mem-pool: track glusterfs_ctx_t in struct mem_pool

In order to generate statedumps per glusterfs_ctx_t, it is needed to
place all the memory pools in a structure that the context can reach.
The 'struct mem_pool' has been extended with a 'list_head owner' that is
linked with the glusterfs_ctx_t->mempool_list.

All callers of mem_pool_new() have been updated to pass the current
glusterfs_ctx_t along. This context is needed to add the new memory pool
to the list and for grabbing the ctx->lock while updating the
glusterfs_ctx_t->mempool_list.

Updates: #307
Change-Id: Ia9384424d8d1630ef3efc9d5d523bf739c356c6e
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: https://review.gluster.org/18075
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>

1 files changed, 0 insertions, 2 deletions

diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h
index 8a55d724c6e..37ce5d91a1c 100644
--- a/libglusterfs/src/glusterfs.h
+++ b/libglusterfs/src/glusterfs.h
@@ -502,11 +502,9 @@ struct _glusterfs_ctx {
         int                process_mode; /*mode in which process is runninng*/
         struct syncenv    *env;          /* The env pointer to the synctasks */
 
-#if defined(OLD_MEM_POOLS)
         struct list_head   mempool_list; /* used to keep a global list of
                                             mempools, used to log details of
                                             mempool in statedump */
-#endif
         char              *statedump_path;
 
         struct mem_pool   *dict_pool;