core: changes to support gfid-access

Change-Id: I38d2fdc47e4b805deafca6805e54807976ffdb7e
Signed-off-by: Amar Tumballi <amarts@redhat.com>
BUG: 952029
Reviewed-on: http://review.gluster.org/5496
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>

4 files changed, 40 insertions, 12 deletions

diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h
index 14f0130ef26..324e3f5b45c 100644
--- a/libglusterfs/src/glusterfs.h
+++ b/libglusterfs/src/glusterfs.h
@@ -325,6 +325,7 @@ struct _cmd_args {
         int              mac_compat;
 	int		 fopen_keep_cache;
 	int		 gid_timeout;
+        int              aux_gfid_mount;
 	struct list_head xlator_options;  /* list of xlator_option_t */
 
 	/* fuse options */
@@ -353,6 +354,7 @@ struct _cmd_args {
         int             brick_port;
         char           *brick_name;
         int             brick_port2;
+
 };
 typedef struct _cmd_args cmd_args_t;
 
diff --git a/libglusterfs/src/graph.c b/libglusterfs/src/graph.c
index 8a84d4cbc16..1dba63fc052 100644
--- a/libglusterfs/src/graph.c
+++ b/libglusterfs/src/graph.c
@@ -213,6 +213,21 @@ glusterfs_graph_mac_compat (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx)
         return ret;
 }
 
+int
+glusterfs_graph_gfid_access (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx)
+{
+        int ret = 0;
+        cmd_args_t      *cmd_args = NULL;
+
+        cmd_args = &ctx->cmd_args;
+
+        if (!cmd_args->aux_gfid_mount)
+                return 0;
+
+        ret = glusterfs_graph_insert (graph, ctx, "features/gfid-access",
+                                      "gfid-access-autoload", 1);
+        return ret;
+}
 
 static void
 gf_add_cmdline_options (glusterfs_graph_t *graph, cmd_args_t *cmd_args)
@@ -441,6 +456,14 @@ glusterfs_graph_prepare (glusterfs_graph_t *graph, glusterfs_ctx_t *ctx)
                 return -1;
         }
 
+        /* XXX: gfid-access */
+        ret = glusterfs_graph_gfid_access (graph, ctx);
+        if (ret) {
+                gf_log ("graph", GF_LOG_ERROR,
+                        "glusterfs graph 'gfid-access' failed");
+                return -1;
+        }
+
         /* XXX: this->ctx setting */
         for (trav = graph->first; trav; trav = trav->next) {
                 trav->ctx = ctx;
diff --git a/libglusterfs/src/inode.c b/libglusterfs/src/inode.c
index 6f1c8ec3f25..add686fd208 100644
--- a/libglusterfs/src/inode.c
+++ b/libglusterfs/src/inode.c
@@ -310,7 +310,7 @@ __inode_destroy (inode_t *inode)
                 goto noctx;
         }
 
-        for (index = 0; index < inode->table->xl->graph->xl_count; index++) {
+        for (index = 0; index < inode->table->ctxcount; index++) {
                 if (inode->_ctx[index].xl_key) {
                         xl = (xlator_t *)(long)inode->_ctx[index].xl_key;
                         old_THIS = THIS;
@@ -528,10 +528,9 @@ __inode_create (inode_table_t *table)
         INIT_LIST_HEAD (&newi->hash);
         INIT_LIST_HEAD (&newi->dentry_list);
 
-        newi->_ctx = GF_CALLOC (1, (sizeof (struct _inode_ctx) *
-                                    table->xl->graph->xl_count),
+        newi->_ctx = GF_CALLOC (1,
+                                (sizeof (struct _inode_ctx) * table->ctxcount),
                                 gf_common_mt_inode_ctx);
-
         if (newi->_ctx == NULL) {
                 LOCK_DESTROY (&newi->lock);
                 mem_put (newi);
@@ -1316,6 +1315,7 @@ inode_table_new (size_t lru_limit, xlator_t *xl)
                 return NULL;
 
         new->xl = xl;
+        new->ctxcount = xl->graph->xl_count + 1;
 
         new->lru_limit = lru_limit;
 
@@ -1466,7 +1466,7 @@ __inode_ctx_set2 (inode_t *inode, xlator_t *xlator, uint64_t *value1_p,
         if (!inode || !xlator)
                 return -1;
 
-        for (index = 0; index < xlator->graph->xl_count; index++) {
+        for (index = 0; index < inode->table->ctxcount; index++) {
                 if (!inode->_ctx[index].xl_key) {
                         if (set_idx == -1)
                                 set_idx = index;
@@ -1523,12 +1523,12 @@ __inode_ctx_get2 (inode_t *inode, xlator_t *xlator, uint64_t *value1,
         if (!inode || !xlator)
                 return -1;
 
-        for (index = 0; index < xlator->graph->xl_count; index++) {
+        for (index = 0; index < inode->table->ctxcount; index++) {
                 if (inode->_ctx[index].xl_key == xlator)
                         break;
         }
 
-        if (index == xlator->graph->xl_count) {
+        if (index == inode->table->ctxcount) {
                 ret = -1;
                 goto out;
         }
@@ -1575,12 +1575,13 @@ inode_ctx_del2 (inode_t *inode, xlator_t *xlator, uint64_t *value1,
 
         LOCK (&inode->lock);
         {
-                for (index = 0; index < xlator->graph->xl_count; index++) {
+                for (index = 0; index < inode->table->ctxcount;
+                     index++) {
                         if (inode->_ctx[index].xl_key == xlator)
                                 break;
                 }
 
-                if (index == xlator->graph->xl_count) {
+                if (index == inode->table->ctxcount) {
                         ret = -1;
                         goto unlock;
                 }
@@ -1628,14 +1629,15 @@ inode_dump (inode_t *inode, char *prefix)
                 gf_proc_dump_write("ref", "%u", inode->ref);
                 gf_proc_dump_write("ia_type", "%d", inode->ia_type);
                 if (inode->_ctx) {
-                        inode_ctx = GF_CALLOC (inode->table->xl->graph->xl_count,
+                        inode_ctx = GF_CALLOC (inode->table->ctxcount,
                                                sizeof (*inode_ctx),
                                                gf_common_mt_inode_ctx);
                         if (inode_ctx == NULL) {
                                 goto unlock;
                         }
 
-                        for (i = 0; i < inode->table->xl->graph->xl_count; i++) {
+                        for (i = 0; i < inode->table->ctxcount;
+                             i++) {
                                 inode_ctx[i] = inode->_ctx[i];
                         }
                 }
@@ -1652,7 +1654,7 @@ unlock:
         UNLOCK(&inode->lock);
 
         if (inode_ctx && (dump_options.xl_options.dump_inodectx == _gf_true)) {
-                for (i = 0; i < inode->table->xl->graph->xl_count; i++) {
+                for (i = 0; i < inode->table->ctxcount; i++) {
                         if (inode_ctx[i].xl_key) {
                                 xl = (xlator_t *)(long)inode_ctx[i].xl_key;
                                 if (xl->dumpops && xl->dumpops->inodectx)
diff --git a/libglusterfs/src/inode.h b/libglusterfs/src/inode.h
index 199ce44849a..cf766a31bc6 100644
--- a/libglusterfs/src/inode.h
+++ b/libglusterfs/src/inode.h
@@ -56,6 +56,7 @@ struct _inode_table {
         struct mem_pool   *inode_pool;  /* memory pool for inodes */
         struct mem_pool   *dentry_pool; /* memory pool for dentrys */
         struct mem_pool   *fd_mem_pool; /* memory pool for fd_t */
+        int                ctxcount;    /* number of slots in inode->ctx */
 };