes in and a file handle
          * needs to be built.
diff --git a/xlators/performance/io-cache/src/io-cache.c b/xlators/performance/io-cache/src/io-cache.c
index b848910c1..8b32a4f06 100644
--- a/xlators/performance/io-cache/src/io-cache.c
+++ b/xlators/performance/io-cache/src/io-cache.c
@@ -649,6 +649,10 @@ ioc_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
                             || ((table->max_file_size > 0)
                                 && (table->max_file_size < ioc_inode->ia_size))) {
                                 ret = fd_ctx_set (fd, this, 1);
+                                if (ret)
+                                        gf_log (this->name, GF_LOG_WARNING,
+                                                "%s: failed to set fd ctx",
+                                                local->file_loc.path);
                         }
                 }
                 ioc_inode_unlock (ioc_inode);
@@ -657,16 +661,26 @@ ioc_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
                                (uint64_t)(long)ioc_inode);
 
                 /* If O_DIRECT open, we disable caching on it */
-                if (local->flags & O_DIRECT)
+                if (local->flags & O_DIRECT) {
                         /*
                          * O_DIRECT is only for one fd, not the inode
                          * as a whole */
                         ret = fd_ctx_set (fd, this, 1);
+                        if (ret)
+                                gf_log (this->name, GF_LOG_WARNING,
+                                        "%s: failed to set fd ctx",
+                                        local->file_loc.path);
+                }
 
                 /* if weight == 0, we disable caching on it */
-                if (!weight)
+                if (!weight) {
                         /* we allow a pattern-matched cache disable this way */
                         ret = fd_ctx_set (fd, this, 1);
+                        if (ret)
+                                gf_log (this->name, GF_LOG_WARNING,
+                                        "%s: failed to set fd ctx",
+                                        local->file_loc.path);
+                }
 
         }
 
diff --git a/xlators/system/posix-acl/src/posix-acl.c b/xlators/system/posix-acl/src/posix-acl.c
index 7a80d1195..a0a47134a 100644
--- a/xlators/system/posix-acl/src/posix-acl.c
+++ b/xlators/system/posix-acl/src/posix-acl.c
@@ -171,7 +171,6 @@ static int
 acl_permits (call_frame_t *frame, inode_t *inode, int want)
 {
         int                     verdict = 0;
-        int                     ret = 0;
         struct posix_acl       *acl = NULL;
         struct posix_ace       *ace = NULL;
         struct posix_acl_ctx   *ctx = NULL;
@@ -190,8 +189,7 @@ acl_permits (call_frame_t *frame, inode_t *inode, int want)
         if (frame_is_super_user (frame))
                 goto green;
 
-        ret = posix_acl_get (inode, frame->this, &acl, NULL);
-
+        posix_acl_get (inode, frame->this, &acl, NULL);
         if (!acl) {
                 acl = posix_acl_ref (frame->this, conf->minimal_acl);
         }
@@ -723,7 +721,9 @@ acl_set:
         posix_acl_ctx_update (inode, this, buf);
 
         ret = posix_acl_set (inode, this, acl_access, acl_default);
-
+        if (ret)
+                gf_log (this->name, GF_LOG_WARNING,
+                        "failed to set ACL in context");
 unwind:
         my_xattr = frame->local;
         frame->local = NULL;
@@ -769,7 +769,14 @@ green:
         }
 
         ret = dict_set_int8 (my_xattr, POSIX_ACL_ACCESS_XATTR, 0);
+        if (ret)
+                gf_log (this->name, GF_LOG_WARNING, "failed to set key %s",
+                        POSIX_ACL_ACCESS_XATTR);
+
         ret = dict_set_int8 (my_xattr, POSIX_ACL_DEFAULT_XATTR, 0);
+        if (ret)
+                gf_log (this->name, GF_LOG_WARNING, "failed to set key %s",
+                        POSIX_ACL_DEFAULT_XATTR);
 
         frame->local = my_xattr;
         STACK_WIND (frame, posix_acl_lookup_cbk,
@@ -1644,7 +1651,6 @@ posix_acl_setxattr_update (xlator_t *this, inode_t *inode, dict_t *xattr)
         struct posix_acl     *old_default = NULL;
         struct posix_acl_ctx *ctx = NULL;
         int                   ret = 0;
-        mode_t                mode = 0;
 
         ctx = posix_acl_ctx_get (inode, this);
         if (!ctx)
@@ -1663,7 +1669,7 @@ posix_acl_setxattr_update (xlator_t *this, inode_t *inode, dict_t *xattr)
         ret = posix_acl_set (inode, this, acl_access, acl_default);
 
         if (acl_access && acl_access != old_access) {
-                mode = posix_acl_access_set_mode (acl_access, ctx);
+                posix_acl_access_set_mode (acl_access, ctx);
         }
 
         if (acl_access)
@@ -1675,7 +1681,7 @@ posix_acl_setxattr_update (xlator_t *this, inode_t *inode, dict_t *xattr)
         if (old_default)
                 posix_acl_unref (this, old_default);
 
-        return 0;
+        return ret;
 }