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authorAnand V. Avati <avati@gluster.com>2009-04-13 14:03:28 +0530
committerAnand V. Avati <avati@amp.gluster.com>2009-04-13 14:55:25 +0530
commitdc9cdbdc1c03c231ba405e540fac7d6483159bb2 (patch)
tree212b3d03d84748b49a3915d6b54340a4589b5966 /libglusterfs
parentb9a210a419ff28f2d75b10a680520fd6cc37ac5a (diff)
add purge list support to make iobuf_pool_purge() in expensive, and actually call it in iobuf_put :-)
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
Diffstat (limited to 'libglusterfs')
-rw-r--r--libglusterfs/src/iobuf.c10
-rw-r--r--libglusterfs/src/iobuf.h1
2 files changed, 10 insertions, 1 deletions
diff --git a/libglusterfs/src/iobuf.c b/libglusterfs/src/iobuf.c
index a233387fc..cc2f972f5 100644
--- a/libglusterfs/src/iobuf.c
+++ b/libglusterfs/src/iobuf.c
@@ -200,6 +200,7 @@ iobuf_pool_new (size_t arena_size, size_t page_size)
pthread_mutex_init (&iobuf_pool->mutex, NULL);
INIT_LIST_HEAD (&iobuf_pool->arenas.list);
INIT_LIST_HEAD (&iobuf_pool->filled.list);
+ INIT_LIST_HEAD (&iobuf_pool->purge.list);
iobuf_pool->arena_size = arena_size;
iobuf_pool->page_size = page_size;
@@ -217,7 +218,7 @@ __iobuf_pool_prune (struct iobuf_pool *iobuf_pool)
struct iobuf_arena *iobuf_arena = NULL;
struct iobuf_arena *tmp = NULL;
- list_for_each_entry_safe (iobuf_arena, tmp, &iobuf_pool->arenas.list,
+ list_for_each_entry_safe (iobuf_arena, tmp, &iobuf_pool->purge.list,
list) {
if (iobuf_arena->active_cnt)
continue;
@@ -351,6 +352,11 @@ __iobuf_put (struct iobuf *iobuf, struct iobuf_arena *iobuf_arena)
list_add (&iobuf->list, &iobuf_arena->passive.list);
iobuf_arena->passive_cnt++;
+
+ if (iobuf_arena->active_cnt == 0) {
+ list_del (&iobuf_arena->list);
+ list_add_tail (&iobuf_arena->list, &iobuf_pool->purge.list);
+ }
}
@@ -376,6 +382,8 @@ iobuf_put (struct iobuf *iobuf)
__iobuf_put (iobuf, iobuf_arena);
}
pthread_mutex_unlock (&iobuf_pool->mutex);
+
+ iobuf_pool_prune (iobuf_pool);
}
diff --git a/libglusterfs/src/iobuf.h b/libglusterfs/src/iobuf.h
index 08831bbe9..2ad640bbc 100644
--- a/libglusterfs/src/iobuf.h
+++ b/libglusterfs/src/iobuf.h
@@ -86,6 +86,7 @@ struct iobuf_pool {
struct iobuf_arena arenas; /* head node arena
(unused by itself) */
struct iobuf_arena filled; /* arenas without free iobufs */
+ struct iobuf_arena purge; /* arenas to be purged right away */
};