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-rw-r--r--api/src/glfs-fops.c109
1 files changed, 72 insertions, 37 deletions
diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c
index 18be736843d..536a7188b3b 100644
--- a/api/src/glfs-fops.c
+++ b/api/src/glfs-fops.c
@@ -33,7 +33,7 @@
struct upcall_syncop_args {
struct glfs *fs;
- struct gf_upcall *upcall_data;
+ struct glfs_upcall *up_arg;
};
#define READDIRBUF_SIZE (sizeof(struct dirent) + GF_NAME_MAX + 1)
@@ -4869,12 +4869,28 @@ out:
}
static int
+upcall_syncop_args_free(struct upcall_syncop_args *args)
+{
+ if (args && args->up_arg)
+ GLFS_FREE(args->up_arg);
+ GF_FREE(args);
+ return 0;
+}
+
+static int
glfs_upcall_syncop_cbk(int ret, call_frame_t *frame, void *opaque)
{
struct upcall_syncop_args *args = opaque;
- GF_FREE(args->upcall_data);
- GF_FREE(args);
+ /* Here we not using upcall_syncop_args_free as application
+ * will be cleaning up the args->up_arg using glfs_free
+ * post processing upcall.
+ */
+ if (ret) {
+ upcall_syncop_args_free(args);
+ } else
+ GF_FREE(args);
+
return 0;
}
@@ -4882,13 +4898,29 @@ static int
glfs_cbk_upcall_syncop(void *opaque)
{
struct upcall_syncop_args *args = opaque;
- int ret = -1;
struct glfs_upcall *up_arg = NULL;
struct glfs *fs;
- struct gf_upcall *upcall_data;
fs = args->fs;
- upcall_data = args->upcall_data;
+ up_arg = args->up_arg;
+
+ if (fs->up_cbk && up_arg) {
+ (fs->up_cbk)(up_arg, fs->up_data);
+ return 0;
+ }
+
+ return -1;
+}
+
+static struct upcall_syncop_args *
+upcall_syncop_args_init(struct glfs *fs, struct gf_upcall *upcall_data)
+{
+ struct upcall_syncop_args *args = NULL;
+ int ret = -1;
+ struct glfs_upcall *up_arg = NULL;
+
+ if (!fs || !upcall_data)
+ goto out;
up_arg = GLFS_CALLOC(1, sizeof(struct gf_upcall), glfs_release_upcall,
glfs_mt_upcall_entry_t);
@@ -4909,33 +4941,51 @@ glfs_cbk_upcall_syncop(void *opaque)
errno = EINVAL;
}
- if (!ret && (up_arg->reason != GLFS_UPCALL_EVENT_NULL)) {
- /* It could so happen that the file which got
- * upcall notification may have got deleted by
- * the same client. In such cases up_arg->reason
- * is set to GLFS_UPCALL_EVENT_NULL. No need to
- * send upcall then */
- (fs->up_cbk)(up_arg, fs->up_data);
- } else if (up_arg->reason == GLFS_UPCALL_EVENT_NULL) {
+ /* It could so happen that the file which got
+ * upcall notification may have got deleted by
+ * the same client. In such cases up_arg->reason
+ * is set to GLFS_UPCALL_EVENT_NULL. No need to
+ * send upcall then
+ */
+ if (up_arg->reason == GLFS_UPCALL_EVENT_NULL) {
gf_msg(THIS->name, GF_LOG_DEBUG, errno, API_MSG_INVALID_ENTRY,
"Upcall_EVENT_NULL received. Skipping it.");
goto out;
- } else {
+ } else if (ret) {
gf_msg(THIS->name, GF_LOG_ERROR, errno, API_MSG_INVALID_ENTRY,
"Upcall entry validation failed.");
goto out;
}
+ args = GF_CALLOC(1, sizeof(struct upcall_syncop_args),
+ glfs_mt_upcall_entry_t);
+ if (!args) {
+ gf_msg(THIS->name, GF_LOG_ERROR, ENOMEM, API_MSG_ALLOC_FAILED,
+ "Upcall syncop args allocation failed.");
+ goto out;
+ }
+
+ /* Note: we are not taking any ref on fs here.
+ * Ideally applications have to unregister for upcall events
+ * or stop polling for upcall events before performing
+ * glfs_fini. And as for outstanding synctasks created, we wait
+ * for all syncenv threads to finish tasks before cleaning up the
+ * fs->ctx. Hence it seems safe to process these callback
+ * notification without taking any lock/ref.
+ */
+ args->fs = fs;
+ args->up_arg = up_arg;
+
/* application takes care of calling glfs_free on up_arg post
* their processing */
- ret = 0;
+ return args;
out:
- if (ret && up_arg) {
+ if (up_arg) {
GLFS_FREE(up_arg);
}
- return 0;
+ return NULL;
}
static void
@@ -4952,24 +5002,10 @@ glfs_cbk_upcall_data(struct glfs *fs, struct gf_upcall *upcall_data)
goto out;
}
- args = GF_CALLOC(1, sizeof(struct upcall_syncop_args),
- glfs_mt_upcall_entry_t);
- if (!args) {
- gf_msg(THIS->name, GF_LOG_ERROR, ENOMEM, API_MSG_ALLOC_FAILED,
- "Upcall syncop args allocation failed.");
- goto out;
- }
+ args = upcall_syncop_args_init(fs, upcall_data);
- /* Note: we are not taking any ref on fs here.
- * Ideally applications have to unregister for upcall events
- * or stop polling for upcall events before performing
- * glfs_fini. And as for outstanding synctasks created, we wait
- * for all syncenv threads to finish tasks before cleaning up the
- * fs->ctx. Hence it seems safe to process these callback
- * notification without taking any lock/ref.
- */
- args->fs = fs;
- args->upcall_data = gf_memdup(upcall_data, sizeof(*upcall_data));
+ if (!args)
+ goto out;
ret = synctask_new(THIS->ctx->env, glfs_cbk_upcall_syncop,
glfs_upcall_syncop_cbk, NULL, args);
@@ -4978,8 +5014,7 @@ glfs_cbk_upcall_data(struct glfs *fs, struct gf_upcall *upcall_data)
gf_msg(THIS->name, GF_LOG_ERROR, errno, API_MSG_UPCALL_SYNCOP_FAILED,
"Synctak for Upcall event_type(%d) and gfid(%s) failed",
upcall_data->event_type, (char *)(upcall_data->gfid));
- GF_FREE(args->upcall_data);
- GF_FREE(args);
+ upcall_syncop_args_free(args);
}
out: