Commit 076ebfad authored by Pawel Wodkowski's avatar Pawel Wodkowski Committed by Jim Harris
Browse files

bdev: add register and unregister notification 



When bdev is registered it will send "bdev_register" notification and
"bdev_unregister" when unregister is complete.

Change-Id: I3b37a4cb766a473f3da63a571036add366e78fa5
Signed-off-by: default avatarPawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/448839


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
parent ab1622aa

lib/bdev/bdev.c

+7 −0
Original line number Diff line number Diff line
@@ -44,6 +44,7 @@ 
#include "spdk/queue.h"

#include "spdk/nvme_spec.h"

#include "spdk/scsi_spec.h"

#include "spdk/notify.h"

#include "spdk/util.h"

#include "spdk/trace.h"
@@ -920,6 +921,9 @@ spdk_bdev_initialize(spdk_bdev_init_cb cb_fn, void *cb_arg) 
	g_init_cb_fn = cb_fn;

	g_init_cb_arg = cb_arg;



	spdk_notify_type_register("bdev_register");

	spdk_notify_type_register("bdev_unregister");



	snprintf(mempool_name, sizeof(mempool_name), "bdev_io_%d", getpid());



	g_bdev_mgr.bdev_io_pool = spdk_mempool_create(mempool_name,
@@ -3747,6 +3751,7 @@ spdk_bdev_register(struct spdk_bdev *bdev) 
		spdk_bdev_start(bdev);

	}



	spdk_notify_send("bdev_register", spdk_bdev_get_name(bdev));

	return rc;

}
@@ -3761,6 +3766,7 @@ spdk_vbdev_register(struct spdk_bdev *vbdev, struct spdk_bdev **base_bdevs, int 
	}



	spdk_bdev_start(vbdev);

	spdk_notify_send("bdev_register", spdk_bdev_get_name(vbdev));

	return 0;

}
@@ -3815,6 +3821,7 @@ spdk_bdev_unregister_unsafe(struct spdk_bdev *bdev) 
	if (rc == 0) {

		TAILQ_REMOVE(&g_bdev_mgr.bdevs, bdev, internal.link);

		SPDK_DEBUGLOG(SPDK_LOG_BDEV, "Removing bdev %s from list done\n", bdev->name);

		spdk_notify_send("bdev_unregister", spdk_bdev_get_name(bdev));

	}



	return rc;