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authorRaghavendra Bhat <raghavendra@redhat.com>2013-07-25 01:14:48 +0530
committerAnand Avati <avati@redhat.com>2013-10-03 21:32:43 -0700
commitdcfe4ab475c53cec7d117fb8052b26213a4b41db (patch)
tree4a18f76152b1779077315f49fadd0cee5c24a587 /api/src
parenta25bd2d7695760c9fe35fec39065c9326f2952d6 (diff)
glusterfsd, libgfapi: destroy the temporary graphs constructed for comparison
* The new and the oldgraphs which have been constructed whenever there is a volfile change (either reconfigure of the existing graph or creating a new graph) for comparison should be freed. Otherwise frequent graph changes will lead to huge memory leak Change-Id: I4faddb1aa9393b34cd2de6732e537a60f600026a BUG: 948178 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/5388 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'api/src')
-rw-r--r--api/src/glfs-mgmt.c159
1 files changed, 2 insertions, 157 deletions
diff --git a/api/src/glfs-mgmt.c b/api/src/glfs-mgmt.c
index 20362543e..6843e9cb3 100644
--- a/api/src/glfs-mgmt.c
+++ b/api/src/glfs-mgmt.c
@@ -203,162 +203,6 @@ out:
static int
-xlator_equal_rec (xlator_t *xl1, xlator_t *xl2)
-{
- xlator_list_t *trav1 = NULL;
- xlator_list_t *trav2 = NULL;
- int ret = 0;
-
- if (xl1 == NULL || xl2 == NULL) {
- gf_log ("xlator", GF_LOG_DEBUG, "invalid argument");
- return -1;
- }
-
- trav1 = xl1->children;
- trav2 = xl2->children;
-
- while (trav1 && trav2) {
- ret = xlator_equal_rec (trav1->xlator, trav2->xlator);
- if (ret) {
- gf_log ("glfs-mgmt", GF_LOG_DEBUG,
- "xlators children not equal");
- goto out;
- }
-
- trav1 = trav1->next;
- trav2 = trav2->next;
- }
-
- if (trav1 || trav2) {
- ret = -1;
- goto out;
- }
-
- if (strcmp (xl1->name, xl2->name)) {
- ret = -1;
- goto out;
- }
-out :
- return ret;
-}
-
-
-static gf_boolean_t
-is_graph_topology_equal (glusterfs_graph_t *graph1,
- glusterfs_graph_t *graph2)
-{
- xlator_t *trav1 = NULL;
- xlator_t *trav2 = NULL;
- gf_boolean_t ret = _gf_true;
-
- trav1 = graph1->first;
- trav2 = graph2->first;
-
- ret = xlator_equal_rec (trav1, trav2);
-
- if (ret) {
- gf_log ("glfs-mgmt", GF_LOG_DEBUG,
- "graphs are not equal");
- ret = _gf_false;
- goto out;
- }
-
- ret = _gf_true;
- gf_log ("glfs-mgmt", GF_LOG_DEBUG,
- "graphs are equal");
-
-out:
- return ret;
-}
-
-
-/* Function has 3types of return value 0, -ve , 1
- * return 0 =======> reconfiguration of options has succeeded
- * return 1 =======> the graph has to be reconstructed and all the xlators should be inited
- * return -1(or -ve) =======> Some Internal Error occurred during the operation
- */
-static int
-glusterfs_volfile_reconfigure (struct glfs *fs, FILE *newvolfile_fp)
-{
- glusterfs_graph_t *oldvolfile_graph = NULL;
- glusterfs_graph_t *newvolfile_graph = NULL;
- FILE *oldvolfile_fp = NULL;
- glusterfs_ctx_t *ctx = NULL;
-
- int ret = -1;
-
- oldvolfile_fp = tmpfile ();
- if (!oldvolfile_fp)
- goto out;
-
- if (!fs->oldvollen) {
- ret = 1; // Has to call INIT for the whole graph
- goto out;
- }
- fwrite (fs->oldvolfile, fs->oldvollen, 1, oldvolfile_fp);
- fflush (oldvolfile_fp);
- if (ferror (oldvolfile_fp)) {
- goto out;
- }
-
- oldvolfile_graph = glusterfs_graph_construct (oldvolfile_fp);
- if (!oldvolfile_graph) {
- goto out;
- }
-
- newvolfile_graph = glusterfs_graph_construct (newvolfile_fp);
- if (!newvolfile_graph) {
- goto out;
- }
-
- if (!is_graph_topology_equal (oldvolfile_graph,
- newvolfile_graph)) {
-
- ret = 1;
- gf_log ("glfs-mgmt", GF_LOG_DEBUG,
- "Graph topology not equal(should call INIT)");
- goto out;
- }
-
- gf_log ("glfs-mgmt", GF_LOG_DEBUG,
- "Only options have changed in the new "
- "graph");
-
- ctx = fs->ctx;
-
- if (!ctx) {
- gf_log ("glfs-mgmt", GF_LOG_ERROR,
- "glusterfs_ctx_get() returned NULL");
- goto out;
- }
-
- oldvolfile_graph = ctx->active;
-
- if (!oldvolfile_graph) {
- gf_log ("glfs-mgmt", GF_LOG_ERROR,
- "glusterfs_ctx->active is NULL");
- goto out;
- }
-
- /* */
- ret = glusterfs_graph_reconfigure (oldvolfile_graph,
- newvolfile_graph);
- if (ret) {
- gf_log ("glfs-mgmt", GF_LOG_DEBUG,
- "Could not reconfigure new options in old graph");
- goto out;
- }
-
- ret = 0;
-out:
- if (oldvolfile_fp)
- fclose (oldvolfile_fp);
-
- return ret;
-}
-
-
-static int
glusterfs_oldvolfile_update (struct glfs *fs, char *volfile, ssize_t size)
{
int ret = -1;
@@ -451,7 +295,8 @@ mgmt_getspec_cbk (struct rpc_req *req, struct iovec *iov, int count,
* return -1(or -ve) =======> Some Internal Error occurred during the operation
*/
- ret = glusterfs_volfile_reconfigure (fs, tmpfp);
+ ret = glusterfs_volfile_reconfigure (fs->oldvollen, tmpfp, fs->ctx,
+ fs->oldvolfile);
if (ret == 0) {
gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG,
"No need to re-load volfile, reconfigure done");