Commit ff526d86 authored by Long Li's avatar Long Li Committed by Steve French
Browse files

CIFS: SMBD: Do not call ib_dereg_mr on invalidated memory registration 



It is not necessary to deregister a memory registration after it has been
successfully invalidated.

Signed-off-by: default avatarLong Li <longli@microsoft.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 6d3adb23

fs/cifs/smbdirect.c

+19 −19
Original line number Diff line number Diff line
@@ -2295,8 +2295,12 @@ static void smbd_mr_recovery_work(struct work_struct *work) 
	int rc;



	list_for_each_entry(smbdirect_mr, &info->mr_list, list) {

		if (smbdirect_mr->state == MR_INVALIDATED ||

			smbdirect_mr->state == MR_ERROR) {

		if (smbdirect_mr->state == MR_INVALIDATED)

			ib_dma_unmap_sg(

				info->id->device, smbdirect_mr->sgl,

				smbdirect_mr->sgl_count,

				smbdirect_mr->dir);

		else if (smbdirect_mr->state == MR_ERROR) {



			/* recover this MR entry */

			rc = ib_dereg_mr(smbdirect_mr->mr);
@@ -2320,12 +2324,9 @@ static void smbd_mr_recovery_work(struct work_struct *work) 
				smbd_disconnect_rdma_connection(info);

				continue;

			}



			if (smbdirect_mr->state == MR_INVALIDATED)

				ib_dma_unmap_sg(

					info->id->device, smbdirect_mr->sgl,

					smbdirect_mr->sgl_count,

					smbdirect_mr->dir);

		} else

			/* This MR is being used, don't recover it */

			continue;



		smbdirect_mr->state = MR_READY;
@@ -2340,7 +2341,6 @@ static void smbd_mr_recovery_work(struct work_struct *work) 
			wake_up_interruptible(&info->wait_mr);

	}

}

}



static void destroy_mr_list(struct smbd_connection *info)

{

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