Commit 6c767867 authored Sep 28, 2018 by Juergen Gross Committed by Jens Axboe Sep 28, 2018

xen/blkfront: correct purging of persistent grants



Commit a46b5367 ("xen/blkfront: cleanup
stale persistent grants") introduced a regression as purged persistent
grants were not pu into the list of free grants again. Correct that.

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 15c20688

drivers/block/xen-blkfront.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -2670,8 +2670,8 @@ static void purge_persistent_grants(struct blkfront_info *info)
		list_del(&gnt_list_entry->node);
		gnttab_end_foreign_access(gnt_list_entry->gref, 0, 0UL);
		rinfo->persistent_gnts_c--;
		__free_page(gnt_list_entry->page);
		kfree(gnt_list_entry);
		gnt_list_entry->gref = GRANT_INVALID_REF;
		list_add_tail(&gnt_list_entry->node, &rinfo->grants);
		}

		spin_unlock_irqrestore(&rinfo->ring_lock, flags);

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